diff --git a/go/vt/sqlparser/ast.go b/go/vt/sqlparser/ast.go
index 44d47cfcdcb..bca7edbf83c 100644
--- a/go/vt/sqlparser/ast.go
+++ b/go/vt/sqlparser/ast.go
@@ -739,22 +739,31 @@ type DDL struct {
 
 	// VindexCols is set for AddColVindexStr.
 	VindexCols []ColIdent
+
+	// VschemaUpdates are key=value expressions to set vschema values like `Authoritative`
+	VschemaUpdates UpdateExprs
+
+	// VschemaCol is set for add/drop a vschema column
+	VschemaCol *ColumnDefinition
 }
 
 // DDL strings.
 const (
-	CreateStr           = "create"
-	AlterStr            = "alter"
-	DropStr             = "drop"
-	RenameStr           = "rename"
-	TruncateStr         = "truncate"
-	FlushStr            = "flush"
-	CreateVindexStr     = "create vindex"
-	DropVindexStr       = "drop vindex"
-	AddVschemaTableStr  = "add vschema table"
-	DropVschemaTableStr = "drop vschema table"
-	AddColVindexStr     = "on table add vindex"
-	DropColVindexStr    = "on table drop vindex"
+	CreateStr            = "create"
+	AlterStr             = "alter"
+	DropStr              = "drop"
+	RenameStr            = "rename"
+	TruncateStr          = "truncate"
+	FlushStr             = "flush"
+	CreateVindexStr      = "create vindex"
+	DropVindexStr        = "drop vindex"
+	AddVschemaTableStr   = "add vschema table"
+	DropVschemaTableStr  = "drop vschema table"
+	AddColVindexStr      = "on table add vindex"
+	DropColVindexStr     = "on table drop vindex"
+	AddVschemaColStr     = "on table add column"
+	DropVschemaColStr    = "on table drop column"
+	SetVschemaUpdatesStr = "on table set"
 
 	// Vindex DDL param to specify the owner of a vindex
 	VindexOwnerStr = "owner"
@@ -813,6 +822,19 @@ func (node *DDL) Format(buf *TrackedBuffer) {
 		}
 	case DropColVindexStr:
 		buf.Myprintf("alter vschema on %v drop vindex %v", node.Table, node.VindexSpec.Name)
+	case AddVschemaColStr:
+		buf.Myprintf("alter vschema on %v add column %v ", node.Table, node.VschemaCol.Name)
+		node.VschemaCol.Type.Format(buf)
+	case DropVschemaColStr:
+		buf.Myprintf("alter vschema on %v drop column %v", node.Table, node.VschemaCol.Name)
+	case SetVschemaUpdatesStr:
+		buf.Myprintf("alter vschema on %v set ", node.Table)
+		for i, update := range node.VschemaUpdates {
+			if i != 0 {
+				buf.Myprintf(", ")
+			}
+			update.Format(buf)
+		}
 	default:
 		buf.Myprintf("%s table %v", node.Action, node.Table)
 	}
diff --git a/go/vt/sqlparser/parse_test.go b/go/vt/sqlparser/parse_test.go
index a189a51cbb3..2ae5dd04dda 100644
--- a/go/vt/sqlparser/parse_test.go
+++ b/go/vt/sqlparser/parse_test.go
@@ -1012,6 +1012,20 @@ var (
 	}, {
 		input:  "alter vschema on a drop vindex `add`",
 		output: "alter vschema on a drop vindex `add`",
+	}, {
+		input: "alter vschema on a add column name varchar(16)",
+	}, {
+		input: "alter vschema on a drop column name",
+	}, {
+		input: "alter vschema on a set column_list_authoritative = true",
+	}, {
+		input:  "alter vschema on a set column_list_authoritative=true",
+		output: "alter vschema on a set column_list_authoritative = true",
+	}, {
+		input: "alter vschema on a set column_list_authoritative = false",
+	}, {
+		input:  "alter vschema on a set column_list_authoritative=false",
+		output: "alter vschema on a set column_list_authoritative = false",
 	}, {
 		input:  "create index a on b",
 		output: "alter table b",
@@ -1266,6 +1280,8 @@ var (
 		input: "show vschema vindexes",
 	}, {
 		input: "show vschema vindexes on t",
+	}, {
+		input: "show vschema columns on t",
 	}, {
 		input:  "show warnings",
 		output: "show warnings",
diff --git a/go/vt/sqlparser/sql.go b/go/vt/sqlparser/sql.go
index 3de30b98c80..9328d58d95f 100644
--- a/go/vt/sqlparser/sql.go
+++ b/go/vt/sqlparser/sql.go
@@ -642,414 +642,428 @@ var yyExca = [...]int{
 	5, 29,
 	-2, 4,
 	-1, 37,
-	159, 296,
-	160, 296,
-	-2, 286,
+	159, 300,
+	160, 300,
+	-2, 290,
 	-1, 270,
-	112, 641,
-	-2, 637,
+	112, 645,
+	-2, 641,
 	-1, 271,
-	112, 642,
-	-2, 638,
+	112, 646,
+	-2, 642,
 	-1, 336,
-	82, 816,
+	82, 820,
 	-2, 60,
 	-1, 337,
-	82, 772,
+	82, 776,
 	-2, 61,
 	-1, 342,
-	82, 751,
-	-2, 603,
+	82, 755,
+	-2, 607,
 	-1, 344,
-	82, 793,
-	-2, 605,
-	-1, 614,
-	1, 348,
-	5, 348,
-	12, 348,
-	13, 348,
-	14, 348,
-	15, 348,
-	17, 348,
-	19, 348,
-	30, 348,
-	31, 348,
-	42, 348,
-	43, 348,
-	44, 348,
-	45, 348,
-	46, 348,
-	48, 348,
-	49, 348,
-	52, 348,
-	53, 348,
-	55, 348,
-	56, 348,
-	269, 348,
-	-2, 366,
-	-1, 617,
+	82, 797,
+	-2, 609,
+	-1, 615,
+	1, 352,
+	5, 352,
+	12, 352,
+	13, 352,
+	14, 352,
+	15, 352,
+	17, 352,
+	19, 352,
+	30, 352,
+	31, 352,
+	42, 352,
+	43, 352,
+	44, 352,
+	45, 352,
+	46, 352,
+	48, 352,
+	49, 352,
+	52, 352,
+	53, 352,
+	55, 352,
+	56, 352,
+	269, 352,
+	-2, 370,
+	-1, 618,
 	53, 43,
 	55, 43,
 	-2, 45,
-	-1, 759,
-	112, 644,
-	-2, 640,
-	-1, 980,
+	-1, 761,
+	112, 648,
+	-2, 644,
+	-1, 984,
 	5, 30,
-	-2, 432,
-	-1, 1012,
+	-2, 436,
+	-1, 1016,
 	5, 29,
-	-2, 577,
-	-1, 1264,
+	-2, 581,
+	-1, 1273,
 	5, 30,
-	-2, 578,
-	-1, 1320,
+	-2, 582,
+	-1, 1329,
 	5, 29,
-	-2, 580,
-	-1, 1401,
+	-2, 584,
+	-1, 1410,
 	5, 30,
-	-2, 581,
+	-2, 585,
 }
 
 const yyPrivate = 57344
 
-const yyLast = 13012
+const yyLast = 12875
 
 var yyAct = [...]int{
 
-	271, 1435, 1425, 1219, 1389, 1104, 570, 275, 1015, 1284,
-	1297, 866, 1332, 301, 1033, 1159, 288, 843, 1193, 249,
-	57, 1156, 1016, 909, 865, 1166, 1160, 945, 1172, 895,
-	569, 3, 81, 1058, 875, 341, 210, 841, 1127, 210,
-	972, 794, 1039, 784, 791, 1075, 879, 627, 616, 845,
-	724, 830, 812, 761, 610, 502, 264, 508, 905, 442,
-	626, 335, 823, 862, 514, 954, 273, 210, 81, 611,
-	522, 258, 210, 332, 210, 1084, 584, 56, 1428, 240,
-	1412, 330, 248, 313, 207, 319, 320, 317, 318, 316,
-	315, 314, 1423, 1399, 928, 1420, 1220, 585, 1411, 321,
-	322, 1398, 1256, 1149, 447, 262, 475, 1187, 927, 1188,
-	1189, 889, 628, 61, 629, 331, 205, 201, 202, 203,
-	444, 856, 446, 496, 241, 242, 243, 244, 1046, 246,
-	247, 1045, 857, 858, 1047, 245, 932, 1066, 888, 63,
-	64, 65, 66, 67, 1287, 926, 1364, 535, 534, 544,
-	545, 537, 538, 539, 540, 541, 542, 543, 536, 492,
-	197, 546, 199, 896, 1303, 1239, 460, 493, 490, 491,
-	1237, 239, 477, 1422, 479, 485, 486, 1107, 1128, 1106,
-	699, 697, 495, 473, 471, 1419, 1382, 1390, 1103, 824,
-	1333, 880, 461, 1443, 1091, 923, 920, 921, 210, 919,
-	1439, 210, 449, 1335, 476, 478, 1108, 210, 199, 703,
-	793, 1341, 690, 210, 698, 1130, 81, 1182, 81, 81,
-	882, 81, 81, 1089, 81, 1181, 81, 1180, 1034, 1036,
-	930, 933, 445, 700, 452, 81, 212, 1100, 204, 200,
-	1371, 882, 1267, 1102, 939, 221, 453, 938, 1132, 459,
-	1136, 338, 1131, 1114, 1129, 466, 198, 882, 990, 1134,
-	966, 468, 558, 559, 733, 81, 925, 526, 1133, 234,
-	443, 1334, 467, 510, 863, 539, 540, 541, 542, 543,
-	536, 1135, 1137, 546, 546, 511, 1059, 1205, 924, 457,
-	1090, 730, 521, 474, 896, 1095, 1092, 1085, 1093, 1088,
-	736, 737, 1380, 1086, 1087, 1035, 1437, 505, 509, 1438,
-	947, 1436, 1342, 1340, 1350, 1397, 881, 1094, 536, 1365,
-	213, 546, 443, 725, 527, 498, 499, 216, 210, 210,
-	210, 1170, 929, 630, 81, 225, 220, 881, 1206, 1101,
-	81, 1099, 878, 876, 1151, 877, 768, 931, 520, 519,
-	874, 880, 454, 881, 455, 441, 813, 456, 519, 571,
-	766, 767, 765, 692, 1064, 521, 609, 223, 582, 512,
-	463, 464, 465, 233, 521, 813, 608, 999, 617, 537,
-	538, 539, 540, 541, 542, 543, 536, 70, 946, 546,
-	1444, 587, 589, 591, 593, 595, 597, 598, 1385, 214,
-	985, 516, 480, 481, 726, 482, 483, 624, 484, 22,
-	487, 618, 588, 590, 448, 594, 596, 1403, 599, 497,
-	1293, 520, 519, 71, 54, 1292, 227, 217, 218, 1445,
-	228, 229, 230, 232, 764, 231, 237, 984, 521, 983,
-	219, 222, 210, 215, 236, 235, 785, 81, 786, 885,
-	520, 519, 210, 210, 81, 886, 520, 519, 210, 1079,
-	1078, 210, 196, 1067, 210, 732, 1405, 521, 210, 253,
-	81, 81, 1381, 521, 1378, 81, 81, 81, 210, 81,
-	81, 520, 519, 751, 753, 754, 81, 81, 1153, 752,
-	638, 450, 451, 963, 964, 965, 1314, 1048, 521, 1049,
-	694, 695, 731, 712, 1290, 1111, 701, 1076, 1222, 331,
-	1338, 1421, 707, 1059, 81, 1407, 501, 338, 210, 520,
-	519, 1338, 1393, 501, 81, 1054, 718, 327, 328, 787,
-	738, 1338, 501, 710, 1338, 1372, 521, 709, 277, 1338,
-	1337, 1347, 704, 762, 1282, 1281, 1269, 501, 1266, 501,
-	1346, 727, 544, 545, 537, 538, 539, 540, 541, 542,
-	543, 536, 759, 708, 546, 693, 747, 691, 81, 291,
-	290, 293, 294, 295, 296, 688, 748, 749, 292, 297,
-	1212, 1211, 1208, 1209, 740, 803, 807, 1208, 1207, 978,
-	501, 814, 757, 469, 755, 827, 501, 796, 501, 637,
-	636, 81, 81, 798, 462, 1202, 1157, 883, 210, 1169,
-	1169, 850, 58, 620, 826, 1040, 210, 210, 796, 1040,
-	210, 210, 1262, 1349, 81, 788, 789, 827, 1210, 571,
-	621, 689, 801, 802, 1117, 994, 24, 81, 696, 827,
-	832, 835, 836, 837, 833, 810, 834, 838, 820, 992,
-	1173, 1174, 978, 54, 713, 714, 825, 851, 827, 715,
-	716, 717, 1169, 719, 720, 302, 51, 24, 1050, 852,
-	721, 722, 622, 855, 620, 989, 987, 1004, 978, 993,
-	849, 897, 898, 899, 54, 853, 854, 861, 24, 1003,
-	978, 210, 81, 991, 81, 1319, 620, 870, 81, 81,
-	210, 210, 623, 210, 210, 734, 702, 210, 81, 255,
-	758, 911, 1010, 1413, 1299, 54, 1011, 51, 1430, 988,
-	986, 890, 1274, 910, 210, 254, 210, 210, 1198, 210,
-	1053, 832, 835, 836, 837, 833, 54, 834, 838, 914,
-	1173, 1174, 1426, 907, 908, 906, 901, 900, 936, 937,
-	1105, 940, 941, 913, 1417, 942, 1200, 54, 891, 892,
-	893, 894, 1176, 1157, 1080, 728, 706, 746, 1027, 759,
-	1179, 1178, 944, 1028, 902, 903, 904, 950, 1025, 762,
-	1024, 1023, 1410, 1026, 799, 800, 259, 260, 952, 953,
-	809, 509, 955, 1113, 956, 535, 534, 544, 545, 537,
-	538, 539, 540, 541, 542, 543, 536, 338, 951, 546,
-	515, 556, 1415, 819, 961, 821, 822, 960, 1071, 968,
-	867, 1029, 635, 836, 837, 513, 503, 470, 210, 210,
-	210, 210, 210, 1063, 1017, 916, 1387, 1386, 504, 1317,
-	210, 1061, 1055, 210, 1260, 1295, 705, 210, 973, 840,
-	515, 210, 959, 979, 1012, 256, 257, 250, 1354, 251,
-	958, 300, 58, 1353, 998, 1301, 81, 614, 1040, 494,
-	1000, 1432, 1431, 798, 723, 517, 915, 1051, 917, 1432,
-	1368, 472, 1018, 472, 472, 1021, 472, 472, 1041, 472,
-	1030, 472, 943, 79, 1042, 1288, 1038, 729, 1019, 1020,
-	472, 1022, 60, 1043, 62, 619, 55, 1, 1424, 1221,
-	1296, 922, 1388, 1060, 81, 81, 1331, 758, 1192, 873,
-	51, 1068, 1069, 864, 1056, 1057, 69, 440, 68, 340,
-	815, 1379, 872, 871, 1339, 555, 1286, 884, 557, 1065,
-	887, 1199, 1062, 81, 1384, 643, 641, 1077, 642, 640,
-	645, 644, 639, 224, 333, 839, 962, 631, 210, 1070,
-	912, 1072, 1073, 1074, 518, 72, 568, 81, 572, 573,
-	574, 575, 576, 577, 578, 579, 580, 1098, 583, 586,
-	586, 586, 592, 586, 586, 592, 586, 600, 601, 602,
-	603, 604, 605, 1097, 615, 1110, 1096, 918, 1083, 488,
-	489, 226, 554, 977, 1112, 957, 1115, 1044, 339, 1164,
-	1121, 735, 1120, 507, 81, 81, 1352, 1150, 1017, 1158,
-	1126, 996, 1300, 997, 1139, 1161, 759, 581, 1138, 811,
-	276, 750, 289, 286, 287, 741, 1009, 528, 81, 274,
-	266, 613, 606, 831, 1163, 829, 828, 1175, 1171, 867,
-	1177, 81, 612, 81, 81, 1116, 1152, 1255, 1168, 1363,
-	1184, 745, 26, 1183, 1191, 59, 261, 19, 763, 18,
-	17, 20, 16, 15, 14, 1190, 458, 340, 30, 340,
-	340, 210, 340, 340, 1186, 340, 21, 340, 13, 1195,
-	1196, 1197, 12, 11, 10, 9, 340, 1185, 210, 1082,
-	8, 7, 6, 5, 81, 4, 252, 81, 81, 210,
-	23, 2, 472, 0, 0, 81, 0, 0, 210, 472,
-	0, 0, 0, 0, 0, 0, 524, 1109, 0, 1213,
-	0, 0, 1203, 1204, 0, 472, 472, 0, 1226, 0,
-	472, 472, 472, 0, 472, 472, 1216, 0, 0, 0,
-	1119, 472, 472, 0, 614, 1228, 1235, 1225, 614, 1227,
-	0, 0, 0, 0, 1214, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 1144, 0, 1215, 1017, 1217, 500,
-	1261, 0, 0, 0, 0, 0, 0, 0, 0, 1270,
-	0, 81, 1271, 0, 0, 340, 0, 0, 0, 81,
-	0, 632, 1051, 0, 1280, 0, 0, 0, 0, 0,
-	1257, 0, 1252, 501, 81, 0, 0, 0, 0, 571,
-	0, 81, 0, 51, 0, 0, 0, 1272, 0, 0,
-	1273, 0, 0, 1275, 867, 0, 867, 1289, 572, 1291,
-	1232, 1233, 1253, 1234, 0, 0, 1236, 0, 1238, 0,
-	535, 534, 544, 545, 537, 538, 539, 540, 541, 542,
-	543, 536, 0, 1302, 546, 0, 0, 81, 81, 0,
-	81, 0, 0, 0, 0, 81, 1161, 81, 81, 81,
-	210, 842, 0, 81, 1326, 615, 1327, 1328, 1329, 1318,
-	1325, 0, 0, 0, 0, 0, 1320, 1330, 1119, 0,
-	81, 1336, 0, 0, 763, 1343, 1283, 0, 340, 1351,
-	0, 0, 0, 0, 0, 340, 535, 534, 544, 545,
-	537, 538, 539, 540, 541, 542, 543, 536, 0, 0,
-	546, 340, 340, 1161, 0, 1369, 340, 340, 340, 81,
-	340, 340, 0, 0, 1377, 1376, 0, 340, 340, 268,
-	81, 81, 1370, 1344, 0, 1345, 0, 472, 0, 472,
-	1391, 1395, 1392, 0, 0, 0, 614, 614, 614, 614,
-	614, 0, 81, 472, 867, 742, 1017, 1400, 0, 0,
-	0, 614, 0, 210, 0, 524, 0, 0, 340, 614,
-	0, 81, 0, 0, 0, 0, 0, 0, 1294, 1409,
-	0, 0, 0, 0, 1298, 0, 0, 0, 1249, 501,
-	1394, 571, 1414, 1416, 81, 0, 0, 0, 0, 0,
-	0, 0, 0, 1418, 967, 0, 0, 1429, 0, 790,
-	0, 1404, 1246, 501, 1440, 0, 0, 0, 0, 805,
-	805, 0, 739, 0, 0, 805, 535, 534, 544, 545,
-	537, 538, 539, 540, 541, 542, 543, 536, 0, 0,
-	546, 0, 817, 818, 0, 0, 0, 0, 0, 0,
-	535, 534, 544, 545, 537, 538, 539, 540, 541, 542,
-	543, 536, 0, 1259, 546, 340, 0, 0, 0, 1013,
-	1014, 0, 0, 615, 615, 615, 615, 615, 340, 660,
-	795, 797, 1243, 501, 0, 0, 0, 0, 842, 0,
-	1037, 0, 0, 0, 0, 0, 615, 0, 0, 0,
-	0, 535, 534, 544, 545, 537, 538, 539, 540, 541,
-	542, 543, 536, 1298, 867, 546, 0, 0, 0, 0,
-	535, 534, 544, 545, 537, 538, 539, 540, 541, 542,
-	543, 536, 0, 340, 546, 340, 0, 0, 1258, 934,
-	935, 0, 0, 0, 0, 0, 0, 0, 0, 340,
-	0, 0, 0, 0, 0, 0, 0, 648, 0, 0,
-	472, 534, 544, 545, 537, 538, 539, 540, 541, 542,
-	543, 536, 0, 0, 546, 340, 535, 534, 544, 545,
-	537, 538, 539, 540, 541, 542, 543, 536, 472, 0,
-	546, 0, 0, 0, 661, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 560, 561,
-	562, 563, 564, 565, 566, 567, 674, 677, 678, 679,
-	680, 681, 682, 0, 683, 684, 685, 686, 687, 662,
-	663, 664, 665, 646, 647, 675, 614, 649, 0, 650,
-	651, 652, 653, 654, 655, 656, 657, 658, 659, 666,
-	667, 668, 669, 670, 671, 672, 673, 1162, 0, 51,
-	24, 25, 52, 27, 28, 0, 0, 0, 805, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 43,
-	0, 0, 0, 0, 29, 48, 49, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 501, 975, 0,
-	0, 0, 976, 0, 38, 0, 0, 340, 54, 980,
-	981, 982, 676, 0, 0, 0, 0, 0, 0, 0,
-	995, 0, 0, 0, 0, 1001, 0, 1002, 0, 0,
-	1005, 1006, 1007, 1008, 535, 534, 544, 545, 537, 538,
-	539, 540, 541, 542, 543, 536, 0, 0, 546, 0,
-	0, 0, 1032, 0, 0, 1081, 340, 0, 0, 1250,
-	0, 0, 0, 615, 0, 0, 0, 0, 0, 31,
-	32, 34, 33, 36, 0, 50, 0, 0, 0, 0,
-	0, 0, 0, 0, 340, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 1254, 37, 44, 45, 0,
-	0, 46, 47, 35, 0, 0, 0, 0, 340, 0,
-	0, 0, 0, 0, 0, 0, 39, 40, 0, 41,
-	42, 0, 0, 0, 0, 0, 1276, 1277, 1278, 0,
-	0, 0, 340, 535, 534, 544, 545, 537, 538, 539,
-	540, 541, 542, 543, 536, 0, 0, 546, 0, 0,
-	0, 1247, 805, 0, 0, 1165, 1167, 0, 760, 472,
-	0, 769, 770, 771, 772, 773, 774, 775, 776, 777,
-	778, 779, 780, 781, 782, 783, 0, 0, 0, 1167,
-	0, 0, 0, 0, 0, 0, 0, 0, 1125, 0,
-	0, 0, 340, 0, 340, 1194, 1244, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 53, 0, 1162, 0,
-	0, 1321, 0, 0, 0, 0, 816, 0, 0, 0,
-	0, 0, 0, 0, 506, 535, 534, 544, 545, 537,
-	538, 539, 540, 541, 542, 543, 536, 0, 0, 546,
-	0, 1348, 0, 0, 0, 1218, 0, 0, 1223, 1224,
-	0, 0, 0, 0, 0, 0, 340, 0, 0, 0,
-	208, 0, 0, 238, 0, 1162, 0, 51, 0, 0,
-	535, 534, 544, 545, 537, 538, 539, 540, 541, 542,
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+	0, 1192, 0, 0, 1313, 1314, 661, 1315, 1316, 0,
+	1317, 1318, 978, 1319, 1320, 1321, 0, 827, 0, 1324,
+	1325, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	854, 0, 536, 535, 545, 546, 538, 539, 540, 541,
+	542, 543, 544, 537, 0, 0, 547, 808, 536, 535,
+	545, 546, 538, 539, 540, 541, 542, 543, 544, 537,
+	0, 0, 547, 0, 0, 0, 208, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 265, 0, 0, 0,
+	0, 0, 0, 0, 649, 0, 0, 265, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 712,
+	916, 0, 0, 0, 0, 0, 0, 0, 0, 938,
+	939, 0, 943, 944, 0, 0, 945, 1266, 0, 808,
+	0, 662, 0, 0, 0, 0, 572, 0, 0, 0,
+	0, 0, 0, 947, 1281, 0, 0, 1282, 953, 954,
+	1284, 0, 0, 675, 678, 679, 680, 681, 682, 683,
+	0, 684, 685, 686, 687, 688, 663, 664, 665, 666,
+	647, 648, 676, 0, 650, 0, 651, 652, 653, 654,
+	655, 656, 657, 658, 659, 660, 667, 668, 669, 670,
+	671, 672, 673, 674, 0, 0, 0, 0, 1442, 208,
+	24, 25, 52, 27, 28, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 208, 0, 0, 43,
+	0, 0, 0, 0, 29, 48, 49, 0, 0, 0,
+	208, 0, 0, 0, 0, 0, 0, 0, 0, 208,
+	0, 0, 0, 0, 38, 0, 0, 0, 54, 677,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 265, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 806, 208, 208, 208, 208, 208, 1433, 0, 0,
-	0, 0, 0, 0, 1031, 0, 0, 208, 0, 0,
-	0, 847, 0, 0, 0, 208, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 808, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 31,
+	32, 34, 33, 36, 0, 50, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 1403,
+	572, 0, 0, 0, 0, 0, 37, 44, 45, 0,
+	0, 46, 47, 35, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 39, 40, 0, 41,
+	42, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	1122, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 849, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 53, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 208, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 265, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 265, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 711, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 806, 0, 0, 139, 0,
-	0, 0, 0, 272, 0, 0, 0, 103, 0, 269,
-	0, 0, 0, 120, 312, 122, 0, 0, 160, 131,
-	0, 0, 0, 0, 303, 304, 0, 0, 0, 0,
-	0, 0, 859, 0, 54, 0, 0, 270, 291, 290,
-	293, 294, 295, 296, 0, 0, 96, 292, 297, 298,
-	299, 860, 0, 0, 267, 284, 0, 311, 0, 0,
-	0, 0, 0, 0, 0, 208, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 281, 282, 0,
-	0, 0, 208, 325, 0, 283, 0, 0, 278, 279,
-	280, 285, 0, 208, 0, 0, 0, 0, 0, 0,
-	0, 109, 208, 0, 0, 211, 0, 0, 323, 0,
-	146, 0, 163, 111, 119, 83, 90, 0, 110, 137,
-	151, 155, 0, 0, 0, 99, 0, 153, 141, 176,
-	0, 142, 152, 123, 168, 147, 175, 183, 184, 165,
-	182, 191, 84, 164, 174, 97, 156, 86, 172, 162,
-	129, 115, 116, 85, 806, 150, 102, 107, 101, 138,
-	169, 170, 100, 194, 91, 181, 88, 92, 180, 136,
-	167, 173, 130, 127, 87, 171, 128, 126, 118, 105,
-	112, 144, 125, 145, 113, 133, 132, 134, 0, 0,
-	0, 161, 178, 195, 94, 0, 157, 166, 185, 186,
-	187, 188, 189, 190, 0, 0, 95, 108, 104, 143,
-	135, 93, 114, 158, 117, 124, 149, 193, 140, 154,
-	98, 177, 159, 313, 324, 319, 320, 317, 318, 316,
-	315, 314, 326, 305, 306, 307, 308, 310, 0, 321,
-	322, 309, 82, 89, 121, 192, 148, 106, 179, 0,
+	0, 0, 808, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 1220, 0, 0, 208, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 428, 417, 847, 388, 431, 366, 380, 439,
+	1223, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 428, 417, 1234, 388, 431, 366, 380, 439,
+	381, 382, 410, 352, 396, 139, 378, 0, 369, 347,
+	375, 348, 367, 390, 103, 393, 365, 419, 399, 430,
+	120, 437, 122, 404, 0, 160, 131, 0, 0, 392,
+	421, 394, 415, 387, 411, 357, 403, 432, 379, 408,
+	433, 0, 0, 0, 80, 0, 870, 871, 0, 0,
+	0, 0, 0, 96, 0, 406, 427, 377, 407, 409,
+	346, 405, 0, 350, 353, 438, 423, 372, 373, 1056,
+	0, 0, 0, 0, 0, 0, 391, 395, 412, 385,
+	0, 0, 0, 0, 0, 0, 0, 0, 370, 0,
+	402, 0, 0, 0, 354, 351, 0, 0, 389, 0,
+	0, 0, 356, 0, 371, 413, 0, 345, 109, 416,
+	422, 386, 211, 426, 384, 383, 429, 146, 0, 163,
+	111, 119, 83, 90, 0, 110, 137, 151, 155, 420,
+	368, 376, 99, 374, 153, 141, 176, 401, 142, 152,
+	123, 168, 147, 175, 183, 184, 165, 182, 191, 84,
+	164, 174, 97, 156, 86, 172, 162, 129, 115, 116,
+	85, 0, 150, 102, 107, 101, 138, 169, 170, 100,
+	194, 91, 181, 88, 92, 180, 136, 167, 173, 130,
+	127, 87, 171, 128, 126, 118, 105, 112, 144, 125,
+	145, 113, 133, 132, 134, 0, 349, 0, 161, 178,
+	195, 94, 364, 157, 166, 185, 186, 187, 188, 189,
+	190, 0, 0, 95, 108, 104, 143, 135, 93, 114,
+	158, 117, 124, 149, 193, 140, 154, 98, 177, 159,
+	360, 363, 358, 359, 397, 398, 434, 435, 436, 414,
+	355, 0, 361, 362, 0, 418, 424, 425, 400, 82,
+	89, 121, 192, 148, 106, 179, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 428, 417,
+	1413, 388, 431, 366, 380, 439, 381, 382, 410, 352,
+	396, 139, 378, 0, 369, 347, 375, 348, 367, 390,
+	103, 393, 365, 419, 399, 430, 120, 437, 122, 404,
+	0, 160, 131, 0, 0, 392, 421, 394, 415, 387,
+	411, 357, 403, 432, 379, 408, 433, 0, 0, 0,
+	80, 0, 870, 871, 0, 0, 0, 0, 0, 96,
+	0, 406, 427, 377, 407, 409, 346, 405, 0, 350,
+	353, 438, 423, 372, 373, 0, 0, 0, 0, 0,
+	0, 0, 391, 395, 412, 385, 0, 0, 0, 0,
+	0, 0, 0, 0, 370, 0, 402, 0, 0, 0,
+	354, 351, 0, 0, 389, 0, 0, 0, 356, 0,
+	371, 413, 0, 345, 109, 416, 422, 386, 211, 426,
+	384, 383, 429, 146, 0, 163, 111, 119, 83, 90,
+	0, 110, 137, 151, 155, 420, 368, 376, 99, 374,
+	153, 141, 176, 401, 142, 152, 123, 168, 147, 175,
+	183, 184, 165, 182, 191, 84, 164, 174, 97, 156,
+	86, 172, 162, 129, 115, 116, 85, 0, 150, 102,
+	107, 101, 138, 169, 170, 100, 194, 91, 181, 88,
+	92, 180, 136, 167, 173, 130, 127, 87, 171, 128,
+	126, 118, 105, 112, 144, 125, 145, 113, 133, 132,
+	134, 0, 349, 0, 161, 178, 195, 94, 364, 157,
+	166, 185, 186, 187, 188, 189, 190, 0, 0, 95,
+	108, 104, 143, 135, 93, 114, 158, 117, 124, 149,
+	193, 140, 154, 98, 177, 159, 360, 363, 358, 359,
+	397, 398, 434, 435, 436, 414, 355, 0, 361, 362,
+	0, 418, 424, 425, 400, 82, 89, 121, 192, 148,
+	106, 179, 428, 417, 0, 388, 431, 366, 380, 439,
 	381, 382, 410, 352, 396, 139, 378, 0, 369, 347,
 	375, 348, 367, 390, 103, 393, 365, 419, 399, 430,
 	120, 437, 122, 404, 0, 160, 131, 0, 0, 392,
 	421, 394, 415, 387, 411, 357, 403, 432, 379, 408,
-	433, 0, 0, 0, 80, 0, 868, 869, 0, 0,
+	433, 54, 0, 0, 80, 0, 0, 0, 0, 0,
 	0, 0, 0, 96, 0, 406, 427, 377, 407, 409,
-	346, 405, 0, 350, 353, 438, 423, 372, 373, 1052,
+	346, 405, 0, 350, 353, 438, 423, 372, 373, 0,
 	0, 0, 0, 0, 0, 0, 391, 395, 412, 385,
-	0, 0, 0, 806, 0, 0, 0, 0, 370, 0,
-	402, 0, 0, 0, 354, 351, 0, 208, 389, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 370, 0,
+	402, 0, 0, 0, 354, 351, 0, 0, 389, 0,
 	0, 0, 356, 0, 371, 413, 0, 345, 109, 416,
 	422, 386, 211, 426, 384, 383, 429, 146, 0, 163,
 	111, 119, 83, 90, 0, 110, 137, 151, 155, 420,
@@ -1071,11 +1085,11 @@ var yyAct = [...]int{
 	365, 419, 399, 430, 120, 437, 122, 404, 0, 160,
 	131, 0, 0, 392, 421, 394, 415, 387, 411, 357,
 	403, 432, 379, 408, 433, 0, 0, 0, 80, 0,
-	868, 869, 0, 0, 0, 0, 0, 96, 0, 406,
+	0, 0, 0, 0, 0, 0, 0, 96, 0, 406,
 	427, 377, 407, 409, 346, 405, 0, 350, 353, 438,
 	423, 372, 373, 0, 0, 0, 0, 0, 0, 0,
 	391, 395, 412, 385, 0, 0, 0, 0, 0, 0,
-	0, 0, 370, 0, 402, 0, 0, 0, 354, 351,
+	1125, 0, 370, 0, 402, 0, 0, 0, 354, 351,
 	0, 0, 389, 0, 0, 0, 356, 0, 371, 413,
 	0, 345, 109, 416, 422, 386, 211, 426, 384, 383,
 	429, 146, 0, 163, 111, 119, 83, 90, 0, 110,
@@ -1096,12 +1110,12 @@ var yyAct = [...]int{
 	410, 352, 396, 139, 378, 0, 369, 347, 375, 348,
 	367, 390, 103, 393, 365, 419, 399, 430, 120, 437,
 	122, 404, 0, 160, 131, 0, 0, 392, 421, 394,
-	415, 387, 411, 357, 403, 432, 379, 408, 433, 54,
-	0, 0, 80, 0, 0, 0, 0, 0, 0, 0,
+	415, 387, 411, 357, 403, 432, 379, 408, 433, 0,
+	0, 0, 270, 0, 0, 0, 0, 0, 0, 0,
 	0, 96, 0, 406, 427, 377, 407, 409, 346, 405,
 	0, 350, 353, 438, 423, 372, 373, 0, 0, 0,
 	0, 0, 0, 0, 391, 395, 412, 385, 0, 0,
-	0, 0, 0, 0, 0, 0, 370, 0, 402, 0,
+	0, 0, 0, 0, 758, 0, 370, 0, 402, 0,
 	0, 0, 354, 351, 0, 0, 389, 0, 0, 0,
 	356, 0, 371, 413, 0, 345, 109, 416, 422, 386,
 	211, 426, 384, 383, 429, 146, 0, 163, 111, 119,
@@ -1127,7 +1141,7 @@ var yyAct = [...]int{
 	0, 0, 0, 0, 0, 96, 0, 406, 427, 377,
 	407, 409, 346, 405, 0, 350, 353, 438, 423, 372,
 	373, 0, 0, 0, 0, 0, 0, 0, 391, 395,
-	412, 385, 0, 0, 0, 0, 0, 0, 1118, 0,
+	412, 385, 0, 0, 0, 0, 0, 0, 0, 0,
 	370, 0, 402, 0, 0, 0, 354, 351, 0, 0,
 	389, 0, 0, 0, 356, 0, 371, 413, 0, 345,
 	109, 416, 422, 386, 211, 426, 384, 383, 429, 146,
@@ -1154,7 +1168,7 @@ var yyAct = [...]int{
 	0, 406, 427, 377, 407, 409, 346, 405, 0, 350,
 	353, 438, 423, 372, 373, 0, 0, 0, 0, 0,
 	0, 0, 391, 395, 412, 385, 0, 0, 0, 0,
-	0, 0, 756, 0, 370, 0, 402, 0, 0, 0,
+	0, 0, 0, 0, 370, 0, 402, 0, 0, 0,
 	354, 351, 0, 0, 389, 0, 0, 0, 356, 0,
 	371, 413, 0, 345, 109, 416, 422, 386, 211, 426,
 	384, 383, 429, 146, 0, 163, 111, 119, 83, 90,
@@ -1189,11 +1203,11 @@ var yyAct = [...]int{
 	123, 168, 147, 175, 183, 184, 165, 182, 191, 84,
 	164, 174, 97, 156, 86, 172, 162, 129, 115, 116,
 	85, 0, 150, 102, 107, 101, 138, 169, 170, 100,
-	194, 91, 181, 88, 92, 180, 136, 167, 173, 130,
+	194, 91, 181, 88, 343, 180, 136, 167, 173, 130,
 	127, 87, 171, 128, 126, 118, 105, 112, 144, 125,
 	145, 113, 133, 132, 134, 0, 349, 0, 161, 178,
 	195, 94, 364, 157, 166, 185, 186, 187, 188, 189,
-	190, 0, 0, 95, 108, 104, 143, 135, 93, 114,
+	190, 0, 0, 95, 108, 104, 143, 344, 342, 114,
 	158, 117, 124, 149, 193, 140, 154, 98, 177, 159,
 	360, 363, 358, 359, 397, 398, 434, 435, 436, 414,
 	355, 0, 361, 362, 0, 418, 424, 425, 400, 82,
@@ -1202,7 +1216,7 @@ var yyAct = [...]int{
 	378, 0, 369, 347, 375, 348, 367, 390, 103, 393,
 	365, 419, 399, 430, 120, 437, 122, 404, 0, 160,
 	131, 0, 0, 392, 421, 394, 415, 387, 411, 357,
-	403, 432, 379, 408, 433, 0, 0, 0, 270, 0,
+	403, 432, 379, 408, 433, 0, 0, 0, 209, 0,
 	0, 0, 0, 0, 0, 0, 0, 96, 0, 406,
 	427, 377, 407, 409, 346, 405, 0, 350, 353, 438,
 	423, 372, 373, 0, 0, 0, 0, 0, 0, 0,
@@ -1239,7 +1253,7 @@ var yyAct = [...]int{
 	211, 426, 384, 383, 429, 146, 0, 163, 111, 119,
 	83, 90, 0, 110, 137, 151, 155, 420, 368, 376,
 	99, 374, 153, 141, 176, 401, 142, 152, 123, 168,
-	147, 175, 183, 184, 165, 182, 191, 84, 164, 174,
+	147, 175, 183, 184, 165, 182, 191, 84, 164, 626,
 	97, 156, 86, 172, 162, 129, 115, 116, 85, 0,
 	150, 102, 107, 101, 138, 169, 170, 100, 194, 91,
 	181, 88, 343, 180, 136, 167, 173, 130, 127, 87,
@@ -1255,7 +1269,7 @@ var yyAct = [...]int{
 	369, 347, 375, 348, 367, 390, 103, 393, 365, 419,
 	399, 430, 120, 437, 122, 404, 0, 160, 131, 0,
 	0, 392, 421, 394, 415, 387, 411, 357, 403, 432,
-	379, 408, 433, 0, 0, 0, 209, 0, 0, 0,
+	379, 408, 433, 0, 0, 0, 80, 0, 0, 0,
 	0, 0, 0, 0, 0, 96, 0, 406, 427, 377,
 	407, 409, 346, 405, 0, 350, 353, 438, 423, 372,
 	373, 0, 0, 0, 0, 0, 0, 0, 391, 395,
@@ -1266,128 +1280,25 @@ var yyAct = [...]int{
 	0, 163, 111, 119, 83, 90, 0, 110, 137, 151,
 	155, 420, 368, 376, 99, 374, 153, 141, 176, 401,
 	142, 152, 123, 168, 147, 175, 183, 184, 165, 182,
-	191, 84, 164, 174, 97, 156, 86, 172, 162, 129,
+	191, 84, 164, 334, 97, 156, 86, 172, 162, 129,
 	115, 116, 85, 0, 150, 102, 107, 101, 138, 169,
-	170, 100, 194, 91, 181, 88, 92, 180, 136, 167,
+	170, 100, 194, 91, 181, 88, 343, 180, 136, 167,
 	173, 130, 127, 87, 171, 128, 126, 118, 105, 112,
 	144, 125, 145, 113, 133, 132, 134, 0, 349, 0,
 	161, 178, 195, 94, 364, 157, 166, 185, 186, 187,
-	188, 189, 190, 0, 0, 95, 108, 104, 143, 135,
-	93, 114, 158, 117, 124, 149, 193, 140, 154, 98,
+	188, 189, 190, 0, 0, 95, 108, 104, 143, 344,
+	342, 337, 336, 117, 124, 149, 193, 140, 154, 98,
 	177, 159, 360, 363, 358, 359, 397, 398, 434, 435,
 	436, 414, 355, 0, 361, 362, 0, 418, 424, 425,
-	400, 82, 89, 121, 192, 148, 106, 179, 428, 417,
-	0, 388, 431, 366, 380, 439, 381, 382, 410, 352,
-	396, 139, 378, 0, 369, 347, 375, 348, 367, 390,
-	103, 393, 365, 419, 399, 430, 120, 437, 122, 404,
-	0, 160, 131, 0, 0, 392, 421, 394, 415, 387,
-	411, 357, 403, 432, 379, 408, 433, 0, 0, 0,
-	80, 0, 0, 0, 0, 0, 0, 0, 0, 96,
-	0, 406, 427, 377, 407, 409, 346, 405, 0, 350,
-	353, 438, 423, 372, 373, 0, 0, 0, 0, 0,
-	0, 0, 391, 395, 412, 385, 0, 0, 0, 0,
-	0, 0, 0, 0, 370, 0, 402, 0, 0, 0,
-	354, 351, 0, 0, 389, 0, 0, 0, 356, 0,
-	371, 413, 0, 345, 109, 416, 422, 386, 211, 426,
-	384, 383, 429, 146, 0, 163, 111, 119, 83, 90,
-	0, 110, 137, 151, 155, 420, 368, 376, 99, 374,
-	153, 141, 176, 401, 142, 152, 123, 168, 147, 175,
-	183, 184, 165, 182, 191, 84, 164, 625, 97, 156,
-	86, 172, 162, 129, 115, 116, 85, 0, 150, 102,
-	107, 101, 138, 169, 170, 100, 194, 91, 181, 88,
-	343, 180, 136, 167, 173, 130, 127, 87, 171, 128,
-	126, 118, 105, 112, 144, 125, 145, 113, 133, 132,
-	134, 0, 349, 0, 161, 178, 195, 94, 364, 157,
-	166, 185, 186, 187, 188, 189, 190, 0, 0, 95,
-	108, 104, 143, 344, 342, 114, 158, 117, 124, 149,
-	193, 140, 154, 98, 177, 159, 360, 363, 358, 359,
-	397, 398, 434, 435, 436, 414, 355, 0, 361, 362,
-	0, 418, 424, 425, 400, 82, 89, 121, 192, 148,
-	106, 179, 428, 417, 0, 388, 431, 366, 380, 439,
-	381, 382, 410, 352, 396, 139, 378, 0, 369, 347,
-	375, 348, 367, 390, 103, 393, 365, 419, 399, 430,
-	120, 437, 122, 404, 0, 160, 131, 0, 0, 392,
-	421, 394, 415, 387, 411, 357, 403, 432, 379, 408,
-	433, 0, 0, 0, 80, 0, 0, 0, 0, 0,
-	0, 0, 0, 96, 0, 406, 427, 377, 407, 409,
-	346, 405, 0, 350, 353, 438, 423, 372, 373, 0,
-	0, 0, 0, 0, 0, 0, 391, 395, 412, 385,
-	0, 0, 0, 0, 0, 0, 0, 0, 370, 0,
-	402, 0, 0, 0, 354, 351, 0, 0, 389, 0,
-	0, 0, 356, 0, 371, 413, 0, 345, 109, 416,
-	422, 386, 211, 426, 384, 383, 429, 146, 0, 163,
-	111, 119, 83, 90, 0, 110, 137, 151, 155, 420,
-	368, 376, 99, 374, 153, 141, 176, 401, 142, 152,
-	123, 168, 147, 175, 183, 184, 165, 182, 191, 84,
-	164, 334, 97, 156, 86, 172, 162, 129, 115, 116,
-	85, 0, 150, 102, 107, 101, 138, 169, 170, 100,
-	194, 91, 181, 88, 343, 180, 136, 167, 173, 130,
-	127, 87, 171, 128, 126, 118, 105, 112, 144, 125,
-	145, 113, 133, 132, 134, 0, 349, 0, 161, 178,
-	195, 94, 364, 157, 166, 185, 186, 187, 188, 189,
-	190, 0, 0, 95, 108, 104, 143, 344, 342, 337,
-	336, 117, 124, 149, 193, 140, 154, 98, 177, 159,
-	360, 363, 358, 359, 397, 398, 434, 435, 436, 414,
-	355, 0, 361, 362, 0, 418, 424, 425, 400, 82,
-	89, 121, 192, 148, 106, 179, 139, 0, 0, 792,
-	0, 272, 0, 0, 0, 103, 0, 269, 0, 0,
-	0, 120, 312, 122, 0, 0, 160, 131, 0, 0,
-	0, 0, 303, 304, 0, 0, 0, 0, 0, 0,
-	0, 0, 54, 0, 0, 270, 291, 290, 293, 294,
-	295, 296, 0, 0, 96, 292, 297, 298, 299, 0,
-	0, 0, 267, 284, 0, 311, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 281, 282, 263, 0, 0,
-	0, 325, 0, 283, 0, 0, 278, 279, 280, 285,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 109,
-	0, 0, 0, 211, 0, 0, 323, 0, 146, 0,
-	163, 111, 119, 83, 90, 0, 110, 137, 151, 155,
-	0, 0, 0, 99, 0, 153, 141, 176, 0, 142,
-	152, 123, 168, 147, 175, 183, 184, 165, 182, 191,
-	84, 164, 174, 97, 156, 86, 172, 162, 129, 115,
-	116, 85, 0, 150, 102, 107, 101, 138, 169, 170,
-	100, 194, 91, 181, 88, 92, 180, 136, 167, 173,
-	130, 127, 87, 171, 128, 126, 118, 105, 112, 144,
-	125, 145, 113, 133, 132, 134, 0, 0, 0, 161,
-	178, 195, 94, 0, 157, 166, 185, 186, 187, 188,
-	189, 190, 0, 0, 95, 108, 104, 143, 135, 93,
-	114, 158, 117, 124, 149, 193, 140, 154, 98, 177,
-	159, 313, 324, 319, 320, 317, 318, 316, 315, 314,
-	326, 305, 306, 307, 308, 310, 0, 321, 322, 309,
-	82, 89, 121, 192, 148, 106, 179, 139, 0, 0,
-	0, 0, 272, 0, 0, 0, 103, 0, 269, 0,
-	0, 0, 120, 312, 122, 0, 0, 160, 131, 0,
-	0, 0, 0, 303, 304, 0, 0, 0, 0, 0,
-	0, 0, 0, 54, 0, 501, 270, 291, 290, 293,
-	294, 295, 296, 0, 0, 96, 292, 297, 298, 299,
-	0, 0, 0, 267, 284, 0, 311, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 281, 282, 0, 0,
-	0, 0, 325, 0, 283, 0, 0, 278, 279, 280,
-	285, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	109, 0, 0, 0, 211, 0, 0, 323, 0, 146,
-	0, 163, 111, 119, 83, 90, 0, 110, 137, 151,
-	155, 0, 0, 0, 99, 0, 153, 141, 176, 0,
-	142, 152, 123, 168, 147, 175, 183, 184, 165, 182,
-	191, 84, 164, 174, 97, 156, 86, 172, 162, 129,
-	115, 116, 85, 0, 150, 102, 107, 101, 138, 169,
-	170, 100, 194, 91, 181, 88, 92, 180, 136, 167,
-	173, 130, 127, 87, 171, 128, 126, 118, 105, 112,
-	144, 125, 145, 113, 133, 132, 134, 0, 0, 0,
-	161, 178, 195, 94, 0, 157, 166, 185, 186, 187,
-	188, 189, 190, 0, 0, 95, 108, 104, 143, 135,
-	93, 114, 158, 117, 124, 149, 193, 140, 154, 98,
-	177, 159, 313, 324, 319, 320, 317, 318, 316, 315,
-	314, 326, 305, 306, 307, 308, 310, 0, 321, 322,
-	309, 82, 89, 121, 192, 148, 106, 179, 139, 0,
+	400, 82, 89, 121, 192, 148, 106, 179, 139, 0,
 	0, 0, 0, 272, 0, 0, 0, 103, 0, 269,
 	0, 0, 0, 120, 312, 122, 0, 0, 160, 131,
 	0, 0, 0, 0, 303, 304, 0, 0, 0, 0,
-	0, 0, 0, 0, 54, 0, 0, 270, 291, 290,
+	0, 0, 861, 0, 54, 0, 0, 270, 291, 290,
 	293, 294, 295, 296, 0, 0, 96, 292, 297, 298,
-	299, 0, 0, 0, 267, 284, 0, 311, 0, 0,
+	299, 862, 0, 0, 267, 284, 0, 311, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 281, 282, 263,
+	0, 0, 0, 0, 0, 0, 0, 281, 282, 0,
 	0, 0, 0, 325, 0, 283, 0, 0, 278, 279,
 	280, 285, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 109, 0, 0, 0, 211, 0, 0, 323, 0,
@@ -1403,12 +1314,37 @@ var yyAct = [...]int{
 	187, 188, 189, 190, 0, 0, 95, 108, 104, 143,
 	135, 93, 114, 158, 117, 124, 149, 193, 140, 154,
 	98, 177, 159, 313, 324, 319, 320, 317, 318, 316,
-	315, 314, 326, 305, 306, 307, 308, 310, 24, 321,
-	322, 309, 82, 89, 121, 192, 148, 106, 179, 0,
+	315, 314, 326, 305, 306, 307, 308, 310, 0, 321,
+	322, 309, 82, 89, 121, 192, 148, 106, 179, 139,
+	0, 0, 794, 0, 272, 0, 0, 0, 103, 0,
+	269, 0, 0, 0, 120, 312, 122, 0, 0, 160,
+	131, 0, 0, 0, 0, 303, 304, 0, 0, 0,
+	0, 0, 0, 0, 0, 54, 0, 0, 270, 291,
+	290, 293, 294, 295, 296, 0, 0, 96, 292, 297,
+	298, 299, 0, 0, 0, 267, 284, 0, 311, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 281, 282,
+	263, 0, 0, 0, 325, 0, 283, 0, 0, 278,
+	279, 280, 285, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 109, 0, 0, 0, 211, 0, 0, 323,
+	0, 146, 0, 163, 111, 119, 83, 90, 0, 110,
+	137, 151, 155, 0, 0, 0, 99, 0, 153, 141,
+	176, 0, 142, 152, 123, 168, 147, 175, 183, 184,
+	165, 182, 191, 84, 164, 174, 97, 156, 86, 172,
+	162, 129, 115, 116, 85, 0, 150, 102, 107, 101,
+	138, 169, 170, 100, 194, 91, 181, 88, 92, 180,
+	136, 167, 173, 130, 127, 87, 171, 128, 126, 118,
+	105, 112, 144, 125, 145, 113, 133, 132, 134, 0,
+	0, 0, 161, 178, 195, 94, 0, 157, 166, 185,
+	186, 187, 188, 189, 190, 0, 0, 95, 108, 104,
+	143, 135, 93, 114, 158, 117, 124, 149, 193, 140,
+	154, 98, 177, 159, 313, 324, 319, 320, 317, 318,
+	316, 315, 314, 326, 305, 306, 307, 308, 310, 0,
+	321, 322, 309, 82, 89, 121, 192, 148, 106, 179,
 	139, 0, 0, 0, 0, 272, 0, 0, 0, 103,
 	0, 269, 0, 0, 0, 120, 312, 122, 0, 0,
 	160, 131, 0, 0, 0, 0, 303, 304, 0, 0,
-	0, 0, 0, 0, 0, 0, 54, 0, 0, 270,
+	0, 0, 0, 0, 0, 0, 54, 0, 502, 270,
 	291, 290, 293, 294, 295, 296, 0, 0, 96, 292,
 	297, 298, 299, 0, 0, 0, 267, 284, 0, 311,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -1438,7 +1374,7 @@ var yyAct = [...]int{
 	292, 297, 298, 299, 0, 0, 0, 267, 284, 0,
 	311, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	281, 282, 0, 0, 0, 0, 325, 0, 283, 0,
+	281, 282, 263, 0, 0, 0, 325, 0, 283, 0,
 	0, 278, 279, 280, 285, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 109, 0, 0, 0, 211, 0,
 	0, 323, 0, 146, 0, 163, 111, 119, 83, 90,
@@ -1454,38 +1390,13 @@ var yyAct = [...]int{
 	108, 104, 143, 135, 93, 114, 158, 117, 124, 149,
 	193, 140, 154, 98, 177, 159, 313, 324, 319, 320,
 	317, 318, 316, 315, 314, 326, 305, 306, 307, 308,
-	310, 0, 321, 322, 309, 82, 89, 121, 192, 148,
-	106, 179, 139, 0, 0, 0, 0, 0, 0, 0,
-	0, 103, 0, 0, 0, 0, 0, 120, 312, 122,
-	0, 0, 160, 131, 0, 0, 0, 0, 303, 304,
-	0, 0, 0, 0, 0, 0, 0, 0, 54, 0,
-	0, 270, 291, 290, 293, 294, 295, 296, 0, 0,
-	96, 292, 297, 298, 299, 0, 0, 0, 0, 284,
-	0, 311, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 281, 282, 0, 0, 0, 0, 325, 0, 283,
-	0, 0, 278, 279, 280, 285, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 109, 0, 0, 0, 211,
-	0, 0, 323, 0, 146, 0, 163, 111, 119, 83,
-	90, 0, 110, 137, 151, 155, 0, 0, 0, 99,
-	0, 153, 141, 176, 1434, 142, 152, 123, 168, 147,
-	175, 183, 184, 165, 182, 191, 84, 164, 174, 97,
-	156, 86, 172, 162, 129, 115, 116, 85, 0, 150,
-	102, 107, 101, 138, 169, 170, 100, 194, 91, 181,
-	88, 92, 180, 136, 167, 173, 130, 127, 87, 171,
-	128, 126, 118, 105, 112, 144, 125, 145, 113, 133,
-	132, 134, 0, 0, 0, 161, 178, 195, 94, 0,
-	157, 166, 185, 186, 187, 188, 189, 190, 0, 0,
-	95, 108, 104, 143, 135, 93, 114, 158, 117, 124,
-	149, 193, 140, 154, 98, 177, 159, 313, 324, 319,
-	320, 317, 318, 316, 315, 314, 326, 305, 306, 307,
-	308, 310, 0, 321, 322, 309, 82, 89, 121, 192,
-	148, 106, 179, 139, 0, 0, 0, 0, 0, 0,
-	0, 0, 103, 0, 0, 0, 0, 0, 120, 312,
+	310, 24, 321, 322, 309, 82, 89, 121, 192, 148,
+	106, 179, 0, 139, 0, 0, 0, 0, 272, 0,
+	0, 0, 103, 0, 269, 0, 0, 0, 120, 312,
 	122, 0, 0, 160, 131, 0, 0, 0, 0, 303,
 	304, 0, 0, 0, 0, 0, 0, 0, 0, 54,
-	0, 501, 270, 291, 290, 293, 294, 295, 296, 0,
-	0, 96, 292, 297, 298, 299, 0, 0, 0, 0,
+	0, 0, 270, 291, 290, 293, 294, 295, 296, 0,
+	0, 96, 292, 297, 298, 299, 0, 0, 0, 267,
 	284, 0, 311, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 281, 282, 0, 0, 0, 0, 325, 0,
@@ -1505,13 +1416,13 @@ var yyAct = [...]int{
 	124, 149, 193, 140, 154, 98, 177, 159, 313, 324,
 	319, 320, 317, 318, 316, 315, 314, 326, 305, 306,
 	307, 308, 310, 0, 321, 322, 309, 82, 89, 121,
-	192, 148, 106, 179, 139, 0, 0, 0, 0, 0,
-	0, 0, 0, 103, 0, 0, 0, 0, 0, 120,
+	192, 148, 106, 179, 139, 0, 0, 0, 0, 272,
+	0, 0, 0, 103, 0, 269, 0, 0, 0, 120,
 	312, 122, 0, 0, 160, 131, 0, 0, 0, 0,
 	303, 304, 0, 0, 0, 0, 0, 0, 0, 0,
 	54, 0, 0, 270, 291, 290, 293, 294, 295, 296,
 	0, 0, 96, 292, 297, 298, 299, 0, 0, 0,
-	0, 284, 0, 311, 0, 0, 0, 0, 0, 0,
+	267, 284, 0, 311, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 281, 282, 0, 0, 0, 0, 325,
 	0, 283, 0, 0, 278, 279, 280, 285, 0, 0,
@@ -1532,18 +1443,18 @@ var yyAct = [...]int{
 	306, 307, 308, 310, 0, 321, 322, 309, 82, 89,
 	121, 192, 148, 106, 179, 139, 0, 0, 0, 0,
 	0, 0, 0, 0, 103, 0, 0, 0, 0, 0,
-	120, 0, 122, 0, 0, 160, 131, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 80, 0, 0, 0, 0, 0,
-	0, 0, 0, 96, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	535, 534, 544, 545, 537, 538, 539, 540, 541, 542,
-	543, 536, 0, 0, 546, 0, 0, 0, 0, 0,
+	120, 312, 122, 0, 0, 160, 131, 0, 0, 0,
+	0, 303, 304, 0, 0, 0, 0, 0, 0, 0,
+	0, 54, 0, 0, 270, 291, 290, 293, 294, 295,
+	296, 0, 0, 96, 292, 297, 298, 299, 0, 0,
+	0, 0, 284, 0, 311, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 281, 282, 0, 0, 0, 0,
+	325, 0, 283, 0, 0, 278, 279, 280, 285, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 109, 0,
-	0, 0, 211, 0, 0, 0, 0, 146, 0, 163,
+	0, 0, 211, 0, 0, 323, 0, 146, 0, 163,
 	111, 119, 83, 90, 0, 110, 137, 151, 155, 0,
-	0, 0, 99, 0, 153, 141, 176, 0, 142, 152,
+	0, 0, 99, 0, 153, 141, 176, 1443, 142, 152,
 	123, 168, 147, 175, 183, 184, 165, 182, 191, 84,
 	164, 174, 97, 156, 86, 172, 162, 129, 115, 116,
 	85, 0, 150, 102, 107, 101, 138, 169, 170, 100,
@@ -1553,20 +1464,20 @@ var yyAct = [...]int{
 	195, 94, 0, 157, 166, 185, 186, 187, 188, 189,
 	190, 0, 0, 95, 108, 104, 143, 135, 93, 114,
 	158, 117, 124, 149, 193, 140, 154, 98, 177, 159,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 82,
+	313, 324, 319, 320, 317, 318, 316, 315, 314, 326,
+	305, 306, 307, 308, 310, 0, 321, 322, 309, 82,
 	89, 121, 192, 148, 106, 179, 139, 0, 0, 0,
-	523, 0, 0, 0, 0, 103, 0, 0, 0, 0,
-	0, 120, 0, 122, 0, 0, 160, 131, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 80, 0, 525, 0, 0,
-	0, 0, 0, 0, 96, 0, 0, 0, 0, 0,
-	520, 519, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 521, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 103, 0, 0, 0, 0,
+	0, 120, 312, 122, 0, 0, 160, 131, 0, 0,
+	0, 0, 303, 304, 0, 0, 0, 0, 0, 0,
+	0, 0, 54, 0, 502, 270, 291, 290, 293, 294,
+	295, 296, 0, 0, 96, 292, 297, 298, 299, 0,
+	0, 0, 0, 284, 0, 311, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 281, 282, 0, 0, 0,
+	0, 325, 0, 283, 0, 0, 278, 279, 280, 285,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 109,
-	0, 0, 0, 211, 0, 0, 0, 0, 146, 0,
+	0, 0, 0, 211, 0, 0, 323, 0, 146, 0,
 	163, 111, 119, 83, 90, 0, 110, 137, 151, 155,
 	0, 0, 0, 99, 0, 153, 141, 176, 0, 142,
 	152, 123, 168, 147, 175, 183, 184, 165, 182, 191,
@@ -1578,21 +1489,47 @@ var yyAct = [...]int{
 	178, 195, 94, 0, 157, 166, 185, 186, 187, 188,
 	189, 190, 0, 0, 95, 108, 104, 143, 135, 93,
 	114, 158, 117, 124, 149, 193, 140, 154, 98, 177,
-	159, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 139, 0,
-	82, 89, 121, 192, 148, 106, 179, 103, 0, 0,
-	0, 0, 0, 120, 0, 122, 0, 0, 160, 131,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 80, 0, 0,
-	0, 0, 0, 0, 0, 0, 96, 0, 0, 0,
-	0, 0, 74, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	159, 313, 324, 319, 320, 317, 318, 316, 315, 314,
+	326, 305, 306, 307, 308, 310, 0, 321, 322, 309,
+	82, 89, 121, 192, 148, 106, 179, 139, 0, 0,
+	0, 0, 0, 0, 0, 0, 103, 0, 0, 0,
+	0, 0, 120, 312, 122, 0, 0, 160, 131, 0,
+	0, 0, 0, 303, 304, 0, 0, 0, 0, 0,
+	0, 0, 0, 54, 0, 0, 270, 291, 290, 293,
+	294, 295, 296, 0, 0, 96, 292, 297, 298, 299,
+	0, 0, 0, 0, 284, 0, 311, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 109, 76, 77, 0, 73, 0, 0, 0, 78,
-	146, 0, 163, 111, 119, 83, 90, 0, 110, 137,
-	151, 155, 0, 0, 0, 99, 0, 153, 141, 176,
+	0, 0, 0, 0, 0, 0, 281, 282, 0, 0,
+	0, 0, 325, 0, 283, 0, 0, 278, 279, 280,
+	285, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	109, 0, 0, 0, 211, 0, 0, 323, 0, 146,
+	0, 163, 111, 119, 83, 90, 0, 110, 137, 151,
+	155, 0, 0, 0, 99, 0, 153, 141, 176, 0,
+	142, 152, 123, 168, 147, 175, 183, 184, 165, 182,
+	191, 84, 164, 174, 97, 156, 86, 172, 162, 129,
+	115, 116, 85, 0, 150, 102, 107, 101, 138, 169,
+	170, 100, 194, 91, 181, 88, 92, 180, 136, 167,
+	173, 130, 127, 87, 171, 128, 126, 118, 105, 112,
+	144, 125, 145, 113, 133, 132, 134, 0, 0, 0,
+	161, 178, 195, 94, 0, 157, 166, 185, 186, 187,
+	188, 189, 190, 0, 0, 95, 108, 104, 143, 135,
+	93, 114, 158, 117, 124, 149, 193, 140, 154, 98,
+	177, 159, 313, 324, 319, 320, 317, 318, 316, 315,
+	314, 326, 305, 306, 307, 308, 310, 0, 321, 322,
+	309, 82, 89, 121, 192, 148, 106, 179, 139, 0,
+	0, 0, 0, 0, 0, 0, 0, 103, 0, 0,
+	0, 0, 0, 120, 0, 122, 0, 0, 160, 131,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 80, 0, 0,
+	0, 0, 0, 0, 0, 0, 96, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 536, 535, 545, 546, 538, 539, 540,
+	541, 542, 543, 544, 537, 0, 0, 547, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 109, 0, 0, 0, 211, 0, 0, 0, 0,
+	146, 0, 163, 111, 119, 83, 90, 0, 110, 137,
+	151, 155, 0, 0, 0, 99, 0, 153, 141, 176,
 	0, 142, 152, 123, 168, 147, 175, 183, 184, 165,
 	182, 191, 84, 164, 174, 97, 156, 86, 172, 162,
 	129, 115, 116, 85, 0, 150, 102, 107, 101, 138,
@@ -1602,17 +1539,17 @@ var yyAct = [...]int{
 	0, 161, 178, 195, 94, 0, 157, 166, 185, 186,
 	187, 188, 189, 190, 0, 0, 95, 108, 104, 143,
 	135, 93, 114, 158, 117, 124, 149, 193, 140, 154,
-	98, 177, 159, 0, 75, 0, 0, 0, 0, 0,
+	98, 177, 159, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 82, 89, 121, 192, 148, 106, 179, 139,
-	0, 0, 0, 846, 0, 0, 0, 0, 103, 0,
+	0, 0, 0, 524, 0, 0, 0, 0, 103, 0,
 	0, 0, 0, 0, 120, 0, 122, 0, 0, 160,
 	131, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 209, 0,
-	848, 0, 0, 0, 0, 0, 0, 96, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 80, 0,
+	526, 0, 0, 0, 0, 0, 0, 96, 0, 0,
+	0, 0, 0, 521, 520, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	522, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 109, 0, 0, 0, 211, 0, 0, 0,
@@ -1627,20 +1564,20 @@ var yyAct = [...]int{
 	0, 0, 161, 178, 195, 94, 0, 157, 166, 185,
 	186, 187, 188, 189, 190, 0, 0, 95, 108, 104,
 	143, 135, 93, 114, 158, 117, 124, 149, 193, 140,
-	154, 98, 177, 159, 0, 0, 0, 0, 0, 24,
+	154, 98, 177, 159, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 139, 0, 82, 89, 121, 192, 148, 106, 179,
 	103, 0, 0, 0, 0, 0, 120, 0, 122, 0,
 	0, 160, 131, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 54, 0, 0,
-	80, 0, 0, 0, 0, 0, 0, 0, 0, 96,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	80, 0, 0, 0, 0, 0, 0, 0, 0, 96,
+	0, 0, 0, 0, 0, 74, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 109, 0, 0, 0, 211, 0,
-	0, 0, 0, 146, 0, 163, 111, 119, 83, 90,
+	0, 0, 0, 0, 109, 76, 77, 0, 73, 0,
+	0, 0, 78, 146, 0, 163, 111, 119, 83, 90,
 	0, 110, 137, 151, 155, 0, 0, 0, 99, 0,
 	153, 141, 176, 0, 142, 152, 123, 168, 147, 175,
 	183, 184, 165, 182, 191, 84, 164, 174, 97, 156,
@@ -1651,135 +1588,14 @@ var yyAct = [...]int{
 	134, 0, 0, 0, 161, 178, 195, 94, 0, 157,
 	166, 185, 186, 187, 188, 189, 190, 0, 0, 95,
 	108, 104, 143, 135, 93, 114, 158, 117, 124, 149,
-	193, 140, 154, 98, 177, 159, 0, 0, 0, 0,
-	0, 24, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 139, 0, 82, 89, 121, 192, 148,
-	106, 179, 103, 0, 0, 0, 0, 0, 120, 0,
-	122, 0, 0, 160, 131, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 54,
-	0, 0, 209, 0, 0, 0, 0, 0, 0, 0,
-	0, 96, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 109, 0, 0, 0,
-	211, 0, 0, 0, 0, 146, 0, 163, 111, 119,
-	83, 90, 0, 110, 137, 151, 155, 0, 0, 0,
-	99, 0, 153, 141, 176, 0, 142, 152, 123, 168,
-	147, 175, 183, 184, 165, 182, 191, 84, 164, 174,
-	97, 156, 86, 172, 162, 129, 115, 116, 85, 0,
-	150, 102, 107, 101, 138, 169, 170, 100, 194, 91,
-	181, 88, 92, 180, 136, 167, 173, 130, 127, 87,
-	171, 128, 126, 118, 105, 112, 144, 125, 145, 113,
-	133, 132, 134, 0, 0, 0, 161, 178, 195, 94,
-	0, 157, 166, 185, 186, 187, 188, 189, 190, 0,
-	0, 95, 108, 104, 143, 135, 93, 114, 158, 117,
-	124, 149, 193, 140, 154, 98, 177, 159, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 82, 89, 121,
-	192, 148, 106, 179, 139, 0, 0, 0, 846, 0,
-	0, 0, 0, 103, 0, 0, 0, 0, 0, 120,
-	0, 122, 0, 0, 160, 131, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 209, 0, 848, 0, 0, 0, 0,
-	0, 0, 96, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 109, 0, 0,
-	0, 211, 0, 0, 0, 0, 146, 0, 163, 111,
-	119, 83, 90, 0, 110, 137, 151, 155, 0, 0,
-	0, 99, 0, 153, 141, 176, 0, 844, 152, 123,
-	168, 147, 175, 183, 184, 165, 182, 191, 84, 164,
-	174, 97, 156, 86, 172, 162, 129, 115, 116, 85,
-	0, 150, 102, 107, 101, 138, 169, 170, 100, 194,
-	91, 181, 88, 92, 180, 136, 167, 173, 130, 127,
-	87, 171, 128, 126, 118, 105, 112, 144, 125, 145,
-	113, 133, 132, 134, 0, 0, 0, 161, 178, 195,
-	94, 0, 157, 166, 185, 186, 187, 188, 189, 190,
-	0, 0, 95, 108, 104, 143, 135, 93, 114, 158,
-	117, 124, 149, 193, 140, 154, 98, 177, 159, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 139, 0, 82, 89,
-	121, 192, 148, 106, 179, 103, 0, 0, 0, 0,
-	0, 120, 0, 122, 0, 0, 160, 131, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 80, 0, 0, 743, 0,
-	0, 744, 0, 0, 96, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 109,
-	0, 0, 0, 211, 0, 0, 0, 0, 146, 0,
-	163, 111, 119, 83, 90, 0, 110, 137, 151, 155,
-	0, 0, 0, 99, 0, 153, 141, 176, 0, 142,
-	152, 123, 168, 147, 175, 183, 184, 165, 182, 191,
-	84, 164, 174, 97, 156, 86, 172, 162, 129, 115,
-	116, 85, 0, 150, 102, 107, 101, 138, 169, 170,
-	100, 194, 91, 181, 88, 92, 180, 136, 167, 173,
-	130, 127, 87, 171, 128, 126, 118, 105, 112, 144,
-	125, 145, 113, 133, 132, 134, 0, 0, 0, 161,
-	178, 195, 94, 0, 157, 166, 185, 186, 187, 188,
-	189, 190, 0, 0, 95, 108, 104, 143, 135, 93,
-	114, 158, 117, 124, 149, 193, 140, 154, 98, 177,
-	159, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 139, 0,
-	82, 89, 121, 192, 148, 106, 179, 103, 0, 634,
-	0, 0, 0, 120, 0, 122, 0, 0, 160, 131,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 80, 0, 633,
-	0, 0, 0, 0, 0, 0, 96, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	193, 140, 154, 98, 177, 159, 0, 75, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 109, 0, 0, 0, 211, 0, 0, 0, 0,
-	146, 0, 163, 111, 119, 83, 90, 0, 110, 137,
-	151, 155, 0, 0, 0, 99, 0, 153, 141, 176,
-	0, 142, 152, 123, 168, 147, 175, 183, 184, 165,
-	182, 191, 84, 164, 174, 97, 156, 86, 172, 162,
-	129, 115, 116, 85, 0, 150, 102, 107, 101, 138,
-	169, 170, 100, 194, 91, 181, 88, 92, 180, 136,
-	167, 173, 130, 127, 87, 171, 128, 126, 118, 105,
-	112, 144, 125, 145, 113, 133, 132, 134, 0, 0,
-	0, 161, 178, 195, 94, 0, 157, 166, 185, 186,
-	187, 188, 189, 190, 0, 0, 95, 108, 104, 143,
-	135, 93, 114, 158, 117, 124, 149, 193, 140, 154,
-	98, 177, 159, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	139, 0, 82, 89, 121, 192, 148, 106, 179, 103,
-	0, 0, 0, 0, 0, 120, 0, 122, 0, 0,
-	160, 131, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 54, 0, 0, 209,
-	0, 0, 0, 0, 0, 0, 0, 0, 96, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 109, 0, 0, 0, 211, 0, 0,
-	0, 0, 146, 0, 163, 111, 119, 83, 90, 0,
-	110, 137, 151, 155, 0, 0, 0, 99, 0, 153,
-	141, 176, 0, 142, 152, 123, 168, 147, 175, 183,
-	184, 165, 182, 191, 84, 164, 174, 97, 156, 86,
-	172, 162, 129, 115, 116, 85, 0, 150, 102, 107,
-	101, 138, 169, 170, 100, 194, 91, 181, 88, 92,
-	180, 136, 167, 173, 130, 127, 87, 171, 128, 126,
-	118, 105, 112, 144, 125, 145, 113, 133, 132, 134,
-	0, 0, 0, 161, 178, 195, 94, 0, 157, 166,
-	185, 186, 187, 188, 189, 190, 0, 0, 95, 108,
-	104, 143, 135, 93, 114, 158, 117, 124, 149, 193,
-	140, 154, 98, 177, 159, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 139, 0, 82, 89, 121, 192, 148, 106,
-	179, 103, 0, 0, 0, 0, 0, 120, 0, 122,
+	0, 0, 0, 0, 0, 82, 89, 121, 192, 148,
+	106, 179, 139, 0, 0, 0, 848, 0, 0, 0,
+	0, 103, 0, 0, 0, 0, 0, 120, 0, 122,
 	0, 0, 160, 131, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 209, 0, 848, 0, 0, 0, 0, 0, 0,
+	0, 209, 0, 850, 0, 0, 0, 0, 0, 0,
 	96, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -1798,12 +1614,12 @@ var yyAct = [...]int{
 	157, 166, 185, 186, 187, 188, 189, 190, 0, 0,
 	95, 108, 104, 143, 135, 93, 114, 158, 117, 124,
 	149, 193, 140, 154, 98, 177, 159, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 24, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 139, 0, 82, 89, 121, 192,
 	148, 106, 179, 103, 0, 0, 0, 0, 0, 120,
 	0, 122, 0, 0, 160, 131, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 270, 0, 808, 0, 0, 0, 0,
+	54, 0, 0, 80, 0, 0, 0, 0, 0, 0,
 	0, 0, 96, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -1822,12 +1638,12 @@ var yyAct = [...]int{
 	94, 0, 157, 166, 185, 186, 187, 188, 189, 190,
 	0, 0, 95, 108, 104, 143, 135, 93, 114, 158,
 	117, 124, 149, 193, 140, 154, 98, 177, 159, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 24, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 139, 0, 82, 89,
 	121, 192, 148, 106, 179, 103, 0, 0, 0, 0,
 	0, 120, 0, 122, 0, 0, 160, 131, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 270, 0, 804, 0, 0,
+	0, 0, 54, 0, 0, 209, 0, 0, 0, 0,
 	0, 0, 0, 0, 96, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -1847,36 +1663,61 @@ var yyAct = [...]int{
 	189, 190, 0, 0, 95, 108, 104, 143, 135, 93,
 	114, 158, 117, 124, 149, 193, 140, 154, 98, 177,
 	159, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 139, 0,
-	82, 89, 121, 192, 148, 106, 179, 103, 0, 0,
-	0, 0, 0, 120, 0, 122, 0, 0, 160, 131,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 80, 0, 525,
-	0, 0, 0, 0, 0, 0, 96, 0, 0, 0,
+	82, 89, 121, 192, 148, 106, 179, 139, 0, 0,
+	0, 848, 0, 0, 0, 0, 103, 0, 0, 0,
+	0, 0, 120, 0, 122, 0, 0, 160, 131, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 209, 0, 850, 0,
+	0, 0, 0, 0, 0, 96, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 109, 0, 0, 0, 211, 0, 0, 0, 0,
-	146, 0, 163, 111, 119, 83, 90, 0, 110, 137,
-	151, 155, 0, 0, 0, 99, 0, 153, 141, 176,
-	0, 142, 152, 123, 168, 147, 175, 183, 184, 165,
-	182, 191, 84, 164, 174, 97, 156, 86, 172, 162,
-	129, 115, 116, 85, 0, 150, 102, 107, 101, 138,
-	169, 170, 100, 194, 91, 181, 88, 92, 180, 136,
-	167, 173, 130, 127, 87, 171, 128, 126, 118, 105,
-	112, 144, 125, 145, 113, 133, 132, 134, 0, 0,
-	0, 161, 178, 195, 94, 0, 157, 166, 185, 186,
-	187, 188, 189, 190, 0, 0, 95, 108, 104, 143,
-	135, 93, 114, 158, 117, 124, 149, 193, 140, 154,
-	98, 177, 159, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 139, 82, 89, 121, 192, 148, 106, 179, 607,
-	103, 0, 0, 0, 0, 0, 120, 0, 122, 0,
+	109, 0, 0, 0, 211, 0, 0, 0, 0, 146,
+	0, 163, 111, 119, 83, 90, 0, 110, 137, 151,
+	155, 0, 0, 0, 99, 0, 153, 141, 176, 0,
+	846, 152, 123, 168, 147, 175, 183, 184, 165, 182,
+	191, 84, 164, 174, 97, 156, 86, 172, 162, 129,
+	115, 116, 85, 0, 150, 102, 107, 101, 138, 169,
+	170, 100, 194, 91, 181, 88, 92, 180, 136, 167,
+	173, 130, 127, 87, 171, 128, 126, 118, 105, 112,
+	144, 125, 145, 113, 133, 132, 134, 0, 0, 0,
+	161, 178, 195, 94, 0, 157, 166, 185, 186, 187,
+	188, 189, 190, 0, 0, 95, 108, 104, 143, 135,
+	93, 114, 158, 117, 124, 149, 193, 140, 154, 98,
+	177, 159, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 139,
+	0, 82, 89, 121, 192, 148, 106, 179, 103, 0,
+	0, 0, 0, 0, 120, 0, 122, 0, 0, 160,
+	131, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 80, 0,
+	0, 745, 0, 0, 746, 0, 0, 96, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 109, 0, 0, 0, 211, 0, 0, 0,
+	0, 146, 0, 163, 111, 119, 83, 90, 0, 110,
+	137, 151, 155, 0, 0, 0, 99, 0, 153, 141,
+	176, 0, 142, 152, 123, 168, 147, 175, 183, 184,
+	165, 182, 191, 84, 164, 174, 97, 156, 86, 172,
+	162, 129, 115, 116, 85, 0, 150, 102, 107, 101,
+	138, 169, 170, 100, 194, 91, 181, 88, 92, 180,
+	136, 167, 173, 130, 127, 87, 171, 128, 126, 118,
+	105, 112, 144, 125, 145, 113, 133, 132, 134, 0,
+	0, 0, 161, 178, 195, 94, 0, 157, 166, 185,
+	186, 187, 188, 189, 190, 0, 0, 95, 108, 104,
+	143, 135, 93, 114, 158, 117, 124, 149, 193, 140,
+	154, 98, 177, 159, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 139, 0, 82, 89, 121, 192, 148, 106, 179,
+	103, 0, 635, 0, 0, 0, 120, 0, 122, 0,
 	0, 160, 131, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	209, 0, 0, 0, 0, 0, 0, 0, 0, 96,
+	80, 0, 634, 0, 0, 0, 0, 0, 0, 96,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -1895,11 +1736,11 @@ var yyAct = [...]int{
 	166, 185, 186, 187, 188, 189, 190, 0, 0, 95,
 	108, 104, 143, 135, 93, 114, 158, 117, 124, 149,
 	193, 140, 154, 98, 177, 159, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 329, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 139, 0, 82, 89, 121, 192, 148,
 	106, 179, 103, 0, 0, 0, 0, 0, 120, 0,
 	122, 0, 0, 160, 131, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 54,
 	0, 0, 209, 0, 0, 0, 0, 0, 0, 0,
 	0, 96, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -1924,14 +1765,14 @@ var yyAct = [...]int{
 	192, 148, 106, 179, 103, 0, 0, 0, 0, 0,
 	120, 0, 122, 0, 0, 160, 131, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 209, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 209, 0, 850, 0, 0, 0,
 	0, 0, 0, 96, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 109, 0,
-	206, 0, 211, 0, 0, 0, 0, 146, 0, 163,
+	0, 0, 211, 0, 0, 0, 0, 146, 0, 163,
 	111, 119, 83, 90, 0, 110, 137, 151, 155, 0,
 	0, 0, 99, 0, 153, 141, 176, 0, 142, 152,
 	123, 168, 147, 175, 183, 184, 165, 182, 191, 84,
@@ -1948,7 +1789,7 @@ var yyAct = [...]int{
 	89, 121, 192, 148, 106, 179, 103, 0, 0, 0,
 	0, 0, 120, 0, 122, 0, 0, 160, 131, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 80, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 270, 0, 810, 0,
 	0, 0, 0, 0, 0, 96, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -1972,8 +1813,8 @@ var yyAct = [...]int{
 	0, 82, 89, 121, 192, 148, 106, 179, 103, 0,
 	0, 0, 0, 0, 120, 0, 122, 0, 0, 160,
 	131, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 209, 0,
-	0, 0, 0, 0, 0, 0, 0, 96, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 270, 0,
+	806, 0, 0, 0, 0, 0, 0, 96, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -1997,7 +1838,7 @@ var yyAct = [...]int{
 	103, 0, 0, 0, 0, 0, 120, 0, 122, 0,
 	0, 160, 131, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	270, 0, 0, 0, 0, 0, 0, 0, 0, 96,
+	80, 0, 526, 0, 0, 0, 0, 0, 0, 96,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -2017,19 +1858,165 @@ var yyAct = [...]int{
 	108, 104, 143, 135, 93, 114, 158, 117, 124, 149,
 	193, 140, 154, 98, 177, 159, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 82, 89, 121, 192, 148,
-	106, 179,
+	0, 0, 0, 0, 139, 82, 89, 121, 192, 148,
+	106, 179, 608, 103, 0, 0, 0, 0, 0, 120,
+	0, 122, 0, 0, 160, 131, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 209, 0, 0, 0, 0, 0, 0,
+	0, 0, 96, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 109, 0, 0,
+	0, 211, 0, 0, 0, 0, 146, 0, 163, 111,
+	119, 83, 90, 0, 110, 137, 151, 155, 0, 0,
+	0, 99, 0, 153, 141, 176, 0, 142, 152, 123,
+	168, 147, 175, 183, 184, 165, 182, 191, 84, 164,
+	174, 97, 156, 86, 172, 162, 129, 115, 116, 85,
+	0, 150, 102, 107, 101, 138, 169, 170, 100, 194,
+	91, 181, 88, 92, 180, 136, 167, 173, 130, 127,
+	87, 171, 128, 126, 118, 105, 112, 144, 125, 145,
+	113, 133, 132, 134, 0, 0, 0, 161, 178, 195,
+	94, 0, 157, 166, 185, 186, 187, 188, 189, 190,
+	0, 0, 95, 108, 104, 143, 135, 93, 114, 158,
+	117, 124, 149, 193, 140, 154, 98, 177, 159, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 329,
+	0, 0, 0, 0, 0, 0, 139, 0, 82, 89,
+	121, 192, 148, 106, 179, 103, 0, 0, 0, 0,
+	0, 120, 0, 122, 0, 0, 160, 131, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 209, 0, 0, 0, 0,
+	0, 0, 0, 0, 96, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 109,
+	0, 0, 0, 211, 0, 0, 0, 0, 146, 0,
+	163, 111, 119, 83, 90, 0, 110, 137, 151, 155,
+	0, 0, 0, 99, 0, 153, 141, 176, 0, 142,
+	152, 123, 168, 147, 175, 183, 184, 165, 182, 191,
+	84, 164, 174, 97, 156, 86, 172, 162, 129, 115,
+	116, 85, 0, 150, 102, 107, 101, 138, 169, 170,
+	100, 194, 91, 181, 88, 92, 180, 136, 167, 173,
+	130, 127, 87, 171, 128, 126, 118, 105, 112, 144,
+	125, 145, 113, 133, 132, 134, 0, 0, 0, 161,
+	178, 195, 94, 0, 157, 166, 185, 186, 187, 188,
+	189, 190, 0, 0, 95, 108, 104, 143, 135, 93,
+	114, 158, 117, 124, 149, 193, 140, 154, 98, 177,
+	159, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 139, 0,
+	82, 89, 121, 192, 148, 106, 179, 103, 0, 0,
+	0, 0, 0, 120, 0, 122, 0, 0, 160, 131,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 209, 0, 0,
+	0, 0, 0, 0, 0, 0, 96, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 109, 0, 206, 0, 211, 0, 0, 0, 0,
+	146, 0, 163, 111, 119, 83, 90, 0, 110, 137,
+	151, 155, 0, 0, 0, 99, 0, 153, 141, 176,
+	0, 142, 152, 123, 168, 147, 175, 183, 184, 165,
+	182, 191, 84, 164, 174, 97, 156, 86, 172, 162,
+	129, 115, 116, 85, 0, 150, 102, 107, 101, 138,
+	169, 170, 100, 194, 91, 181, 88, 92, 180, 136,
+	167, 173, 130, 127, 87, 171, 128, 126, 118, 105,
+	112, 144, 125, 145, 113, 133, 132, 134, 0, 0,
+	0, 161, 178, 195, 94, 0, 157, 166, 185, 186,
+	187, 188, 189, 190, 0, 0, 95, 108, 104, 143,
+	135, 93, 114, 158, 117, 124, 149, 193, 140, 154,
+	98, 177, 159, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	139, 0, 82, 89, 121, 192, 148, 106, 179, 103,
+	0, 0, 0, 0, 0, 120, 0, 122, 0, 0,
+	160, 131, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 80,
+	0, 0, 0, 0, 0, 0, 0, 0, 96, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 109, 0, 0, 0, 211, 0, 0,
+	0, 0, 146, 0, 163, 111, 119, 83, 90, 0,
+	110, 137, 151, 155, 0, 0, 0, 99, 0, 153,
+	141, 176, 0, 142, 152, 123, 168, 147, 175, 183,
+	184, 165, 182, 191, 84, 164, 174, 97, 156, 86,
+	172, 162, 129, 115, 116, 85, 0, 150, 102, 107,
+	101, 138, 169, 170, 100, 194, 91, 181, 88, 92,
+	180, 136, 167, 173, 130, 127, 87, 171, 128, 126,
+	118, 105, 112, 144, 125, 145, 113, 133, 132, 134,
+	0, 0, 0, 161, 178, 195, 94, 0, 157, 166,
+	185, 186, 187, 188, 189, 190, 0, 0, 95, 108,
+	104, 143, 135, 93, 114, 158, 117, 124, 149, 193,
+	140, 154, 98, 177, 159, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 139, 0, 82, 89, 121, 192, 148, 106,
+	179, 103, 0, 0, 0, 0, 0, 120, 0, 122,
+	0, 0, 160, 131, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 209, 0, 0, 0, 0, 0, 0, 0, 0,
+	96, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 109, 0, 0, 0, 211,
+	0, 0, 0, 0, 146, 0, 163, 111, 119, 83,
+	90, 0, 110, 137, 151, 155, 0, 0, 0, 99,
+	0, 153, 141, 176, 0, 142, 152, 123, 168, 147,
+	175, 183, 184, 165, 182, 191, 84, 164, 174, 97,
+	156, 86, 172, 162, 129, 115, 116, 85, 0, 150,
+	102, 107, 101, 138, 169, 170, 100, 194, 91, 181,
+	88, 92, 180, 136, 167, 173, 130, 127, 87, 171,
+	128, 126, 118, 105, 112, 144, 125, 145, 113, 133,
+	132, 134, 0, 0, 0, 161, 178, 195, 94, 0,
+	157, 166, 185, 186, 187, 188, 189, 190, 0, 0,
+	95, 108, 104, 143, 135, 93, 114, 158, 117, 124,
+	149, 193, 140, 154, 98, 177, 159, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 139, 0, 82, 89, 121, 192,
+	148, 106, 179, 103, 0, 0, 0, 0, 0, 120,
+	0, 122, 0, 0, 160, 131, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 270, 0, 0, 0, 0, 0, 0,
+	0, 0, 96, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 109, 0, 0,
+	0, 211, 0, 0, 0, 0, 146, 0, 163, 111,
+	119, 83, 90, 0, 110, 137, 151, 155, 0, 0,
+	0, 99, 0, 153, 141, 176, 0, 142, 152, 123,
+	168, 147, 175, 183, 184, 165, 182, 191, 84, 164,
+	174, 97, 156, 86, 172, 162, 129, 115, 116, 85,
+	0, 150, 102, 107, 101, 138, 169, 170, 100, 194,
+	91, 181, 88, 92, 180, 136, 167, 173, 130, 127,
+	87, 171, 128, 126, 118, 105, 112, 144, 125, 145,
+	113, 133, 132, 134, 0, 0, 0, 161, 178, 195,
+	94, 0, 157, 166, 185, 186, 187, 188, 189, 190,
+	0, 0, 95, 108, 104, 143, 135, 93, 114, 158,
+	117, 124, 149, 193, 140, 154, 98, 177, 159, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 82, 89,
+	121, 192, 148, 106, 179,
 }
 var yyPact = [...]int{
 
-	1674, -1000, -192, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
+	2484, -1000, -188, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
+	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
+	-1000, -1000, 932, 962, -1000, -1000, -1000, -1000, -1000, -1000,
+	241, 8473, 33, 123, 15, 11880, 122, 1724, 12364, -1000,
+	3, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -69, -70,
+	-1000, 727, -1000, -1000, -1000, -1000, -1000, 925, 928, 773,
+	916, 834, -1000, 6473, 90, 90, 11638, 5469, -1000, -1000,
+	259, 12364, 119, 12364, -152, 84, 84, 84, -1000, -1000,
 	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
-	-1000, -1000, 847, 897, -1000, -1000, -1000, -1000, -1000, -1000,
-	333, 8610, 35, 116, -6, 12017, 113, 212, 12501, -1000,
-	7, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -82, -88,
-	-1000, 630, -1000, -1000, -1000, -1000, -1000, 840, 843, 703,
-	835, 746, -1000, 6610, 81, 81, 11775, 5857, -1000, -1000,
-	265, 12501, 108, 12501, -148, 74, 74, 74, -1000, -1000,
 	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
 	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
 	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
@@ -2040,23 +2027,23 @@ var yyPact = [...]int{
 	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
 	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
 	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
+	-1000, -1000, -1000, -1000, -1000, -1000, 121, 12364, 340, -1000,
+	12364, 83, 621, 83, 83, 83, 12364, -1000, 156, -1000,
+	-1000, -1000, 12364, 611, 881, 3357, 47, 3357, 3357, -1000,
+	3357, 3357, -1000, 3357, 9, 3357, -75, 942, -1000, -1000,
+	-1000, -1000, -17, -1000, 3357, -1000, -1000, -1000, -1000, -1000,
+	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 551, 884,
+	6976, 6976, 932, -1000, 727, -1000, -1000, -1000, 873, -1000,
+	-1000, 402, 949, -1000, 8231, 154, -1000, 6976, 1991, 726,
+	-1000, -1000, 726, -1000, -1000, 142, -1000, -1000, 7729, 7729,
+	7729, 7729, 7729, 7729, 7729, 7729, -1000, -1000, -1000, -1000,
 	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
-	-1000, -1000, -1000, -1000, -1000, -1000, 111, 12501, 237, -1000,
-	12501, 64, 547, 64, 64, 64, 12501, -1000, 160, -1000,
-	-1000, -1000, 12501, 536, 797, 3745, 49, 3745, 3745, -1000,
-	3745, 3745, -1000, 3745, 16, 3745, -58, 857, -1000, -1000,
-	-1000, -1000, -35, -1000, 3745, -1000, -1000, -1000, -1000, -1000,
-	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 467, 807,
-	7113, 7113, 847, -1000, 630, -1000, -1000, -1000, 789, -1000,
-	-1000, 336, 864, -1000, 8368, 155, -1000, 7113, 2080, 599,
-	-1000, -1000, 599, -1000, -1000, 149, -1000, -1000, 7866, 7866,
-	7866, 7866, 7866, 7866, 7866, 7866, -1000, -1000, -1000, -1000,
+	726, -1000, 6725, 726, 726, 726, 726, 726, 726, 726,
+	726, 6976, 726, 726, 726, 726, 726, 726, 726, 726,
+	726, 726, 726, 726, 726, 726, 726, 11396, 10185, 12364,
+	666, -1000, 717, 5205, -126, -1000, -1000, -1000, 260, 9943,
+	-1000, -1000, -1000, 874, -1000, -1000, -1000, -1000, -1000, -1000,
 	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
-	599, -1000, 6862, 599, 599, 599, 599, 599, 599, 599,
-	599, 7113, 599, 599, 599, 599, 599, 599, 599, 599,
-	599, 599, 599, 599, 599, 599, 599, 11533, 10322, 12501,
-	619, -1000, 647, 5593, -122, -1000, -1000, -1000, 251, 10080,
-	-1000, -1000, -1000, 792, -1000, -1000, -1000, -1000, -1000, -1000,
 	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
 	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
 	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
@@ -2065,131 +2052,131 @@ var yyPact = [...]int{
 	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
 	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
 	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
+	620, 12364, -1000, 2276, -1000, 596, 3357, 107, 580, 335,
+	563, 12364, 12364, 3357, 16, 51, 108, 12364, 722, 101,
+	12364, 911, 789, 12364, 540, 538, -1000, 4941, -1000, 3357,
+	3357, -1000, -1000, -1000, 3357, 3357, 3357, 12364, 3357, 3357,
+	-1000, -1000, -1000, -1000, -1000, 3357, 3357, -1000, 947, 292,
+	-1000, -1000, -1000, -1000, 6976, -1000, 788, 787, -1000, -1000,
+	-1000, -1000, -1000, -1000, 957, 194, 608, 151, 721, -1000,
+	448, 925, 551, 834, 9701, 807, -1000, -1000, 12364, -1000,
+	6976, 6976, 346, -1000, 11153, -1000, -1000, 3885, 195, 7729,
+	405, 207, 7729, 7729, 7729, 7729, 7729, 7729, 7729, 7729,
+	7729, 7729, 7729, 7729, 7729, 7729, 7729, 452, -1000, -1000,
+	-1000, -1000, -1000, -1000, -1000, -1000, 536, -1000, 727, 757,
+	757, 171, 171, 171, 171, 171, 171, 171, 7980, 5971,
+	551, 616, 352, 6725, 6473, 6473, 6976, 6976, 10911, 10669,
+	6473, 919, 326, 352, 12606, -1000, -1000, 7478, -1000, -1000,
+	-1000, -1000, -1000, 551, -1000, -1000, -1000, -1000, -1000, -1000,
+	-1000, 12122, 12122, 6473, 6473, 6473, 6473, 30, 12364, -1000,
+	683, 821, -1000, -1000, -1000, 913, 9208, 9459, 30, 663,
+	10185, 12364, -1000, -1000, 4677, 717, -126, 708, -1000, -124,
+	-131, 5720, 169, -1000, -1000, -1000, -1000, 3093, 289, 650,
+	343, -51, -1000, -1000, -1000, 743, -1000, 743, 743, 743,
+	743, -23, -23, -23, -23, -1000, -1000, -1000, -1000, -1000,
+	767, 759, -1000, 743, 743, 743, -1000, -1000, -1000, -1000,
 	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
-	544, 12501, -1000, 1469, -1000, 518, 3745, 87, 510, 289,
-	508, 12501, 12501, 3745, 24, 57, 110, 12501, 651, 83,
-	12501, 823, 714, 12501, 506, 480, -1000, 5329, -1000, 3745,
-	3745, -1000, -1000, -1000, 3745, 3745, 3745, 12501, 3745, 3745,
-	-1000, -1000, -1000, -1000, -1000, 3745, 3745, -1000, 863, 312,
-	-1000, -1000, -1000, -1000, 7113, -1000, 713, -1000, -1000, -1000,
-	-1000, -1000, -1000, 888, 199, 447, 152, 650, -1000, 276,
-	840, 467, 746, 9838, 724, -1000, -1000, 12501, -1000, 7113,
-	7113, 415, -1000, 11290, -1000, -1000, 4273, 203, 7866, 370,
-	270, 7866, 7866, 7866, 7866, 7866, 7866, 7866, 7866, 7866,
-	7866, 7866, 7866, 7866, 7866, 7866, 389, -1000, -1000, -1000,
-	-1000, -1000, -1000, -1000, -1000, 472, -1000, 630, 511, 511,
-	177, 177, 177, 177, 177, 177, 177, 8117, 6108, 467,
-	542, 349, 6862, 6610, 6610, 7113, 7113, 11048, 10806, 6610,
-	829, 278, 349, 12743, -1000, -1000, 7615, -1000, -1000, -1000,
-	-1000, -1000, 467, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
-	12259, 12259, 6610, 6610, 6610, 6610, 38, 12501, -1000, 584,
-	689, -1000, -1000, -1000, 827, 9345, 9596, 38, 558, 10322,
-	12501, -1000, -1000, 5065, 647, -122, 618, -1000, -114, -105,
-	2940, 167, -1000, -1000, -1000, -1000, 3481, 213, 551, 381,
-	-74, -1000, -1000, -1000, 667, -1000, 667, 667, 667, 667,
-	-24, -24, -24, -24, -1000, -1000, -1000, -1000, -1000, 693,
-	692, -1000, 667, 667, 667, -1000, -1000, -1000, -1000, -1000,
+	-1000, -1000, -1000, -1000, 755, 755, 755, 749, 749, 770,
+	-1000, 12364, 3357, 889, 3357, -1000, 235, -1000, 12122, 12122,
+	12364, 12364, 218, 12364, 12364, 716, -1000, 12364, 3357, -1000,
 	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
-	-1000, -1000, -1000, 691, 691, 691, 669, 669, 700, -1000,
-	12501, 3745, 812, 3745, -1000, 79, -1000, 12259, 12259, 12501,
-	12501, 127, 12501, 12501, 641, -1000, 12501, 3745, -1000, -1000,
+	-1000, -1000, -1000, -1000, 12364, 295, 12364, 12364, 352, 12364,
+	12364, -1000, 840, 6976, 6976, 4413, 6976, -1000, -1000, -1000,
+	884, -1000, 919, 930, -1000, 867, 862, 6473, -1000, -1000,
+	195, 229, -1000, -1000, 381, -1000, -1000, -1000, -1000, 150,
+	726, -1000, 2255, -1000, -1000, -1000, -1000, 405, 7729, 7729,
+	7729, 92, 2255, 2239, 547, 395, 171, 454, 454, 178,
+	178, 178, 178, 178, 445, 445, -1000, -1000, -1000, 551,
+	-1000, -1000, -1000, 551, 6473, 715, -1000, -1000, 6976, -1000,
+	551, 604, 604, 393, 321, 713, 711, -1000, 149, 709,
+	706, 604, 6473, 270, -1000, 6976, 551, -1000, 478, 714,
+	710, 604, 551, 604, 604, 681, 726, -1000, 12606, 10185,
+	10185, 10185, 10185, 10185, -1000, 819, 817, -1000, 804, 801,
+	812, 12364, -1000, 606, 9208, 183, 726, -1000, 10427, -1000,
+	-1000, 938, 10185, 674, -1000, -1000, 708, -126, -93, -1000,
+	-1000, -1000, -1000, 352, -1000, 457, 701, 2817, -1000, -1000,
+	-1000, -1000, -1000, -1000, -1000, 753, 530, -1000, 904, 208,
+	213, 508, 903, -1000, -1000, -1000, 885, -1000, 377, -54,
+	-1000, -1000, 444, -23, -23, -1000, -1000, 169, 872, 169,
+	169, 169, 477, 477, -1000, -1000, -1000, -1000, 425, -1000,
+	-1000, -1000, 424, -1000, 785, 12122, 3357, -1000, -1000, -1000,
+	-1000, 182, 182, 201, -1000, -1000, -1000, -1000, -1000, -1000,
+	-1000, -1000, -1000, -1000, -1000, 29, 769, -1000, -1000, -1000,
+	48, 40, 12606, 99, -1000, 3357, -1000, 292, -1000, 472,
+	6976, -1000, -1000, -1000, -1000, 838, 352, 352, 148, -1000,
+	-1000, 12364, -1000, -1000, -1000, -1000, 696, -1000, -1000, -1000,
+	3621, 6473, -1000, 92, 2255, 1665, -1000, 7729, 7729, -1000,
+	-1000, 604, 6473, 352, -1000, -1000, -1000, 69, 452, 69,
+	7729, 7729, 7729, 7729, 4413, 7729, 7729, 7729, 7729, -166,
+	688, 263, -1000, 6976, 519, -1000, -1000, 7729, 7729, -1000,
+	-1000, -1000, -1000, 784, 12606, 726, -1000, 8966, 12122, 686,
+	-1000, 242, 821, 758, 783, 1353, -1000, -1000, -1000, -1000,
+	805, -1000, 802, -1000, -1000, -1000, -1000, -1000, 118, 116,
+	113, 12122, -1000, 932, 6976, 674, -1000, -1000, -1000, -133,
+	-139, -1000, -1000, -1000, 3093, -1000, 3093, 12122, 66, -1000,
+	508, 508, -1000, -1000, -1000, 752, 776, 7729, -1000, -1000,
+	-1000, 627, 169, 169, -1000, 237, -1000, -1000, -1000, 602,
+	-1000, 584, 700, 578, 12364, -1000, -1000, -1000, -1000, -1000,
 	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
-	-1000, -1000, -1000, 12501, 298, 12501, 12501, 349, 12501, -1000,
-	770, 7113, 7113, 4801, 7113, -1000, -1000, -1000, 807, -1000,
-	829, 841, -1000, 783, 780, 6610, -1000, -1000, 203, 285,
-	-1000, -1000, 425, -1000, -1000, -1000, -1000, 148, 599, -1000,
-	2095, -1000, -1000, -1000, -1000, 370, 7866, 7866, 7866, 702,
-	2095, 2006, 457, 1487, 177, 176, 176, 214, 214, 214,
-	214, 214, 282, 282, -1000, -1000, -1000, 467, -1000, -1000,
-	-1000, 467, 6610, 635, -1000, -1000, 7113, -1000, 467, 534,
-	534, 384, 378, 665, 664, -1000, 146, 638, 624, 534,
-	6610, 297, -1000, 7113, 467, -1000, 1661, 634, 622, 534,
-	467, 534, 534, 682, 599, -1000, 12743, 10322, 10322, 10322,
-	10322, 10322, -1000, 739, 738, -1000, 736, 726, 779, 12501,
-	-1000, 540, 9345, 178, 599, -1000, 10564, -1000, -1000, 856,
-	10322, 603, -1000, -1000, 618, -122, -108, -1000, -1000, -1000,
-	-1000, 349, -1000, 440, 613, 3217, -1000, -1000, -1000, -1000,
-	-1000, -1000, -1000, 676, 468, -1000, 814, 192, 229, 456,
-	813, -1000, -1000, -1000, 804, -1000, 296, -76, -1000, -1000,
-	403, -24, -24, -1000, -1000, 167, 788, 167, 167, 167,
-	448, 448, -1000, -1000, -1000, -1000, 400, -1000, -1000, -1000,
-	399, -1000, 712, 12259, 3745, -1000, -1000, -1000, -1000, 166,
-	166, 215, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
-	-1000, -1000, -1000, 37, 697, -1000, -1000, -1000, 22, 20,
-	80, -1000, 3745, -1000, 312, -1000, 446, 7113, -1000, -1000,
-	-1000, 754, 349, 349, 141, -1000, -1000, 12501, -1000, -1000,
-	-1000, -1000, 623, -1000, -1000, -1000, 4009, 6610, -1000, 702,
-	2095, 1939, -1000, 7866, 7866, -1000, -1000, 534, 6610, 349,
-	-1000, -1000, -1000, 70, 389, 70, 7866, 7866, 7866, 7866,
-	4801, 7866, 7866, 7866, 7866, -159, 597, 263, -1000, 7113,
-	409, -1000, -1000, 7866, 7866, -1000, -1000, -1000, -1000, 711,
-	12743, 599, -1000, 9103, 12259, 607, -1000, 249, 689, 688,
-	710, 598, -1000, -1000, -1000, -1000, 729, -1000, 728, -1000,
-	-1000, -1000, -1000, -1000, 103, 101, 93, 12259, -1000, 847,
-	7113, 603, -1000, -1000, -1000, -129, -131, -1000, -1000, -1000,
-	3481, -1000, 3481, 12259, 53, -1000, 456, 456, -1000, -1000,
-	-1000, 674, 704, 7866, -1000, -1000, -1000, 549, 167, 167,
-	-1000, 230, -1000, -1000, -1000, 532, -1000, 527, 573, 525,
-	12501, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
-	-1000, -1000, -1000, -1000, -1000, -1000, -1000, 12501, -1000, -1000,
-	-1000, -1000, -1000, 12259, -169, 451, 12259, 12259, 12501, -1000,
-	298, -1000, 349, -1000, 4537, -1000, 856, 10322, -1000, -1000,
-	467, -1000, 7866, 2095, 2095, -1000, -1000, 467, 667, 667,
-	-1000, 667, 669, -1000, 667, -2, 667, -7, 467, 467,
-	1447, 1897, 1377, 1852, -1000, 1353, 1760, 1157, 1223, 599,
-	-156, -1000, 349, 7113, 1503, 1428, -1000, 817, 554, 567,
-	-1000, -1000, 6359, 467, 493, 130, 491, -1000, 847, 12743,
-	7113, -1000, -1000, 7113, 668, -1000, 7113, -1000, -1000, -1000,
-	599, 599, 599, 491, 840, 349, -1000, -1000, -1000, -1000,
-	3217, -1000, 489, -1000, 667, -1000, -1000, -1000, 12259, -65,
-	886, 2095, -1000, -1000, -1000, -1000, -1000, -24, 445, -24,
-	365, -1000, 360, 3745, -1000, -1000, -1000, -1000, 819, -1000,
-	4537, -1000, -1000, 660, -1000, -1000, -1000, 852, 572, -1000,
-	2095, -1000, -1000, 107, -1000, -1000, -1000, -1000, -1000, -1000,
-	-1000, -1000, -1000, 7866, 7866, -1000, 7866, 7866, -1000, 7866,
-	7866, -1000, 7866, 7866, 7866, 467, 437, 349, 7866, 7866,
-	811, -1000, 599, -1000, -1000, 661, 12259, 12259, -1000, 12259,
-	840, -1000, 349, 349, 12259, 349, 12259, 12259, 12259, 8861,
-	-1000, 137, 12259, -1000, 484, -1000, 183, -1000, -160, 167,
-	-1000, 167, 494, 485, -1000, 599, 568, -1000, 232, 12259,
-	849, 842, -1000, -1000, 1661, 1661, 1661, 1661, 1661, 1661,
-	1661, 1661, 54, -1000, -1000, 1661, 1661, 871, -1000, 599,
-	-1000, 630, 128, -1000, -1000, -1000, 479, 476, 476, 476,
-	178, 137, -1000, 417, 220, 413, -1000, 46, 12259, 332,
-	809, -1000, 808, -1000, -1000, -1000, -1000, -1000, 36, 4537,
-	3481, 466, -1000, 7113, 7113, -1000, -1000, -1000, -1000, -1000,
-	-1000, -1000, -1000, 467, 52, -173, -1000, -1000, 12743, 567,
-	467, 12259, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 357,
-	-1000, -1000, 12501, -1000, -1000, 407, -1000, -1000, 460, -1000,
-	12259, -1000, -1000, 697, 349, 563, -1000, 743, -166, -187,
-	555, -1000, -1000, -1000, 659, -1000, -1000, 36, 778, -169,
-	-1000, 715, -1000, 12259, -1000, 32, -1000, -170, 455, 19,
-	-174, 690, 599, -189, 666, -1000, 862, 7364, -1000, -1000,
-	870, 170, 170, 1661, 467, -1000, -1000, -1000, 58, 361,
-	-1000, -1000, -1000, -1000, -1000, -1000,
+	-1000, 12364, -1000, -1000, -1000, -1000, -1000, 12122, -173, 503,
+	12122, 494, 12122, 12122, 668, 12364, -1000, 295, -1000, 352,
+	-1000, 4149, -1000, 938, 10185, -1000, -1000, 551, -1000, 7729,
+	2255, 2255, -1000, -1000, 551, 743, 743, -1000, 743, 749,
+	-1000, 743, -6, 743, -7, 551, 551, 1603, 2181, 1548,
+	2094, -1000, 1355, 1865, 883, 1168, 726, -160, -1000, 352,
+	6976, 692, 336, -1000, 886, 630, 690, -1000, -1000, 6222,
+	551, 573, 145, 568, -1000, 932, 12606, 6976, -1000, -1000,
+	6976, 744, -1000, 6976, -1000, -1000, -1000, 726, 726, 726,
+	568, 925, 352, -1000, -1000, -1000, -1000, 2817, -1000, 560,
+	-1000, 743, -1000, -1000, -1000, 12122, -47, 954, 2255, -1000,
+	-1000, -1000, -1000, -1000, -23, 468, -23, 423, -1000, 421,
+	3357, -1000, -1000, -1000, -1000, 907, -1000, 4149, -1000, -1000,
+	730, -1000, -1000, -1000, -1000, -1000, 935, 699, -1000, 2255,
+	-1000, -1000, 106, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
+	-1000, -1000, 7729, 7729, -1000, 7729, 7729, -1000, 7729, 7729,
+	-1000, 7729, 7729, 7729, 551, 467, 352, 7729, 7729, 898,
+	-1000, 726, -1000, -1000, 678, 12122, 12122, -1000, 12122, 925,
+	-1000, 352, 352, 12122, 352, 12122, 12122, 12122, 8724, -1000,
+	162, 12122, -1000, 558, -1000, 192, -1000, -115, 169, -1000,
+	169, 623, 574, -1000, 726, 697, -1000, 223, 12122, 931,
+	927, -1000, -1000, 478, 478, 478, 478, 478, 478, 478,
+	478, 22, -1000, -1000, 478, 478, 952, -1000, 726, -1000,
+	727, 140, -1000, -1000, -1000, 555, 550, 550, 550, 183,
+	162, -1000, 456, 222, 463, -1000, 42, 12122, 397, 897,
+	-1000, 893, -1000, -1000, -1000, -1000, -1000, 27, 4149, 3093,
+	544, -1000, 6976, 6976, -1000, -1000, -1000, -1000, -1000, -1000,
+	-1000, -1000, 551, 46, -181, -1000, -1000, 12606, 690, 551,
+	12122, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 414, -1000,
+	-1000, 12364, -1000, -1000, 458, -1000, -1000, 528, -1000, 12122,
+	-1000, -1000, 769, 352, 671, -1000, 837, -171, -184, 668,
+	-1000, -1000, -1000, 728, -1000, -1000, 27, 848, -173, -1000,
+	823, -1000, 12122, -1000, 23, -1000, -179, 507, 21, -182,
+	774, 726, -185, 760, -1000, 946, 7227, -1000, -1000, 948,
+	200, 200, 478, 551, -1000, -1000, -1000, 71, 394, -1000,
+	-1000, -1000, -1000, -1000, -1000,
 }
 var yyPgo = [...]int{
 
-	0, 1111, 30, 409, 1110, 1106, 1105, 1103, 1102, 1101,
-	1100, 1095, 1094, 1093, 1092, 1088, 1086, 1078, 1076, 1074,
-	1073, 1072, 1071, 1070, 1069, 1067, 113, 1066, 1065, 1062,
-	64, 1061, 71, 1059, 1057, 40, 210, 44, 41, 56,
-	1055, 37, 54, 69, 1052, 28, 1048, 1047, 81, 1046,
-	51, 1045, 1043, 48, 1042, 1041, 14, 42, 1040, 1039,
-	1037, 1036, 66, 1349, 1035, 1034, 16, 1033, 1032, 97,
-	1031, 53, 6, 15, 13, 26, 1030, 538, 7, 1029,
-	52, 1027, 1023, 1022, 1016, 20, 1013, 57, 1011, 19,
-	55, 1009, 9, 62, 25, 21, 8, 73, 60, 1008,
-	22, 61, 47, 1007, 1005, 462, 1002, 1001, 50, 1000,
-	999, 27, 166, 414, 997, 993, 977, 965, 35, 0,
-	861, 183, 70, 964, 960, 957, 1944, 65, 49, 17,
-	955, 79, 184, 43, 954, 953, 38, 952, 951, 950,
-	949, 948, 946, 945, 111, 944, 942, 941, 29, 63,
-	940, 939, 58, 23, 937, 936, 934, 45, 59, 933,
-	932, 46, 33, 931, 928, 927, 926, 923, 24, 11,
-	919, 18, 918, 12, 916, 34, 912, 4, 911, 10,
-	910, 3, 909, 5, 75, 1, 908, 2, 907, 906,
-	665, 930, 905, 904, 76,
+	0, 1192, 45, 508, 1190, 1189, 1188, 1184, 1183, 1182,
+	1181, 1180, 1179, 1176, 1175, 1174, 1173, 1168, 1167, 1165,
+	1163, 1162, 1160, 1158, 1157, 1155, 127, 1154, 1152, 1147,
+	70, 1145, 76, 1140, 1139, 38, 60, 50, 48, 1256,
+	1136, 52, 62, 57, 1135, 40, 1134, 1133, 77, 1131,
+	56, 1130, 1129, 1708, 1128, 1127, 13, 27, 1126, 1124,
+	1123, 1119, 71, 1051, 1118, 1117, 14, 1115, 1112, 87,
+	1110, 61, 6, 12, 33, 18, 1109, 183, 9, 1107,
+	58, 1106, 1105, 1104, 1101, 20, 1100, 65, 1099, 23,
+	64, 1094, 7, 75, 30, 19, 10, 78, 69, 1092,
+	16, 66, 49, 1091, 1083, 501, 1081, 1080, 44, 1079,
+	1077, 24, 184, 428, 1076, 1075, 1074, 1070, 42, 0,
+	518, 31, 79, 1068, 1067, 1065, 1404, 73, 59, 17,
+	1062, 43, 1078, 41, 1061, 1060, 37, 1059, 1056, 1054,
+	1053, 1052, 1050, 1048, 109, 1045, 1044, 1041, 35, 22,
+	1040, 1039, 63, 21, 1038, 1035, 1034, 55, 26, 1032,
+	1029, 47, 28, 1023, 1020, 1011, 1010, 1009, 29, 25,
+	1008, 15, 1007, 11, 1006, 34, 1003, 4, 1001, 8,
+	1000, 1, 996, 5, 51, 2, 991, 3, 975, 973,
+	53, 347, 969, 968, 80,
 }
 var yyR1 = [...]int{
 
@@ -2215,49 +2202,49 @@ var yyR1 = [...]int{
 	160, 160, 175, 175, 175, 175, 186, 187, 185, 185,
 	185, 185, 185, 167, 167, 167, 168, 168, 168, 169,
 	169, 169, 12, 12, 12, 12, 12, 12, 12, 12,
-	12, 12, 12, 12, 12, 184, 184, 184, 184, 184,
-	184, 184, 184, 184, 184, 184, 178, 176, 176, 177,
-	177, 13, 18, 18, 14, 14, 14, 14, 14, 15,
-	15, 19, 20, 20, 20, 20, 20, 20, 20, 20,
+	12, 12, 12, 12, 12, 12, 12, 12, 184, 184,
+	184, 184, 184, 184, 184, 184, 184, 184, 184, 178,
+	176, 176, 177, 177, 13, 18, 18, 14, 14, 14,
+	14, 14, 15, 15, 19, 20, 20, 20, 20, 20,
 	20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
 	20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
-	20, 20, 20, 20, 109, 109, 107, 107, 110, 110,
-	108, 108, 108, 111, 111, 111, 135, 135, 135, 21,
-	21, 23, 23, 24, 25, 22, 22, 22, 22, 22,
-	22, 22, 16, 193, 26, 27, 27, 28, 28, 28,
-	32, 32, 32, 30, 30, 31, 31, 37, 37, 36,
-	36, 38, 38, 38, 38, 123, 123, 123, 122, 122,
-	40, 40, 41, 41, 42, 42, 43, 43, 43, 43,
-	55, 55, 92, 92, 94, 94, 44, 44, 44, 44,
-	45, 45, 46, 46, 47, 47, 130, 130, 129, 129,
-	129, 128, 128, 49, 49, 49, 51, 50, 50, 50,
-	50, 52, 52, 54, 54, 53, 53, 56, 56, 56,
-	56, 57, 57, 39, 39, 39, 39, 39, 39, 39,
-	106, 106, 59, 59, 58, 58, 58, 58, 58, 58,
-	58, 58, 58, 58, 70, 70, 70, 70, 70, 70,
-	60, 60, 60, 60, 60, 60, 60, 35, 35, 71,
-	71, 71, 77, 72, 72, 63, 63, 63, 63, 63,
+	20, 20, 20, 20, 20, 20, 20, 20, 109, 109,
+	107, 107, 110, 110, 108, 108, 108, 111, 111, 111,
+	135, 135, 135, 21, 21, 23, 23, 24, 25, 22,
+	22, 22, 22, 22, 22, 22, 16, 193, 26, 27,
+	27, 28, 28, 28, 32, 32, 32, 30, 30, 31,
+	31, 37, 37, 36, 36, 38, 38, 38, 38, 123,
+	123, 123, 122, 122, 40, 40, 41, 41, 42, 42,
+	43, 43, 43, 43, 55, 55, 92, 92, 94, 94,
+	44, 44, 44, 44, 45, 45, 46, 46, 47, 47,
+	130, 130, 129, 129, 129, 128, 128, 49, 49, 49,
+	51, 50, 50, 50, 50, 52, 52, 54, 54, 53,
+	53, 56, 56, 56, 56, 57, 57, 39, 39, 39,
+	39, 39, 39, 39, 106, 106, 59, 59, 58, 58,
+	58, 58, 58, 58, 58, 58, 58, 58, 70, 70,
+	70, 70, 70, 70, 60, 60, 60, 60, 60, 60,
+	60, 35, 35, 71, 71, 71, 77, 72, 72, 63,
 	63, 63, 63, 63, 63, 63, 63, 63, 63, 63,
 	63, 63, 63, 63, 63, 63, 63, 63, 63, 63,
-	63, 63, 63, 63, 63, 63, 63, 67, 67, 67,
-	65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
+	63, 63, 63, 63, 63, 63, 63, 63, 63, 63,
+	63, 67, 67, 67, 65, 65, 65, 65, 65, 65,
 	65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
-	65, 66, 66, 66, 66, 66, 66, 66, 66, 66,
-	66, 66, 66, 66, 66, 66, 66, 194, 194, 69,
-	68, 68, 68, 68, 33, 33, 33, 33, 33, 133,
-	133, 136, 136, 136, 136, 136, 136, 136, 136, 136,
-	136, 136, 136, 136, 81, 81, 34, 34, 79, 79,
-	80, 82, 82, 78, 78, 78, 62, 62, 62, 62,
-	62, 62, 62, 62, 64, 64, 64, 83, 83, 84,
-	84, 85, 85, 86, 86, 87, 88, 88, 88, 89,
-	89, 89, 89, 90, 90, 90, 61, 61, 61, 61,
-	61, 61, 91, 91, 91, 91, 95, 95, 73, 73,
-	75, 75, 74, 76, 96, 96, 100, 97, 97, 101,
-	101, 101, 101, 99, 99, 99, 125, 125, 125, 104,
-	104, 112, 112, 113, 113, 105, 105, 114, 114, 114,
-	114, 114, 114, 114, 114, 114, 114, 115, 115, 115,
-	116, 116, 117, 117, 117, 124, 124, 120, 120, 121,
-	121, 126, 126, 127, 127, 118, 118, 118, 118, 118,
+	65, 65, 65, 65, 65, 66, 66, 66, 66, 66,
+	66, 66, 66, 66, 66, 66, 66, 66, 66, 66,
+	66, 194, 194, 69, 68, 68, 68, 68, 33, 33,
+	33, 33, 33, 133, 133, 136, 136, 136, 136, 136,
+	136, 136, 136, 136, 136, 136, 136, 136, 81, 81,
+	34, 34, 79, 79, 80, 82, 82, 78, 78, 78,
+	62, 62, 62, 62, 62, 62, 62, 62, 64, 64,
+	64, 83, 83, 84, 84, 85, 85, 86, 86, 87,
+	88, 88, 88, 89, 89, 89, 89, 90, 90, 90,
+	61, 61, 61, 61, 61, 61, 91, 91, 91, 91,
+	95, 95, 73, 73, 75, 75, 74, 76, 96, 96,
+	100, 97, 97, 101, 101, 101, 101, 99, 99, 99,
+	125, 125, 125, 104, 104, 112, 112, 113, 113, 105,
+	105, 114, 114, 114, 114, 114, 114, 114, 114, 114,
+	114, 115, 115, 115, 116, 116, 117, 117, 117, 124,
+	124, 120, 120, 121, 121, 126, 126, 127, 127, 118,
 	118, 118, 118, 118, 118, 118, 118, 118, 118, 118,
 	118, 118, 118, 118, 118, 118, 118, 118, 118, 118,
 	118, 118, 118, 118, 118, 118, 118, 118, 118, 118,
@@ -2267,6 +2254,7 @@ var yyR1 = [...]int{
 	118, 118, 118, 118, 118, 118, 118, 118, 118, 118,
 	118, 118, 118, 118, 118, 118, 118, 118, 118, 118,
 	118, 118, 118, 118, 118, 118, 118, 118, 118, 118,
+	118, 118, 118, 118, 119, 119, 119, 119, 119, 119,
 	119, 119, 119, 119, 119, 119, 119, 119, 119, 119,
 	119, 119, 119, 119, 119, 119, 119, 119, 119, 119,
 	119, 119, 119, 119, 119, 119, 119, 119, 119, 119,
@@ -2277,9 +2265,8 @@ var yyR1 = [...]int{
 	119, 119, 119, 119, 119, 119, 119, 119, 119, 119,
 	119, 119, 119, 119, 119, 119, 119, 119, 119, 119,
 	119, 119, 119, 119, 119, 119, 119, 119, 119, 119,
-	119, 119, 119, 119, 119, 119, 119, 119, 119, 119,
-	119, 119, 119, 119, 119, 190, 191, 131, 132, 132,
-	132,
+	119, 119, 119, 119, 119, 119, 119, 119, 119, 190,
+	191, 131, 132, 132, 132,
 }
 var yyR2 = [...]int{
 
@@ -2305,48 +2292,49 @@ var yyR2 = [...]int{
 	3, 1, 10, 11, 11, 12, 3, 3, 1, 1,
 	2, 2, 2, 0, 1, 3, 1, 2, 3, 1,
 	1, 1, 6, 7, 7, 7, 7, 4, 5, 7,
-	5, 5, 5, 12, 7, 1, 1, 1, 1, 1,
-	1, 1, 1, 1, 1, 1, 7, 1, 3, 8,
-	8, 3, 3, 5, 4, 6, 5, 4, 4, 3,
-	2, 3, 4, 4, 3, 4, 4, 4, 4, 4,
-	4, 3, 3, 2, 3, 3, 2, 3, 4, 3,
-	7, 5, 4, 2, 4, 2, 2, 2, 2, 3,
-	3, 5, 2, 3, 1, 1, 0, 1, 1, 1,
-	0, 2, 2, 0, 2, 2, 0, 1, 1, 2,
-	1, 1, 2, 1, 1, 2, 2, 2, 2, 2,
-	3, 3, 2, 0, 2, 0, 2, 1, 2, 2,
-	0, 1, 1, 0, 1, 0, 1, 0, 1, 1,
-	3, 1, 2, 3, 5, 0, 1, 2, 1, 1,
-	0, 2, 1, 3, 1, 1, 1, 3, 1, 3,
-	3, 7, 1, 3, 1, 3, 4, 4, 4, 3,
-	2, 4, 0, 1, 0, 2, 0, 1, 0, 1,
-	2, 1, 1, 1, 2, 2, 1, 2, 3, 2,
-	3, 2, 2, 2, 1, 1, 3, 0, 5, 5,
-	5, 0, 2, 1, 3, 3, 2, 3, 1, 2,
-	0, 3, 1, 1, 3, 3, 4, 4, 5, 3,
-	4, 5, 6, 2, 1, 2, 1, 2, 1, 2,
-	1, 1, 1, 1, 1, 1, 1, 0, 2, 1,
-	1, 1, 3, 1, 3, 1, 1, 1, 1, 1,
-	3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
-	3, 3, 3, 3, 3, 2, 2, 2, 2, 2,
-	2, 2, 3, 1, 1, 1, 1, 4, 5, 6,
-	4, 4, 6, 6, 6, 6, 8, 8, 6, 8,
-	8, 6, 8, 8, 6, 8, 8, 9, 7, 5,
-	4, 2, 2, 2, 2, 2, 2, 2, 2, 2,
-	2, 2, 2, 2, 2, 8, 8, 0, 2, 3,
-	4, 4, 4, 4, 0, 3, 4, 7, 3, 1,
-	1, 2, 3, 3, 1, 2, 2, 1, 2, 1,
-	2, 2, 1, 2, 0, 1, 0, 2, 1, 2,
-	4, 0, 2, 1, 3, 5, 1, 1, 1, 1,
-	1, 1, 1, 1, 1, 2, 2, 0, 3, 0,
-	2, 0, 3, 1, 3, 2, 0, 1, 1, 0,
-	2, 4, 4, 0, 2, 4, 2, 1, 3, 5,
-	4, 6, 1, 3, 3, 5, 0, 5, 1, 3,
-	1, 2, 3, 1, 1, 3, 3, 1, 3, 3,
-	3, 3, 3, 1, 2, 1, 1, 1, 1, 1,
-	1, 0, 2, 0, 3, 0, 1, 1, 1, 1,
-	1, 1, 1, 1, 1, 1, 1, 0, 1, 1,
-	1, 1, 0, 1, 1, 0, 2, 1, 1, 1,
+	5, 5, 5, 12, 7, 7, 7, 6, 1, 1,
+	1, 1, 1, 1, 1, 1, 1, 1, 1, 7,
+	1, 3, 8, 8, 3, 3, 5, 4, 6, 5,
+	4, 4, 3, 2, 3, 4, 4, 3, 4, 4,
+	4, 4, 4, 4, 3, 3, 2, 3, 3, 2,
+	3, 4, 3, 7, 5, 4, 2, 4, 2, 2,
+	2, 2, 3, 3, 5, 5, 2, 3, 1, 1,
+	0, 1, 1, 1, 0, 2, 2, 0, 2, 2,
+	0, 1, 1, 2, 1, 1, 2, 1, 1, 2,
+	2, 2, 2, 2, 3, 3, 2, 0, 2, 0,
+	2, 1, 2, 2, 0, 1, 1, 0, 1, 0,
+	1, 0, 1, 1, 3, 1, 2, 3, 5, 0,
+	1, 2, 1, 1, 0, 2, 1, 3, 1, 1,
+	1, 3, 1, 3, 3, 7, 1, 3, 1, 3,
+	4, 4, 4, 3, 2, 4, 0, 1, 0, 2,
+	0, 1, 0, 1, 2, 1, 1, 1, 2, 2,
+	1, 2, 3, 2, 3, 2, 2, 2, 1, 1,
+	3, 0, 5, 5, 5, 0, 2, 1, 3, 3,
+	2, 3, 1, 2, 0, 3, 1, 1, 3, 3,
+	4, 4, 5, 3, 4, 5, 6, 2, 1, 2,
+	1, 2, 1, 2, 1, 1, 1, 1, 1, 1,
+	1, 0, 2, 1, 1, 1, 3, 1, 3, 1,
+	1, 1, 1, 1, 3, 3, 3, 3, 3, 3,
+	3, 3, 3, 3, 3, 3, 3, 3, 3, 2,
+	2, 2, 2, 2, 2, 2, 3, 1, 1, 1,
+	1, 4, 5, 6, 4, 4, 6, 6, 6, 6,
+	8, 8, 6, 8, 8, 6, 8, 8, 6, 8,
+	8, 9, 7, 5, 4, 2, 2, 2, 2, 2,
+	2, 2, 2, 2, 2, 2, 2, 2, 2, 8,
+	8, 0, 2, 3, 4, 4, 4, 4, 0, 3,
+	4, 7, 3, 1, 1, 2, 3, 3, 1, 2,
+	2, 1, 2, 1, 2, 2, 1, 2, 0, 1,
+	0, 2, 1, 2, 4, 0, 2, 1, 3, 5,
+	1, 1, 1, 1, 1, 1, 1, 1, 1, 2,
+	2, 0, 3, 0, 2, 0, 3, 1, 3, 2,
+	0, 1, 1, 0, 2, 4, 4, 0, 2, 4,
+	2, 1, 3, 5, 4, 6, 1, 3, 3, 5,
+	0, 5, 1, 3, 1, 2, 3, 1, 1, 3,
+	3, 1, 3, 3, 3, 3, 3, 1, 2, 1,
+	1, 1, 1, 1, 1, 0, 2, 0, 3, 0,
+	1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+	1, 0, 1, 1, 1, 1, 0, 1, 1, 0,
+	2, 1, 1, 1, 1, 1, 1, 1, 1, 1,
 	1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
 	1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
 	1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
@@ -2368,8 +2356,7 @@ var yyR2 = [...]int{
 	1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
 	1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
 	1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
-	1, 1, 1, 1, 1, 1, 1, 0, 0, 1,
-	1,
+	1, 0, 0, 1, 1,
 }
 var yyChk = [...]int{
 
@@ -2422,250 +2409,252 @@ var yyChk = [...]int{
 	-112, 128, 57, -112, -112, -112, -53, 112, -53, 57,
 	30, -132, -190, -121, 244, 57, 155, 123, 156, 125,
 	-132, -132, -132, -132, -132, 159, 160, -132, -110, -109,
-	226, 227, 217, 225, 12, 217, 158, -132, -131, -131,
-	-191, 56, -90, 19, 31, -39, -126, -86, -87, -39,
-	-85, -2, -26, 36, -30, 21, 65, 11, -123, 73,
-	72, 89, -122, 22, -120, 59, 112, -39, -60, 92,
-	74, 90, 91, 76, 94, 93, 104, 97, 98, 99,
-	100, 101, 102, 103, 95, 96, 107, 82, 83, 84,
-	85, 86, 87, 88, -106, -190, -77, -190, 113, 114,
-	-63, -63, -63, -63, -63, -63, -63, -63, -190, -2,
-	-72, -39, -190, -190, -190, -190, -190, -190, -190, -190,
-	-190, -81, -39, -190, -194, -69, -190, -194, -69, -194,
-	-69, -194, -190, -194, -69, -194, -69, -194, -194, -69,
-	-190, -190, -190, -190, -190, -190, -54, 26, -53, -41,
-	-42, -43, -44, -55, -77, -190, -53, -53, -48, -192,
-	55, 11, 53, 55, -97, 164, -98, -102, 234, 236,
-	82, -125, -120, 59, 29, 30, 56, 55, -53, -137,
-	-140, -142, -141, -143, -138, -139, 184, 185, 108, 188,
-	190, 191, 192, 193, 194, 195, 196, 197, 198, 199,
-	30, 145, 180, 181, 182, 183, 200, 201, 202, 203,
-	204, 205, 206, 207, 167, 186, 263, 168, 169, 170,
-	171, 172, 173, 175, 176, 177, 178, 179, 57, -132,
-	125, 57, 74, 57, -53, -53, -132, 157, 157, 123,
-	123, -53, 55, 126, -48, 23, 52, -53, 57, 57,
-	-127, -126, -118, -132, -132, -132, -132, -132, -53, -132,
-	-132, -132, -132, 11, -108, 11, 92, -39, 52, 9,
-	92, 55, 18, 112, 55, -88, 24, 25, -89, -191,
-	-32, -64, -120, 60, 63, -31, 43, -53, -39, -39,
-	-70, 68, 74, 69, 70, -122, 99, -127, -121, -118,
-	-63, -71, -74, -77, 64, 92, 90, 91, 76, -63,
-	-63, -63, -63, -63, -63, -63, -63, -63, -63, -63,
-	-63, -63, -63, -63, -133, 57, 59, 57, -62, -62,
-	-120, -37, 21, -36, -38, -191, 55, -191, -2, -36,
-	-36, -39, -39, -78, 59, -120, -126, -78, 59, -36,
-	-30, -79, -80, 78, -78, -191, -63, -120, -120, -36,
-	-37, -36, -36, -93, 151, -53, 30, 55, -49, -51,
-	-50, -52, 42, 46, 48, 43, 44, 45, 49, -130,
-	22, -41, -190, -129, 151, -128, 22, -126, 59, -93,
-	53, -41, -53, -101, -98, 55, 235, 237, 238, 52,
-	71, -39, -149, 107, -167, -168, -169, -121, 59, 60,
-	-158, -159, -160, -170, 137, -175, 130, 132, 129, -161,
-	138, 124, 28, 56, -154, 68, 74, -150, 212, -144,
-	54, -144, -144, -144, -144, -148, 187, -148, -148, -148,
-	54, 54, -144, -144, -144, -152, 54, -152, -152, -153,
-	54, -153, -124, 53, -53, -132, 23, -132, -114, 120,
-	117, 118, -178, 116, 209, 187, 66, 29, 15, 253,
-	151, 268, 57, 152, -120, -120, -53, -53, 120, 117,
-	-53, -53, -53, -132, -53, -111, 90, 12, -126, -126,
-	-53, 38, -39, -39, -127, -87, -90, -104, 19, 11,
-	34, 34, -36, 68, 69, 70, 112, -190, -71, -63,
-	-63, -63, -35, 146, 73, -191, -191, -36, 55, -39,
-	-191, -191, -191, 55, 53, 22, 55, 11, 55, 11,
-	112, 55, 11, 55, 11, -191, -36, -82, -80, 80,
-	-39, -191, -191, 55, 55, -191, -191, -191, -191, -61,
-	30, 34, -2, -190, -190, -96, -100, -78, -42, -43,
-	-43, -42, -43, 42, 42, 42, 47, 42, 47, 42,
-	-50, -126, -191, -56, 50, 127, 51, -190, -128, -57,
-	12, -41, -57, -102, -103, 239, 236, 242, 57, 59,
-	55, -169, 82, 54, 57, 28, -161, -161, -162, 57,
-	-162, 28, -146, 29, 68, -151, 213, 60, -148, -148,
-	-149, 30, -149, -149, -149, -157, 59, -157, 60, 60,
-	52, -120, -132, -131, -184, 131, 137, 138, 133, 57,
-	124, 28, 130, 132, 151, 129, -184, -115, -116, 126,
-	22, 124, 28, 151, -183, 53, 157, 157, 126, -132,
-	-108, 59, -39, 39, 112, -53, -40, 11, 99, -121,
-	-37, -35, 73, -63, -63, -191, -38, -136, 108, 184,
-	145, 182, 178, 198, 189, 211, 180, 212, -133, -136,
-	-63, -63, -63, -63, -121, -63, -63, -63, -63, 262,
-	-85, 81, -39, 79, -63, -63, -95, 52, -96, -73,
-	-75, -74, -190, -2, -91, -120, -94, -120, -57, 55,
-	82, -46, -45, 52, 53, -47, 52, -45, 42, 42,
-	124, 124, 124, -94, -85, -39, -57, 236, 240, 241,
-	-168, -169, -172, -171, -120, -175, -162, -162, 54, -147,
-	52, -63, 56, -149, -149, 57, 108, 56, 55, 56,
-	55, 56, 55, -53, -131, -131, -53, -131, -120, -181,
-	265, -182, 57, -120, -120, -53, -111, -57, -41, -191,
-	-63, -191, -144, -144, -144, -153, -144, 172, -144, 172,
-	-191, -191, -191, 55, 19, -191, 55, 19, -191, 55,
-	19, -191, 55, 19, -190, -34, 258, -39, 55, 55,
-	27, -95, 55, -191, -191, -191, 55, 112, -191, 55,
-	-85, -100, -39, -39, 54, -39, -190, -190, -190, -191,
-	-89, 56, 55, -144, -92, -120, -155, 209, 9, -148,
-	59, -148, 60, 60, -132, 26, -180, -179, -121, 54,
-	-83, 13, -148, 57, -63, -63, -63, -63, -63, -63,
-	-63, -63, -63, -191, 59, -63, -63, 28, -75, 34,
-	-2, -190, -120, -120, -120, -89, -92, -92, -92, -92,
-	-129, -174, -173, 53, 134, 66, -171, 56, 55, -156,
-	130, 28, 129, -66, -149, -149, 56, 56, -190, 55,
-	82, -92, -84, 14, 16, -191, -191, -191, -191, -191,
-	-191, -191, -191, -33, 92, 265, -191, -191, 9, -73,
-	-2, 112, 56, -191, -191, -191, -56, -173, 57, -163,
-	82, 59, 140, -120, -145, 66, 28, 28, -176, -177,
-	151, -179, -169, 56, -39, -72, -191, 263, 49, 266,
-	-96, -191, -120, 60, -53, 59, -191, 55, -120, -183,
-	39, 264, 267, 54, -177, 34, -181, 39, -92, 153,
-	265, 56, 154, 266, -186, -187, 52, -190, 267, -187,
-	52, 10, 9, -63, 150, -185, 141, 136, 139, 30,
-	-185, -191, -191, 135, 29, 68,
+	226, 227, 217, 225, 12, 217, 158, 226, -132, -131,
+	-131, -191, 56, -90, 19, 31, -39, -126, -86, -87,
+	-39, -85, -2, -26, 36, -30, 21, 65, 11, -123,
+	73, 72, 89, -122, 22, -120, 59, 112, -39, -60,
+	92, 74, 90, 91, 76, 94, 93, 104, 97, 98,
+	99, 100, 101, 102, 103, 95, 96, 107, 82, 83,
+	84, 85, 86, 87, 88, -106, -190, -77, -190, 113,
+	114, -63, -63, -63, -63, -63, -63, -63, -63, -190,
+	-2, -72, -39, -190, -190, -190, -190, -190, -190, -190,
+	-190, -190, -81, -39, -190, -194, -69, -190, -194, -69,
+	-194, -69, -194, -190, -194, -69, -194, -69, -194, -194,
+	-69, -190, -190, -190, -190, -190, -190, -54, 26, -53,
+	-41, -42, -43, -44, -55, -77, -190, -53, -53, -48,
+	-192, 55, 11, 53, 55, -97, 164, -98, -102, 234,
+	236, 82, -125, -120, 59, 29, 30, 56, 55, -53,
+	-137, -140, -142, -141, -143, -138, -139, 184, 185, 108,
+	188, 190, 191, 192, 193, 194, 195, 196, 197, 198,
+	199, 30, 145, 180, 181, 182, 183, 200, 201, 202,
+	203, 204, 205, 206, 207, 167, 186, 263, 168, 169,
+	170, 171, 172, 173, 175, 176, 177, 178, 179, 57,
+	-132, 125, 57, 74, 57, -53, -53, -132, 157, 157,
+	123, 123, -53, 55, 126, -48, 23, 52, -53, 57,
+	57, -127, -126, -118, -132, -132, -132, -132, -132, -53,
+	-132, -132, -132, -132, 11, -108, 11, 92, -39, 52,
+	52, 9, 92, 55, 18, 112, 55, -88, 24, 25,
+	-89, -191, -32, -64, -120, 60, 63, -31, 43, -53,
+	-39, -39, -70, 68, 74, 69, 70, -122, 99, -127,
+	-121, -118, -63, -71, -74, -77, 64, 92, 90, 91,
+	76, -63, -63, -63, -63, -63, -63, -63, -63, -63,
+	-63, -63, -63, -63, -63, -63, -133, 57, 59, 57,
+	-62, -62, -120, -37, 21, -36, -38, -191, 55, -191,
+	-2, -36, -36, -39, -39, -78, 59, -120, -126, -78,
+	59, -36, -30, -79, -80, 78, -78, -191, -63, -120,
+	-120, -36, -37, -36, -36, -93, 151, -53, 30, 55,
+	-49, -51, -50, -52, 42, 46, 48, 43, 44, 45,
+	49, -130, 22, -41, -190, -129, 151, -128, 22, -126,
+	59, -93, 53, -41, -53, -101, -98, 55, 235, 237,
+	238, 52, 71, -39, -149, 107, -167, -168, -169, -121,
+	59, 60, -158, -159, -160, -170, 137, -175, 130, 132,
+	129, -161, 138, 124, 28, 56, -154, 68, 74, -150,
+	212, -144, 54, -144, -144, -144, -144, -148, 187, -148,
+	-148, -148, 54, 54, -144, -144, -144, -152, 54, -152,
+	-152, -153, 54, -153, -124, 53, -53, -132, 23, -132,
+	-114, 120, 117, 118, -178, 116, 209, 187, 66, 29,
+	15, 253, 151, 268, 57, 152, -120, -120, -53, -53,
+	120, 117, 30, -53, -53, -53, -132, -53, -111, 90,
+	12, -126, -126, -53, -53, 38, -39, -39, -127, -87,
+	-90, -104, 19, 11, 34, 34, -36, 68, 69, 70,
+	112, -190, -71, -63, -63, -63, -35, 146, 73, -191,
+	-191, -36, 55, -39, -191, -191, -191, 55, 53, 22,
+	55, 11, 55, 11, 112, 55, 11, 55, 11, -191,
+	-36, -82, -80, 80, -39, -191, -191, 55, 55, -191,
+	-191, -191, -191, -61, 30, 34, -2, -190, -190, -96,
+	-100, -78, -42, -43, -43, -42, -43, 42, 42, 42,
+	47, 42, 47, 42, -50, -126, -191, -56, 50, 127,
+	51, -190, -128, -57, 12, -41, -57, -102, -103, 239,
+	236, 242, 57, 59, 55, -169, 82, 54, 57, 28,
+	-161, -161, -162, 57, -162, 28, -146, 29, 68, -151,
+	213, 60, -148, -148, -149, 30, -149, -149, -149, -157,
+	59, -157, 60, 60, 52, -120, -132, -131, -184, 131,
+	137, 138, 133, 57, 124, 28, 130, 132, 151, 129,
+	-184, -115, -116, 126, 22, 124, 28, 151, -183, 53,
+	157, 131, 157, 131, -96, 126, -132, -108, 59, -39,
+	39, 112, -53, -40, 11, 99, -121, -37, -35, 73,
+	-63, -63, -191, -38, -136, 108, 184, 145, 182, 178,
+	198, 189, 211, 180, 212, -133, -136, -63, -63, -63,
+	-63, -121, -63, -63, -63, -63, 262, -85, 81, -39,
+	79, -63, -63, -95, 52, -96, -73, -75, -74, -190,
+	-2, -91, -120, -94, -120, -57, 55, 82, -46, -45,
+	52, 53, -47, 52, -45, 42, 42, 124, 124, 124,
+	-94, -85, -39, -57, 236, 240, 241, -168, -169, -172,
+	-171, -120, -175, -162, -162, 54, -147, 52, -63, 56,
+	-149, -149, 57, 108, 56, 55, 56, 55, 56, 55,
+	-53, -131, -131, -53, -131, -120, -181, 265, -182, 57,
+	-120, -158, -120, -120, -53, -111, -57, -41, -191, -63,
+	-191, -144, -144, -144, -153, -144, 172, -144, 172, -191,
+	-191, -191, 55, 19, -191, 55, 19, -191, 55, 19,
+	-191, 55, 19, -190, -34, 258, -39, 55, 55, 27,
+	-95, 55, -191, -191, -191, 55, 112, -191, 55, -85,
+	-100, -39, -39, 54, -39, -190, -190, -190, -191, -89,
+	56, 55, -144, -92, -120, -155, 209, 9, -148, 59,
+	-148, 60, 60, -132, 26, -180, -179, -121, 54, -83,
+	13, -148, 57, -63, -63, -63, -63, -63, -63, -63,
+	-63, -63, -191, 59, -63, -63, 28, -75, 34, -2,
+	-190, -120, -120, -120, -89, -92, -92, -92, -92, -129,
+	-174, -173, 53, 134, 66, -171, 56, 55, -156, 130,
+	28, 129, -66, -149, -149, 56, 56, -190, 55, 82,
+	-92, -84, 14, 16, -191, -191, -191, -191, -191, -191,
+	-191, -191, -33, 92, 265, -191, -191, 9, -73, -2,
+	112, 56, -191, -191, -191, -56, -173, 57, -163, 82,
+	59, 140, -120, -145, 66, 28, 28, -176, -177, 151,
+	-179, -169, 56, -39, -72, -191, 263, 49, 266, -96,
+	-191, -120, 60, -53, 59, -191, 55, -120, -183, 39,
+	264, 267, 54, -177, 34, -181, 39, -92, 153, 265,
+	56, 154, 266, -186, -187, 52, -190, 267, -187, 52,
+	10, 9, -63, 150, -185, 141, 136, 139, 30, -185,
+	-191, -191, 135, 29, 68,
 }
 var yyDef = [...]int{
 
 	23, -2, 2, -2, 5, 6, 7, 8, 9, 10,
 	11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
-	21, 22, 561, 0, 313, 313, 313, 313, 313, 313,
-	0, 632, 615, 0, 0, 0, 0, -2, 300, 301,
-	0, 303, 304, 857, 857, 857, 857, 857, 0, 0,
-	857, 0, 35, 36, 855, 1, 3, 569, 0, 0,
-	317, 320, 315, 0, 615, 615, 0, 0, 62, 63,
-	0, 0, 0, 841, 0, 613, 613, 613, 633, 634,
-	637, 638, 740, 741, 742, 743, 744, 745, 746, 747,
-	748, 749, 750, 751, 752, 753, 754, 755, 756, 757,
-	758, 759, 760, 761, 762, 763, 764, 765, 766, 767,
-	768, 769, 770, 771, 772, 773, 774, 775, 776, 777,
-	778, 779, 780, 781, 782, 783, 784, 785, 786, 787,
-	788, 789, 790, 791, 792, 793, 794, 795, 796, 797,
-	798, 799, 800, 801, 802, 803, 804, 805, 806, 807,
-	808, 809, 810, 811, 812, 813, 814, 815, 816, 817,
-	818, 819, 820, 821, 822, 823, 824, 825, 826, 827,
-	828, 829, 830, 831, 832, 833, 834, 835, 836, 837,
-	838, 839, 840, 842, 843, 844, 845, 846, 847, 848,
-	849, 850, 851, 852, 853, 854, 0, 0, 0, 616,
-	0, 611, 0, 611, 611, 611, 0, 250, 385, 641,
-	642, 841, 0, 0, 0, 858, 0, 858, 858, 263,
-	858, 858, 266, 858, 0, 858, 0, 273, 275, 276,
-	277, 278, 0, 282, 858, 297, 298, 287, 299, 302,
-	305, 306, 307, 308, 309, 857, 857, 312, 29, 573,
-	0, 0, 561, 31, 0, 313, 318, 319, 323, 321,
-	322, 314, 0, 331, 335, 0, 393, 0, 398, 400,
-	-2, -2, 0, 435, 436, 437, 438, 439, 0, 0,
-	0, 0, 0, 0, 0, 0, 463, 464, 465, 466,
-	546, 547, 548, 549, 550, 551, 552, 553, 402, 403,
-	543, 593, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 534, 0, 507, 507, 507, 507, 507, 507, 507,
-	507, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 43, 47, 0, 832, 597, -2, -2, 0, 0,
-	639, 640, -2, 750, -2, 645, 646, 647, 648, 649,
-	650, 651, 652, 653, 654, 655, 656, 657, 658, 659,
-	660, 661, 662, 663, 664, 665, 666, 667, 668, 669,
-	670, 671, 672, 673, 674, 675, 676, 677, 678, 679,
-	680, 681, 682, 683, 684, 685, 686, 687, 688, 689,
-	690, 691, 692, 693, 694, 695, 696, 697, 698, 699,
-	700, 701, 702, 703, 704, 705, 706, 707, 708, 709,
-	710, 711, 712, 713, 714, 715, 716, 717, 718, 719,
-	720, 721, 722, 723, 724, 725, 726, 727, 728, 729,
-	730, 731, 732, 733, 734, 735, 736, 737, 738, 739,
-	0, 0, 81, 0, 79, 0, 858, 0, 0, 0,
-	0, 0, 0, 858, 0, 0, 0, 0, 241, 0,
-	0, 0, 0, 0, 0, 0, 249, 0, 251, 858,
-	858, 254, 859, 860, 858, 858, 858, 0, 858, 858,
-	261, 262, 264, 265, 267, 858, 858, 269, 0, 290,
-	288, 289, 284, 285, 0, 279, 280, 283, 310, 311,
-	30, 856, 24, 0, 0, 570, 0, 562, 563, 566,
-	569, 29, 320, 0, 325, 324, 316, 0, 332, 0,
-	0, 0, 336, 0, 338, 339, 0, 396, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 420, 421, 422,
-	423, 424, 425, 426, 399, 0, 413, 0, 0, 0,
-	455, 456, 457, 458, 459, 460, 461, 0, 327, 29,
-	0, 433, 0, 0, 0, 0, 0, 0, 0, 0,
-	323, 0, 535, 0, 491, 499, 0, 492, 500, 493,
-	501, 494, 0, 495, 502, 496, 503, 497, 498, 504,
-	0, 0, 0, 327, 0, 0, 45, 0, 384, 0,
-	342, 344, 345, 346, -2, 0, 368, -2, 0, 0,
-	0, 41, 42, 0, 48, 832, 50, 51, 0, 0,
-	0, 159, 606, 607, 608, 604, 203, 0, 0, 147,
-	143, 87, 88, 89, 136, 91, 136, 136, 136, 136,
-	156, 156, 156, 156, 119, 120, 121, 122, 123, 0,
-	0, 106, 136, 136, 136, 110, 126, 127, 128, 129,
-	130, 131, 132, 133, 92, 93, 94, 95, 96, 97,
-	98, 99, 100, 138, 138, 138, 140, 140, 635, 65,
-	0, 858, 0, 858, 77, 0, 217, 0, 0, 0,
-	0, 0, 0, 0, 244, 612, 0, 858, 247, 248,
-	386, 643, 644, 252, 253, 255, 256, 257, 258, 259,
-	260, 268, 272, 0, 293, 0, 0, 274, 0, 574,
-	0, 0, 0, 0, 0, 565, 567, 568, 573, 32,
-	323, 0, 554, 0, 0, 0, 326, 27, 394, 395,
-	397, 414, 0, 416, 418, 337, 333, 0, 544, -2,
-	404, 405, 429, 430, 431, 0, 0, 0, 0, 427,
-	409, 0, 440, 441, 442, 443, 444, 445, 446, 447,
-	448, 449, 450, 451, 454, 519, 520, 0, 452, 453,
-	462, 0, 0, 328, 329, 432, 0, 592, 29, 0,
-	0, 0, 0, 0, 0, 543, 0, 0, 0, 0,
-	0, 541, 538, 0, 0, 508, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 383, 0, 0, 0, 0,
-	0, 0, 373, 0, 0, 376, 0, 0, 0, 0,
-	367, 0, 0, 387, 800, 369, 0, 371, 372, 391,
-	0, 391, 44, 598, 49, 0, 0, 54, 55, 599,
-	600, 601, 602, 0, 78, 204, 206, 209, 210, 211,
-	82, 83, 84, 0, 0, 191, 0, 0, 185, 185,
-	0, 183, 184, 80, 150, 148, 0, 145, 144, 90,
-	0, 156, 156, 113, 114, 159, 0, 159, 159, 159,
-	0, 0, 107, 108, 109, 101, 0, 102, 103, 104,
-	0, 105, 0, 0, 858, 67, 614, 68, 857, 0,
-	0, 627, 218, 617, 618, 619, 620, 621, 622, 623,
-	624, 625, 626, 0, 69, 220, 222, 221, 0, 0,
-	0, 242, 858, 246, 290, 271, 0, 0, 291, 292,
-	281, 0, 571, 572, 0, 564, 25, 0, 609, 610,
-	555, 556, 340, 415, 417, 419, 0, 327, 406, 427,
-	410, 0, 407, 0, 0, 401, 467, 0, 0, 434,
-	-2, 470, 471, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 561, 0, 539, 0,
-	0, 490, 509, 0, 0, 510, 511, 512, 513, 586,
-	0, 0, -2, 0, 0, 391, 594, 0, 343, 362,
-	364, 0, 359, 374, 375, 377, 0, 379, 0, 381,
-	382, 347, 349, 350, 0, 0, 0, 0, 370, 561,
-	0, 391, 40, 52, 53, 0, 0, 59, 160, 161,
-	0, 207, 0, 0, 0, 178, 185, 185, 181, 186,
-	182, 0, 152, 0, 149, 86, 146, 0, 159, 159,
-	115, 0, 116, 117, 118, 0, 134, 0, 0, 0,
-	0, 636, 66, 212, 857, 225, 226, 227, 228, 229,
-	230, 231, 232, 233, 234, 235, 857, 0, 857, 628,
-	629, 630, 631, 0, 72, 0, 0, 0, 0, 245,
-	293, 294, 295, 575, 0, 26, 391, 0, 334, 545,
-	0, 408, 0, 428, 411, 468, 330, 0, 136, 136,
-	524, 136, 140, 527, 136, 529, 136, 532, 0, 0,
-	0, 0, 0, 0, 544, 0, 0, 0, 0, 0,
-	536, 489, 542, 0, 0, 0, 33, 0, 586, 576,
-	588, 590, 0, 29, 0, 582, 0, 354, 561, 0,
-	0, 356, 363, 0, 0, 357, 0, 358, 378, 380,
-	0, 0, 0, 0, 569, 392, 39, 56, 57, 58,
-	205, 208, 0, 187, 136, 190, 179, 180, 0, 154,
-	0, 151, 137, 111, 112, 157, 158, 156, 0, 156,
-	0, 141, 0, 858, 213, 214, 215, 216, 0, 219,
-	0, 70, 71, 0, 224, 243, 270, 557, 341, 469,
-	412, 472, 521, 156, 525, 526, 528, 530, 531, 533,
-	474, 473, 475, 0, 0, 481, 0, 0, 478, 0,
-	0, 484, 0, 0, 0, 0, 0, 540, 0, 0,
-	0, 34, 0, 591, -2, 0, 0, 0, 46, 0,
-	569, 595, 596, 360, 0, 365, 0, 0, 0, 368,
-	38, 170, 0, 189, 0, 352, 162, 155, 0, 159,
-	135, 159, 0, 0, 64, 0, 73, 74, 0, 0,
-	559, 0, 522, 523, 0, 0, 0, 0, 0, 0,
-	0, 0, 514, 488, 537, 0, 0, 0, 589, 0,
-	-2, 0, 584, 583, 355, 37, 0, 0, 0, 0,
-	387, 169, 171, 0, 176, 0, 188, 0, 0, 167,
-	0, 164, 166, 153, 124, 125, 139, 142, 0, 0,
-	0, 0, 28, 0, 0, 476, 477, 482, 483, 479,
-	480, 485, 486, 0, 0, 0, 505, 506, 0, 579,
-	29, 0, 361, 388, 389, 390, 351, 172, 173, 0,
-	177, 175, 0, 353, 85, 0, 163, 165, 0, 237,
-	0, 75, 76, 69, 560, 558, 487, 0, 0, 0,
-	587, -2, 585, 174, 0, 168, 236, 0, 0, 72,
-	515, 0, 518, 0, 238, 0, 223, 516, 0, 0,
-	0, 192, 0, 0, 193, 194, 0, 0, 517, 195,
-	0, 0, 0, 0, 0, 196, 198, 199, 0, 0,
-	197, 239, 240, 200, 201, 202,
+	21, 22, 565, 0, 317, 317, 317, 317, 317, 317,
+	0, 636, 619, 0, 0, 0, 0, -2, 304, 305,
+	0, 307, 308, 861, 861, 861, 861, 861, 0, 0,
+	861, 0, 35, 36, 859, 1, 3, 573, 0, 0,
+	321, 324, 319, 0, 619, 619, 0, 0, 62, 63,
+	0, 0, 0, 845, 0, 617, 617, 617, 637, 638,
+	641, 642, 744, 745, 746, 747, 748, 749, 750, 751,
+	752, 753, 754, 755, 756, 757, 758, 759, 760, 761,
+	762, 763, 764, 765, 766, 767, 768, 769, 770, 771,
+	772, 773, 774, 775, 776, 777, 778, 779, 780, 781,
+	782, 783, 784, 785, 786, 787, 788, 789, 790, 791,
+	792, 793, 794, 795, 796, 797, 798, 799, 800, 801,
+	802, 803, 804, 805, 806, 807, 808, 809, 810, 811,
+	812, 813, 814, 815, 816, 817, 818, 819, 820, 821,
+	822, 823, 824, 825, 826, 827, 828, 829, 830, 831,
+	832, 833, 834, 835, 836, 837, 838, 839, 840, 841,
+	842, 843, 844, 846, 847, 848, 849, 850, 851, 852,
+	853, 854, 855, 856, 857, 858, 0, 0, 0, 620,
+	0, 615, 0, 615, 615, 615, 0, 253, 389, 645,
+	646, 845, 0, 0, 0, 862, 0, 862, 862, 266,
+	862, 862, 269, 862, 0, 862, 0, 276, 278, 279,
+	280, 281, 0, 286, 862, 301, 302, 291, 303, 306,
+	309, 310, 311, 312, 313, 861, 861, 316, 29, 577,
+	0, 0, 565, 31, 0, 317, 322, 323, 327, 325,
+	326, 318, 0, 335, 339, 0, 397, 0, 402, 404,
+	-2, -2, 0, 439, 440, 441, 442, 443, 0, 0,
+	0, 0, 0, 0, 0, 0, 467, 468, 469, 470,
+	550, 551, 552, 553, 554, 555, 556, 557, 406, 407,
+	547, 597, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 538, 0, 511, 511, 511, 511, 511, 511, 511,
+	511, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 43, 47, 0, 836, 601, -2, -2, 0, 0,
+	643, 644, -2, 754, -2, 649, 650, 651, 652, 653,
+	654, 655, 656, 657, 658, 659, 660, 661, 662, 663,
+	664, 665, 666, 667, 668, 669, 670, 671, 672, 673,
+	674, 675, 676, 677, 678, 679, 680, 681, 682, 683,
+	684, 685, 686, 687, 688, 689, 690, 691, 692, 693,
+	694, 695, 696, 697, 698, 699, 700, 701, 702, 703,
+	704, 705, 706, 707, 708, 709, 710, 711, 712, 713,
+	714, 715, 716, 717, 718, 719, 720, 721, 722, 723,
+	724, 725, 726, 727, 728, 729, 730, 731, 732, 733,
+	734, 735, 736, 737, 738, 739, 740, 741, 742, 743,
+	0, 0, 81, 0, 79, 0, 862, 0, 0, 0,
+	0, 0, 0, 862, 0, 0, 0, 0, 244, 0,
+	0, 0, 0, 0, 0, 0, 252, 0, 254, 862,
+	862, 257, 863, 864, 862, 862, 862, 0, 862, 862,
+	264, 265, 267, 268, 270, 862, 862, 272, 0, 294,
+	292, 293, 288, 289, 0, 282, 283, 0, 287, 314,
+	315, 30, 860, 24, 0, 0, 574, 0, 566, 567,
+	570, 573, 29, 324, 0, 329, 328, 320, 0, 336,
+	0, 0, 0, 340, 0, 342, 343, 0, 400, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 424, 425,
+	426, 427, 428, 429, 430, 403, 0, 417, 0, 0,
+	0, 459, 460, 461, 462, 463, 464, 465, 0, 331,
+	29, 0, 437, 0, 0, 0, 0, 0, 0, 0,
+	0, 327, 0, 539, 0, 495, 503, 0, 496, 504,
+	497, 505, 498, 0, 499, 506, 500, 507, 501, 502,
+	508, 0, 0, 0, 331, 0, 0, 45, 0, 388,
+	0, 346, 348, 349, 350, -2, 0, 372, -2, 0,
+	0, 0, 41, 42, 0, 48, 836, 50, 51, 0,
+	0, 0, 159, 610, 611, 612, 608, 203, 0, 0,
+	147, 143, 87, 88, 89, 136, 91, 136, 136, 136,
+	136, 156, 156, 156, 156, 119, 120, 121, 122, 123,
+	0, 0, 106, 136, 136, 136, 110, 126, 127, 128,
+	129, 130, 131, 132, 133, 92, 93, 94, 95, 96,
+	97, 98, 99, 100, 138, 138, 138, 140, 140, 639,
+	65, 0, 862, 0, 862, 77, 0, 217, 0, 0,
+	0, 0, 0, 0, 0, 247, 616, 0, 862, 250,
+	251, 390, 647, 648, 255, 256, 258, 259, 260, 261,
+	262, 263, 271, 275, 0, 297, 0, 0, 277, 0,
+	0, 578, 0, 0, 0, 0, 0, 569, 571, 572,
+	577, 32, 327, 0, 558, 0, 0, 0, 330, 27,
+	398, 399, 401, 418, 0, 420, 422, 341, 337, 0,
+	548, -2, 408, 409, 433, 434, 435, 0, 0, 0,
+	0, 431, 413, 0, 444, 445, 446, 447, 448, 449,
+	450, 451, 452, 453, 454, 455, 458, 523, 524, 0,
+	456, 457, 466, 0, 0, 332, 333, 436, 0, 596,
+	29, 0, 0, 0, 0, 0, 0, 547, 0, 0,
+	0, 0, 0, 545, 542, 0, 0, 512, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 387, 0, 0,
+	0, 0, 0, 0, 377, 0, 0, 380, 0, 0,
+	0, 0, 371, 0, 0, 391, 804, 373, 0, 375,
+	376, 395, 0, 395, 44, 602, 49, 0, 0, 54,
+	55, 603, 604, 605, 606, 0, 78, 204, 206, 209,
+	210, 211, 82, 83, 84, 0, 0, 191, 0, 0,
+	185, 185, 0, 183, 184, 80, 150, 148, 0, 145,
+	144, 90, 0, 156, 156, 113, 114, 159, 0, 159,
+	159, 159, 0, 0, 107, 108, 109, 101, 0, 102,
+	103, 104, 0, 105, 0, 0, 862, 67, 618, 68,
+	861, 0, 0, 631, 218, 621, 622, 623, 624, 625,
+	626, 627, 628, 629, 630, 0, 69, 220, 222, 221,
+	0, 0, 0, 0, 245, 862, 249, 294, 274, 0,
+	0, 295, 296, 284, 285, 0, 575, 576, 0, 568,
+	25, 0, 613, 614, 559, 560, 344, 419, 421, 423,
+	0, 331, 410, 431, 414, 0, 411, 0, 0, 405,
+	471, 0, 0, 438, -2, 474, 475, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	565, 0, 543, 0, 0, 494, 513, 0, 0, 514,
+	515, 516, 517, 590, 0, 0, -2, 0, 0, 395,
+	598, 0, 347, 366, 368, 0, 363, 378, 379, 381,
+	0, 383, 0, 385, 386, 351, 353, 354, 0, 0,
+	0, 0, 374, 565, 0, 395, 40, 52, 53, 0,
+	0, 59, 160, 161, 0, 207, 0, 0, 0, 178,
+	185, 185, 181, 186, 182, 0, 152, 0, 149, 86,
+	146, 0, 159, 159, 115, 0, 116, 117, 118, 0,
+	134, 0, 0, 0, 0, 640, 66, 212, 861, 228,
+	229, 230, 231, 232, 233, 234, 235, 236, 237, 238,
+	861, 0, 861, 632, 633, 634, 635, 0, 72, 0,
+	0, 0, 0, 0, 227, 0, 248, 297, 298, 299,
+	579, 0, 26, 395, 0, 338, 549, 0, 412, 0,
+	432, 415, 472, 334, 0, 136, 136, 528, 136, 140,
+	531, 136, 533, 136, 536, 0, 0, 0, 0, 0,
+	0, 548, 0, 0, 0, 0, 0, 540, 493, 546,
+	0, 0, 0, 33, 0, 590, 580, 592, 594, 0,
+	29, 0, 586, 0, 358, 565, 0, 0, 360, 367,
+	0, 0, 361, 0, 362, 382, 384, 0, 0, 0,
+	0, 573, 396, 39, 56, 57, 58, 205, 208, 0,
+	187, 136, 190, 179, 180, 0, 154, 0, 151, 137,
+	111, 112, 157, 158, 156, 0, 156, 0, 141, 0,
+	862, 213, 214, 215, 216, 0, 219, 0, 70, 71,
+	0, 225, 224, 226, 246, 273, 561, 345, 473, 416,
+	476, 525, 156, 529, 530, 532, 534, 535, 537, 478,
+	477, 479, 0, 0, 485, 0, 0, 482, 0, 0,
+	488, 0, 0, 0, 0, 0, 544, 0, 0, 0,
+	34, 0, 595, -2, 0, 0, 0, 46, 0, 573,
+	599, 600, 364, 0, 369, 0, 0, 0, 372, 38,
+	170, 0, 189, 0, 356, 162, 155, 0, 159, 135,
+	159, 0, 0, 64, 0, 73, 74, 0, 0, 563,
+	0, 526, 527, 0, 0, 0, 0, 0, 0, 0,
+	0, 518, 492, 541, 0, 0, 0, 593, 0, -2,
+	0, 588, 587, 359, 37, 0, 0, 0, 0, 391,
+	169, 171, 0, 176, 0, 188, 0, 0, 167, 0,
+	164, 166, 153, 124, 125, 139, 142, 0, 0, 0,
+	0, 28, 0, 0, 480, 481, 486, 487, 483, 484,
+	489, 490, 0, 0, 0, 509, 510, 0, 583, 29,
+	0, 365, 392, 393, 394, 355, 172, 173, 0, 177,
+	175, 0, 357, 85, 0, 163, 165, 0, 240, 0,
+	75, 76, 69, 564, 562, 491, 0, 0, 0, 591,
+	-2, 589, 174, 0, 168, 239, 0, 0, 72, 519,
+	0, 522, 0, 241, 0, 223, 520, 0, 0, 0,
+	192, 0, 0, 193, 194, 0, 0, 521, 195, 0,
+	0, 0, 0, 0, 196, 198, 199, 0, 0, 197,
+	242, 243, 200, 201, 202,
 }
 var yyTok1 = [...]int{
 
@@ -4345,59 +4334,89 @@ yydefault:
 				},
 			}
 		}
-	case 236:
+	case 225:
+		yyDollar = yyS[yypt-7 : yypt+1]
+//line sql.y:1342
+		{
+			yyVAL.statement = &DDL{
+				Action:     AddVschemaColStr,
+				Table:      yyDollar[4].tableName,
+				VschemaCol: yyDollar[7].columnDefinition,
+			}
+		}
+	case 226:
+		yyDollar = yyS[yypt-7 : yypt+1]
+//line sql.y:1350
+		{
+			yyVAL.statement = &DDL{
+				Action:     DropVschemaColStr,
+				Table:      yyDollar[4].tableName,
+				VschemaCol: &ColumnDefinition{Name: yyDollar[7].colIdent},
+			}
+		}
+	case 227:
+		yyDollar = yyS[yypt-6 : yypt+1]
+//line sql.y:1358
+		{
+			yyVAL.statement = &DDL{
+				Action:         SetVschemaUpdatesStr,
+				Table:          yyDollar[4].tableName,
+				VschemaUpdates: yyDollar[6].updateExprs,
+			}
+		}
+	case 239:
 		yyDollar = yyS[yypt-7 : yypt+1]
-//line sql.y:1357
+//line sql.y:1381
 		{
 			yyVAL.partSpec = &PartitionSpec{Action: ReorganizeStr, Name: yyDollar[3].colIdent, Definitions: yyDollar[6].partDefs}
 		}
-	case 237:
+	case 240:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:1363
+//line sql.y:1387
 		{
 			yyVAL.partDefs = []*PartitionDefinition{yyDollar[1].partDef}
 		}
-	case 238:
+	case 241:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:1367
+//line sql.y:1391
 		{
 			yyVAL.partDefs = append(yyDollar[1].partDefs, yyDollar[3].partDef)
 		}
-	case 239:
+	case 242:
 		yyDollar = yyS[yypt-8 : yypt+1]
-//line sql.y:1373
+//line sql.y:1397
 		{
 			yyVAL.partDef = &PartitionDefinition{Name: yyDollar[2].colIdent, Limit: yyDollar[7].expr}
 		}
-	case 240:
+	case 243:
 		yyDollar = yyS[yypt-8 : yypt+1]
-//line sql.y:1377
+//line sql.y:1401
 		{
 			yyVAL.partDef = &PartitionDefinition{Name: yyDollar[2].colIdent, Maxvalue: true}
 		}
-	case 241:
+	case 244:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:1383
+//line sql.y:1407
 		{
 			yyVAL.statement = yyDollar[3].ddl
 		}
-	case 242:
+	case 245:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:1389
+//line sql.y:1413
 		{
 			yyVAL.ddl = &DDL{Action: RenameStr, FromTables: TableNames{yyDollar[1].tableName}, ToTables: TableNames{yyDollar[3].tableName}}
 		}
-	case 243:
+	case 246:
 		yyDollar = yyS[yypt-5 : yypt+1]
-//line sql.y:1393
+//line sql.y:1417
 		{
 			yyVAL.ddl = yyDollar[1].ddl
 			yyVAL.ddl.FromTables = append(yyVAL.ddl.FromTables, yyDollar[3].tableName)
 			yyVAL.ddl.ToTables = append(yyVAL.ddl.ToTables, yyDollar[5].tableName)
 		}
-	case 244:
+	case 247:
 		yyDollar = yyS[yypt-4 : yypt+1]
-//line sql.y:1401
+//line sql.y:1425
 		{
 			var exists bool
 			if yyDollar[3].byt != 0 {
@@ -4405,16 +4424,16 @@ yydefault:
 			}
 			yyVAL.statement = &DDL{Action: DropStr, FromTables: yyDollar[4].tableNames, IfExists: exists}
 		}
-	case 245:
+	case 248:
 		yyDollar = yyS[yypt-6 : yypt+1]
-//line sql.y:1409
+//line sql.y:1433
 		{
 			// Change this to an alter statement
 			yyVAL.statement = &DDL{Action: AlterStr, Table: yyDollar[5].tableName}
 		}
-	case 246:
+	case 249:
 		yyDollar = yyS[yypt-5 : yypt+1]
-//line sql.y:1414
+//line sql.y:1438
 		{
 			var exists bool
 			if yyDollar[3].byt != 0 {
@@ -4422,154 +4441,154 @@ yydefault:
 			}
 			yyVAL.statement = &DDL{Action: DropStr, FromTables: TableNames{yyDollar[4].tableName.ToViewName()}, IfExists: exists}
 		}
-	case 247:
+	case 250:
 		yyDollar = yyS[yypt-4 : yypt+1]
-//line sql.y:1422
+//line sql.y:1446
 		{
 			yyVAL.statement = &DBDDL{Action: DropStr, DBName: string(yyDollar[4].bytes)}
 		}
-	case 248:
+	case 251:
 		yyDollar = yyS[yypt-4 : yypt+1]
-//line sql.y:1426
+//line sql.y:1450
 		{
 			yyVAL.statement = &DBDDL{Action: DropStr, DBName: string(yyDollar[4].bytes)}
 		}
-	case 249:
+	case 252:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:1432
+//line sql.y:1456
 		{
 			yyVAL.statement = &DDL{Action: TruncateStr, Table: yyDollar[3].tableName}
 		}
-	case 250:
+	case 253:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:1436
+//line sql.y:1460
 		{
 			yyVAL.statement = &DDL{Action: TruncateStr, Table: yyDollar[2].tableName}
 		}
-	case 251:
+	case 254:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:1441
+//line sql.y:1465
 		{
 			yyVAL.statement = &DDL{Action: AlterStr, Table: yyDollar[3].tableName}
 		}
-	case 252:
+	case 255:
 		yyDollar = yyS[yypt-4 : yypt+1]
-//line sql.y:1447
+//line sql.y:1471
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes) + " " + string(yyDollar[3].bytes)}
 		}
-	case 253:
+	case 256:
 		yyDollar = yyS[yypt-4 : yypt+1]
-//line sql.y:1452
+//line sql.y:1476
 		{
 			yyVAL.statement = &Show{Type: CharsetStr}
 		}
-	case 254:
+	case 257:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:1456
+//line sql.y:1480
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes)}
 		}
-	case 255:
+	case 258:
 		yyDollar = yyS[yypt-4 : yypt+1]
-//line sql.y:1460
+//line sql.y:1484
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes) + " " + string(yyDollar[3].bytes)}
 		}
-	case 256:
+	case 259:
 		yyDollar = yyS[yypt-4 : yypt+1]
-//line sql.y:1465
+//line sql.y:1489
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes) + " " + string(yyDollar[3].bytes)}
 		}
-	case 257:
+	case 260:
 		yyDollar = yyS[yypt-4 : yypt+1]
-//line sql.y:1469
+//line sql.y:1493
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes) + " " + string(yyDollar[3].bytes)}
 		}
-	case 258:
+	case 261:
 		yyDollar = yyS[yypt-4 : yypt+1]
-//line sql.y:1473
+//line sql.y:1497
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes) + " " + string(yyDollar[3].bytes), Table: yyDollar[4].tableName}
 		}
-	case 259:
+	case 262:
 		yyDollar = yyS[yypt-4 : yypt+1]
-//line sql.y:1477
+//line sql.y:1501
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes) + " " + string(yyDollar[3].bytes)}
 		}
-	case 260:
+	case 263:
 		yyDollar = yyS[yypt-4 : yypt+1]
-//line sql.y:1481
+//line sql.y:1505
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes) + " " + string(yyDollar[3].bytes)}
 		}
-	case 261:
+	case 264:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:1485
+//line sql.y:1509
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes)}
 		}
-	case 262:
+	case 265:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:1489
+//line sql.y:1513
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes)}
 		}
-	case 263:
+	case 266:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:1493
+//line sql.y:1517
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes)}
 		}
-	case 264:
+	case 267:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:1497
+//line sql.y:1521
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes)}
 		}
-	case 265:
+	case 268:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:1501
+//line sql.y:1525
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes)}
 		}
-	case 266:
+	case 269:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:1505
+//line sql.y:1529
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes)}
 		}
-	case 267:
+	case 270:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:1509
+//line sql.y:1533
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes)}
 		}
-	case 268:
+	case 271:
 		yyDollar = yyS[yypt-4 : yypt+1]
-//line sql.y:1513
+//line sql.y:1537
 		{
 			yyVAL.statement = &Show{Scope: yyDollar[2].str, Type: string(yyDollar[3].bytes)}
 		}
-	case 269:
+	case 272:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:1517
+//line sql.y:1541
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes)}
 		}
-	case 270:
+	case 273:
 		yyDollar = yyS[yypt-7 : yypt+1]
-//line sql.y:1521
+//line sql.y:1545
 		{
 			showTablesOpt := &ShowTablesOpt{Full: yyDollar[2].str, DbName: yyDollar[6].str, Filter: yyDollar[7].showFilter}
 			yyVAL.statement = &Show{Type: string(yyDollar[3].str), ShowTablesOpt: showTablesOpt, OnTable: yyDollar[5].tableName}
 		}
-	case 271:
+	case 274:
 		yyDollar = yyS[yypt-5 : yypt+1]
-//line sql.y:1526
+//line sql.y:1550
 		{
 			// this is ugly, but I couldn't find a better way for now
 			if yyDollar[3].str == "processlist" {
@@ -4579,650 +4598,656 @@ yydefault:
 				yyVAL.statement = &Show{Type: yyDollar[3].str, ShowTablesOpt: showTablesOpt}
 			}
 		}
-	case 272:
+	case 275:
 		yyDollar = yyS[yypt-4 : yypt+1]
-//line sql.y:1536
+//line sql.y:1560
 		{
 			yyVAL.statement = &Show{Scope: yyDollar[2].str, Type: string(yyDollar[3].bytes)}
 		}
-	case 273:
+	case 276:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:1540
+//line sql.y:1564
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes)}
 		}
-	case 274:
+	case 277:
 		yyDollar = yyS[yypt-4 : yypt+1]
-//line sql.y:1544
+//line sql.y:1568
 		{
 			// Cannot dereference $4 directly, or else the parser stackcannot be pooled. See yyParsePooled
 			showCollationFilterOpt := yyDollar[4].expr
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes), ShowCollationFilterOpt: &showCollationFilterOpt}
 		}
-	case 275:
+	case 278:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:1550
+//line sql.y:1574
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes)}
 		}
-	case 276:
+	case 279:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:1554
+//line sql.y:1578
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes)}
 		}
-	case 277:
+	case 280:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:1558
+//line sql.y:1582
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes)}
 		}
-	case 278:
+	case 281:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:1562
+//line sql.y:1586
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes)}
 		}
-	case 279:
+	case 282:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:1566
+//line sql.y:1590
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes) + " " + string(yyDollar[3].bytes)}
 		}
-	case 280:
+	case 283:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:1570
+//line sql.y:1594
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes) + " " + string(yyDollar[3].bytes)}
 		}
-	case 281:
+	case 284:
 		yyDollar = yyS[yypt-5 : yypt+1]
-//line sql.y:1574
+//line sql.y:1598
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes) + " " + string(yyDollar[3].bytes), OnTable: yyDollar[5].tableName}
 		}
-	case 282:
+	case 285:
+		yyDollar = yyS[yypt-5 : yypt+1]
+//line sql.y:1602
+		{
+			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes) + " " + string(yyDollar[3].bytes), OnTable: yyDollar[5].tableName}
+		}
+	case 286:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:1578
+//line sql.y:1606
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes)}
 		}
-	case 283:
+	case 287:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:1588
+//line sql.y:1616
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes)}
 		}
-	case 284:
+	case 288:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:1594
+//line sql.y:1622
 		{
 			yyVAL.str = string(yyDollar[1].bytes)
 		}
-	case 285:
+	case 289:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:1598
+//line sql.y:1626
 		{
 			yyVAL.str = string(yyDollar[1].bytes)
 		}
-	case 286:
+	case 290:
 		yyDollar = yyS[yypt-0 : yypt+1]
-//line sql.y:1604
+//line sql.y:1632
 		{
 			yyVAL.str = ""
 		}
-	case 287:
+	case 291:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:1608
+//line sql.y:1636
 		{
 			yyVAL.str = "full "
 		}
-	case 288:
+	case 292:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:1614
+//line sql.y:1642
 		{
 			yyVAL.str = string(yyDollar[1].bytes)
 		}
-	case 289:
+	case 293:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:1618
+//line sql.y:1646
 		{
 			yyVAL.str = string(yyDollar[1].bytes)
 		}
-	case 290:
+	case 294:
 		yyDollar = yyS[yypt-0 : yypt+1]
-//line sql.y:1624
+//line sql.y:1652
 		{
 			yyVAL.str = ""
 		}
-	case 291:
+	case 295:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:1628
+//line sql.y:1656
 		{
 			yyVAL.str = yyDollar[2].tableIdent.v
 		}
-	case 292:
+	case 296:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:1632
+//line sql.y:1660
 		{
 			yyVAL.str = yyDollar[2].tableIdent.v
 		}
-	case 293:
+	case 297:
 		yyDollar = yyS[yypt-0 : yypt+1]
-//line sql.y:1638
+//line sql.y:1666
 		{
 			yyVAL.showFilter = nil
 		}
-	case 294:
+	case 298:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:1642
+//line sql.y:1670
 		{
 			yyVAL.showFilter = &ShowFilter{Like: string(yyDollar[2].bytes)}
 		}
-	case 295:
+	case 299:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:1646
+//line sql.y:1674
 		{
 			yyVAL.showFilter = &ShowFilter{Filter: yyDollar[2].expr}
 		}
-	case 296:
+	case 300:
 		yyDollar = yyS[yypt-0 : yypt+1]
-//line sql.y:1652
+//line sql.y:1680
 		{
 			yyVAL.str = ""
 		}
-	case 297:
+	case 301:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:1656
+//line sql.y:1684
 		{
 			yyVAL.str = SessionStr
 		}
-	case 298:
+	case 302:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:1660
+//line sql.y:1688
 		{
 			yyVAL.str = GlobalStr
 		}
-	case 299:
+	case 303:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:1666
+//line sql.y:1694
 		{
 			yyVAL.statement = &Use{DBName: yyDollar[2].tableIdent}
 		}
-	case 300:
+	case 304:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:1670
+//line sql.y:1698
 		{
 			yyVAL.statement = &Use{DBName: TableIdent{v: ""}}
 		}
-	case 301:
+	case 305:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:1676
+//line sql.y:1704
 		{
 			yyVAL.statement = &Begin{}
 		}
-	case 302:
+	case 306:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:1680
+//line sql.y:1708
 		{
 			yyVAL.statement = &Begin{}
 		}
-	case 303:
+	case 307:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:1686
+//line sql.y:1714
 		{
 			yyVAL.statement = &Commit{}
 		}
-	case 304:
+	case 308:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:1692
+//line sql.y:1720
 		{
 			yyVAL.statement = &Rollback{}
 		}
-	case 305:
+	case 309:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:1698
+//line sql.y:1726
 		{
 			yyVAL.statement = &OtherRead{}
 		}
-	case 306:
+	case 310:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:1702
+//line sql.y:1730
 		{
 			yyVAL.statement = &OtherRead{}
 		}
-	case 307:
+	case 311:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:1706
+//line sql.y:1734
 		{
 			yyVAL.statement = &OtherRead{}
 		}
-	case 308:
+	case 312:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:1710
+//line sql.y:1738
 		{
 			yyVAL.statement = &OtherAdmin{}
 		}
-	case 309:
+	case 313:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:1714
+//line sql.y:1742
 		{
 			yyVAL.statement = &OtherAdmin{}
 		}
-	case 310:
+	case 314:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:1718
+//line sql.y:1746
 		{
 			yyVAL.statement = &OtherAdmin{}
 		}
-	case 311:
+	case 315:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:1722
+//line sql.y:1750
 		{
 			yyVAL.statement = &OtherAdmin{}
 		}
-	case 312:
+	case 316:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:1728
+//line sql.y:1756
 		{
 			yyVAL.statement = &DDL{Action: FlushStr}
 		}
-	case 313:
+	case 317:
 		yyDollar = yyS[yypt-0 : yypt+1]
-//line sql.y:1732
+//line sql.y:1760
 		{
 			setAllowComments(yylex, true)
 		}
-	case 314:
+	case 318:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:1736
+//line sql.y:1764
 		{
 			yyVAL.bytes2 = yyDollar[2].bytes2
 			setAllowComments(yylex, false)
 		}
-	case 315:
+	case 319:
 		yyDollar = yyS[yypt-0 : yypt+1]
-//line sql.y:1742
+//line sql.y:1770
 		{
 			yyVAL.bytes2 = nil
 		}
-	case 316:
+	case 320:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:1746
+//line sql.y:1774
 		{
 			yyVAL.bytes2 = append(yyDollar[1].bytes2, yyDollar[2].bytes)
 		}
-	case 317:
+	case 321:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:1752
+//line sql.y:1780
 		{
 			yyVAL.str = UnionStr
 		}
-	case 318:
+	case 322:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:1756
+//line sql.y:1784
 		{
 			yyVAL.str = UnionAllStr
 		}
-	case 319:
+	case 323:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:1760
+//line sql.y:1788
 		{
 			yyVAL.str = UnionDistinctStr
 		}
-	case 320:
+	case 324:
 		yyDollar = yyS[yypt-0 : yypt+1]
-//line sql.y:1765
+//line sql.y:1793
 		{
 			yyVAL.str = ""
 		}
-	case 321:
+	case 325:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:1769
+//line sql.y:1797
 		{
 			yyVAL.str = SQLNoCacheStr
 		}
-	case 322:
+	case 326:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:1773
+//line sql.y:1801
 		{
 			yyVAL.str = SQLCacheStr
 		}
-	case 323:
+	case 327:
 		yyDollar = yyS[yypt-0 : yypt+1]
-//line sql.y:1778
+//line sql.y:1806
 		{
 			yyVAL.str = ""
 		}
-	case 324:
+	case 328:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:1782
+//line sql.y:1810
 		{
 			yyVAL.str = DistinctStr
 		}
-	case 325:
+	case 329:
 		yyDollar = yyS[yypt-0 : yypt+1]
-//line sql.y:1787
+//line sql.y:1815
 		{
 			yyVAL.str = ""
 		}
-	case 326:
+	case 330:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:1791
+//line sql.y:1819
 		{
 			yyVAL.str = StraightJoinHint
 		}
-	case 327:
+	case 331:
 		yyDollar = yyS[yypt-0 : yypt+1]
-//line sql.y:1796
+//line sql.y:1824
 		{
 			yyVAL.selectExprs = nil
 		}
-	case 328:
+	case 332:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:1800
+//line sql.y:1828
 		{
 			yyVAL.selectExprs = yyDollar[1].selectExprs
 		}
-	case 329:
+	case 333:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:1806
+//line sql.y:1834
 		{
 			yyVAL.selectExprs = SelectExprs{yyDollar[1].selectExpr}
 		}
-	case 330:
+	case 334:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:1810
+//line sql.y:1838
 		{
 			yyVAL.selectExprs = append(yyVAL.selectExprs, yyDollar[3].selectExpr)
 		}
-	case 331:
+	case 335:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:1816
+//line sql.y:1844
 		{
 			yyVAL.selectExpr = &StarExpr{}
 		}
-	case 332:
+	case 336:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:1820
+//line sql.y:1848
 		{
 			yyVAL.selectExpr = &AliasedExpr{Expr: yyDollar[1].expr, As: yyDollar[2].colIdent}
 		}
-	case 333:
+	case 337:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:1824
+//line sql.y:1852
 		{
 			yyVAL.selectExpr = &StarExpr{TableName: TableName{Name: yyDollar[1].tableIdent}}
 		}
-	case 334:
+	case 338:
 		yyDollar = yyS[yypt-5 : yypt+1]
-//line sql.y:1828
+//line sql.y:1856
 		{
 			yyVAL.selectExpr = &StarExpr{TableName: TableName{Qualifier: yyDollar[1].tableIdent, Name: yyDollar[3].tableIdent}}
 		}
-	case 335:
+	case 339:
 		yyDollar = yyS[yypt-0 : yypt+1]
-//line sql.y:1833
+//line sql.y:1861
 		{
 			yyVAL.colIdent = ColIdent{}
 		}
-	case 336:
+	case 340:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:1837
+//line sql.y:1865
 		{
 			yyVAL.colIdent = yyDollar[1].colIdent
 		}
-	case 337:
+	case 341:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:1841
+//line sql.y:1869
 		{
 			yyVAL.colIdent = yyDollar[2].colIdent
 		}
-	case 339:
+	case 343:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:1848
+//line sql.y:1876
 		{
 			yyVAL.colIdent = NewColIdent(string(yyDollar[1].bytes))
 		}
-	case 340:
+	case 344:
 		yyDollar = yyS[yypt-0 : yypt+1]
-//line sql.y:1853
+//line sql.y:1881
 		{
 			yyVAL.tableExprs = TableExprs{&AliasedTableExpr{Expr: TableName{Name: NewTableIdent("dual")}}}
 		}
-	case 341:
+	case 345:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:1857
+//line sql.y:1885
 		{
 			yyVAL.tableExprs = yyDollar[2].tableExprs
 		}
-	case 342:
+	case 346:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:1863
+//line sql.y:1891
 		{
 			yyVAL.tableExprs = TableExprs{yyDollar[1].tableExpr}
 		}
-	case 343:
+	case 347:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:1867
+//line sql.y:1895
 		{
 			yyVAL.tableExprs = append(yyVAL.tableExprs, yyDollar[3].tableExpr)
 		}
-	case 346:
+	case 350:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:1877
+//line sql.y:1905
 		{
 			yyVAL.tableExpr = yyDollar[1].aliasedTableName
 		}
-	case 347:
+	case 351:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:1881
+//line sql.y:1909
 		{
 			yyVAL.tableExpr = &AliasedTableExpr{Expr: yyDollar[1].subquery, As: yyDollar[3].tableIdent}
 		}
-	case 348:
+	case 352:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:1885
+//line sql.y:1913
 		{
 			// missed alias for subquery
 			yylex.Error("Every derived table must have its own alias")
 			return 1
 		}
-	case 349:
+	case 353:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:1891
+//line sql.y:1919
 		{
 			yyVAL.tableExpr = &ParenTableExpr{Exprs: yyDollar[2].tableExprs}
 		}
-	case 350:
+	case 354:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:1897
+//line sql.y:1925
 		{
 			yyVAL.aliasedTableName = &AliasedTableExpr{Expr: yyDollar[1].tableName, As: yyDollar[2].tableIdent, Hints: yyDollar[3].indexHints}
 		}
-	case 351:
+	case 355:
 		yyDollar = yyS[yypt-7 : yypt+1]
-//line sql.y:1901
+//line sql.y:1929
 		{
 			yyVAL.aliasedTableName = &AliasedTableExpr{Expr: yyDollar[1].tableName, Partitions: yyDollar[4].partitions, As: yyDollar[6].tableIdent, Hints: yyDollar[7].indexHints}
 		}
-	case 352:
+	case 356:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:1907
+//line sql.y:1935
 		{
 			yyVAL.columns = Columns{yyDollar[1].colIdent}
 		}
-	case 353:
+	case 357:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:1911
+//line sql.y:1939
 		{
 			yyVAL.columns = append(yyVAL.columns, yyDollar[3].colIdent)
 		}
-	case 354:
+	case 358:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:1917
+//line sql.y:1945
 		{
 			yyVAL.partitions = Partitions{yyDollar[1].colIdent}
 		}
-	case 355:
+	case 359:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:1921
+//line sql.y:1949
 		{
 			yyVAL.partitions = append(yyVAL.partitions, yyDollar[3].colIdent)
 		}
-	case 356:
+	case 360:
 		yyDollar = yyS[yypt-4 : yypt+1]
-//line sql.y:1934
+//line sql.y:1962
 		{
 			yyVAL.tableExpr = &JoinTableExpr{LeftExpr: yyDollar[1].tableExpr, Join: yyDollar[2].str, RightExpr: yyDollar[3].tableExpr, Condition: yyDollar[4].joinCondition}
 		}
-	case 357:
+	case 361:
 		yyDollar = yyS[yypt-4 : yypt+1]
-//line sql.y:1938
+//line sql.y:1966
 		{
 			yyVAL.tableExpr = &JoinTableExpr{LeftExpr: yyDollar[1].tableExpr, Join: yyDollar[2].str, RightExpr: yyDollar[3].tableExpr, Condition: yyDollar[4].joinCondition}
 		}
-	case 358:
+	case 362:
 		yyDollar = yyS[yypt-4 : yypt+1]
-//line sql.y:1942
+//line sql.y:1970
 		{
 			yyVAL.tableExpr = &JoinTableExpr{LeftExpr: yyDollar[1].tableExpr, Join: yyDollar[2].str, RightExpr: yyDollar[3].tableExpr, Condition: yyDollar[4].joinCondition}
 		}
-	case 359:
+	case 363:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:1946
+//line sql.y:1974
 		{
 			yyVAL.tableExpr = &JoinTableExpr{LeftExpr: yyDollar[1].tableExpr, Join: yyDollar[2].str, RightExpr: yyDollar[3].tableExpr}
 		}
-	case 360:
+	case 364:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:1952
+//line sql.y:1980
 		{
 			yyVAL.joinCondition = JoinCondition{On: yyDollar[2].expr}
 		}
-	case 361:
+	case 365:
 		yyDollar = yyS[yypt-4 : yypt+1]
-//line sql.y:1954
+//line sql.y:1982
 		{
 			yyVAL.joinCondition = JoinCondition{Using: yyDollar[3].columns}
 		}
-	case 362:
+	case 366:
 		yyDollar = yyS[yypt-0 : yypt+1]
-//line sql.y:1958
+//line sql.y:1986
 		{
 			yyVAL.joinCondition = JoinCondition{}
 		}
-	case 363:
+	case 367:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:1960
+//line sql.y:1988
 		{
 			yyVAL.joinCondition = yyDollar[1].joinCondition
 		}
-	case 364:
+	case 368:
 		yyDollar = yyS[yypt-0 : yypt+1]
-//line sql.y:1964
+//line sql.y:1992
 		{
 			yyVAL.joinCondition = JoinCondition{}
 		}
-	case 365:
+	case 369:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:1966
+//line sql.y:1994
 		{
 			yyVAL.joinCondition = JoinCondition{On: yyDollar[2].expr}
 		}
-	case 366:
+	case 370:
 		yyDollar = yyS[yypt-0 : yypt+1]
-//line sql.y:1969
+//line sql.y:1997
 		{
 			yyVAL.empty = struct{}{}
 		}
-	case 367:
+	case 371:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:1971
+//line sql.y:1999
 		{
 			yyVAL.empty = struct{}{}
 		}
-	case 368:
+	case 372:
 		yyDollar = yyS[yypt-0 : yypt+1]
-//line sql.y:1974
+//line sql.y:2002
 		{
 			yyVAL.tableIdent = NewTableIdent("")
 		}
-	case 369:
+	case 373:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:1978
+//line sql.y:2006
 		{
 			yyVAL.tableIdent = yyDollar[1].tableIdent
 		}
-	case 370:
+	case 374:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:1982
+//line sql.y:2010
 		{
 			yyVAL.tableIdent = yyDollar[2].tableIdent
 		}
-	case 372:
+	case 376:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:1989
+//line sql.y:2017
 		{
 			yyVAL.tableIdent = NewTableIdent(string(yyDollar[1].bytes))
 		}
-	case 373:
+	case 377:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:1995
+//line sql.y:2023
 		{
 			yyVAL.str = JoinStr
 		}
-	case 374:
+	case 378:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:1999
+//line sql.y:2027
 		{
 			yyVAL.str = JoinStr
 		}
-	case 375:
+	case 379:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2003
+//line sql.y:2031
 		{
 			yyVAL.str = JoinStr
 		}
-	case 376:
+	case 380:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2009
+//line sql.y:2037
 		{
 			yyVAL.str = StraightJoinStr
 		}
-	case 377:
+	case 381:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2015
+//line sql.y:2043
 		{
 			yyVAL.str = LeftJoinStr
 		}
-	case 378:
+	case 382:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2019
+//line sql.y:2047
 		{
 			yyVAL.str = LeftJoinStr
 		}
-	case 379:
+	case 383:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2023
+//line sql.y:2051
 		{
 			yyVAL.str = RightJoinStr
 		}
-	case 380:
+	case 384:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2027
+//line sql.y:2055
 		{
 			yyVAL.str = RightJoinStr
 		}
-	case 381:
+	case 385:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2033
+//line sql.y:2061
 		{
 			yyVAL.str = NaturalJoinStr
 		}
-	case 382:
+	case 386:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2037
+//line sql.y:2065
 		{
 			if yyDollar[2].str == LeftJoinStr {
 				yyVAL.str = NaturalLeftJoinStr
@@ -5230,459 +5255,459 @@ yydefault:
 				yyVAL.str = NaturalRightJoinStr
 			}
 		}
-	case 383:
+	case 387:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2047
+//line sql.y:2075
 		{
 			yyVAL.tableName = yyDollar[2].tableName
 		}
-	case 384:
+	case 388:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2051
+//line sql.y:2079
 		{
 			yyVAL.tableName = yyDollar[1].tableName
 		}
-	case 385:
+	case 389:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2057
+//line sql.y:2085
 		{
 			yyVAL.tableName = TableName{Name: yyDollar[1].tableIdent}
 		}
-	case 386:
+	case 390:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2061
+//line sql.y:2089
 		{
 			yyVAL.tableName = TableName{Qualifier: yyDollar[1].tableIdent, Name: yyDollar[3].tableIdent}
 		}
-	case 387:
+	case 391:
 		yyDollar = yyS[yypt-0 : yypt+1]
-//line sql.y:2066
+//line sql.y:2094
 		{
 			yyVAL.indexHints = nil
 		}
-	case 388:
+	case 392:
 		yyDollar = yyS[yypt-5 : yypt+1]
-//line sql.y:2070
+//line sql.y:2098
 		{
 			yyVAL.indexHints = &IndexHints{Type: UseStr, Indexes: yyDollar[4].columns}
 		}
-	case 389:
+	case 393:
 		yyDollar = yyS[yypt-5 : yypt+1]
-//line sql.y:2074
+//line sql.y:2102
 		{
 			yyVAL.indexHints = &IndexHints{Type: IgnoreStr, Indexes: yyDollar[4].columns}
 		}
-	case 390:
+	case 394:
 		yyDollar = yyS[yypt-5 : yypt+1]
-//line sql.y:2078
+//line sql.y:2106
 		{
 			yyVAL.indexHints = &IndexHints{Type: ForceStr, Indexes: yyDollar[4].columns}
 		}
-	case 391:
+	case 395:
 		yyDollar = yyS[yypt-0 : yypt+1]
-//line sql.y:2083
+//line sql.y:2111
 		{
 			yyVAL.expr = nil
 		}
-	case 392:
+	case 396:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2087
+//line sql.y:2115
 		{
 			yyVAL.expr = yyDollar[2].expr
 		}
-	case 393:
+	case 397:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2093
+//line sql.y:2121
 		{
 			yyVAL.expr = yyDollar[1].expr
 		}
-	case 394:
+	case 398:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2097
+//line sql.y:2125
 		{
 			yyVAL.expr = &AndExpr{Left: yyDollar[1].expr, Right: yyDollar[3].expr}
 		}
-	case 395:
+	case 399:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2101
+//line sql.y:2129
 		{
 			yyVAL.expr = &OrExpr{Left: yyDollar[1].expr, Right: yyDollar[3].expr}
 		}
-	case 396:
+	case 400:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2105
+//line sql.y:2133
 		{
 			yyVAL.expr = &NotExpr{Expr: yyDollar[2].expr}
 		}
-	case 397:
+	case 401:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2109
+//line sql.y:2137
 		{
 			yyVAL.expr = &IsExpr{Operator: yyDollar[3].str, Expr: yyDollar[1].expr}
 		}
-	case 398:
+	case 402:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2113
+//line sql.y:2141
 		{
 			yyVAL.expr = yyDollar[1].expr
 		}
-	case 399:
+	case 403:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2117
+//line sql.y:2145
 		{
 			yyVAL.expr = &Default{ColName: yyDollar[2].str}
 		}
-	case 400:
+	case 404:
 		yyDollar = yyS[yypt-0 : yypt+1]
-//line sql.y:2123
+//line sql.y:2151
 		{
 			yyVAL.str = ""
 		}
-	case 401:
+	case 405:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2127
+//line sql.y:2155
 		{
 			yyVAL.str = string(yyDollar[2].bytes)
 		}
-	case 402:
+	case 406:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2133
+//line sql.y:2161
 		{
 			yyVAL.boolVal = BoolVal(true)
 		}
-	case 403:
+	case 407:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2137
+//line sql.y:2165
 		{
 			yyVAL.boolVal = BoolVal(false)
 		}
-	case 404:
+	case 408:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2143
+//line sql.y:2171
 		{
 			yyVAL.expr = &ComparisonExpr{Left: yyDollar[1].expr, Operator: yyDollar[2].str, Right: yyDollar[3].expr}
 		}
-	case 405:
+	case 409:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2147
+//line sql.y:2175
 		{
 			yyVAL.expr = &ComparisonExpr{Left: yyDollar[1].expr, Operator: InStr, Right: yyDollar[3].colTuple}
 		}
-	case 406:
+	case 410:
 		yyDollar = yyS[yypt-4 : yypt+1]
-//line sql.y:2151
+//line sql.y:2179
 		{
 			yyVAL.expr = &ComparisonExpr{Left: yyDollar[1].expr, Operator: NotInStr, Right: yyDollar[4].colTuple}
 		}
-	case 407:
+	case 411:
 		yyDollar = yyS[yypt-4 : yypt+1]
-//line sql.y:2155
+//line sql.y:2183
 		{
 			yyVAL.expr = &ComparisonExpr{Left: yyDollar[1].expr, Operator: LikeStr, Right: yyDollar[3].expr, Escape: yyDollar[4].expr}
 		}
-	case 408:
+	case 412:
 		yyDollar = yyS[yypt-5 : yypt+1]
-//line sql.y:2159
+//line sql.y:2187
 		{
 			yyVAL.expr = &ComparisonExpr{Left: yyDollar[1].expr, Operator: NotLikeStr, Right: yyDollar[4].expr, Escape: yyDollar[5].expr}
 		}
-	case 409:
+	case 413:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2163
+//line sql.y:2191
 		{
 			yyVAL.expr = &ComparisonExpr{Left: yyDollar[1].expr, Operator: RegexpStr, Right: yyDollar[3].expr}
 		}
-	case 410:
+	case 414:
 		yyDollar = yyS[yypt-4 : yypt+1]
-//line sql.y:2167
+//line sql.y:2195
 		{
 			yyVAL.expr = &ComparisonExpr{Left: yyDollar[1].expr, Operator: NotRegexpStr, Right: yyDollar[4].expr}
 		}
-	case 411:
+	case 415:
 		yyDollar = yyS[yypt-5 : yypt+1]
-//line sql.y:2171
+//line sql.y:2199
 		{
 			yyVAL.expr = &RangeCond{Left: yyDollar[1].expr, Operator: BetweenStr, From: yyDollar[3].expr, To: yyDollar[5].expr}
 		}
-	case 412:
+	case 416:
 		yyDollar = yyS[yypt-6 : yypt+1]
-//line sql.y:2175
+//line sql.y:2203
 		{
 			yyVAL.expr = &RangeCond{Left: yyDollar[1].expr, Operator: NotBetweenStr, From: yyDollar[4].expr, To: yyDollar[6].expr}
 		}
-	case 413:
+	case 417:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2179
+//line sql.y:2207
 		{
 			yyVAL.expr = &ExistsExpr{Subquery: yyDollar[2].subquery}
 		}
-	case 414:
+	case 418:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2185
+//line sql.y:2213
 		{
 			yyVAL.str = IsNullStr
 		}
-	case 415:
+	case 419:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2189
+//line sql.y:2217
 		{
 			yyVAL.str = IsNotNullStr
 		}
-	case 416:
+	case 420:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2193
+//line sql.y:2221
 		{
 			yyVAL.str = IsTrueStr
 		}
-	case 417:
+	case 421:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2197
+//line sql.y:2225
 		{
 			yyVAL.str = IsNotTrueStr
 		}
-	case 418:
+	case 422:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2201
+//line sql.y:2229
 		{
 			yyVAL.str = IsFalseStr
 		}
-	case 419:
+	case 423:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2205
+//line sql.y:2233
 		{
 			yyVAL.str = IsNotFalseStr
 		}
-	case 420:
+	case 424:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2211
+//line sql.y:2239
 		{
 			yyVAL.str = EqualStr
 		}
-	case 421:
+	case 425:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2215
+//line sql.y:2243
 		{
 			yyVAL.str = LessThanStr
 		}
-	case 422:
+	case 426:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2219
+//line sql.y:2247
 		{
 			yyVAL.str = GreaterThanStr
 		}
-	case 423:
+	case 427:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2223
+//line sql.y:2251
 		{
 			yyVAL.str = LessEqualStr
 		}
-	case 424:
+	case 428:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2227
+//line sql.y:2255
 		{
 			yyVAL.str = GreaterEqualStr
 		}
-	case 425:
+	case 429:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2231
+//line sql.y:2259
 		{
 			yyVAL.str = NotEqualStr
 		}
-	case 426:
+	case 430:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2235
+//line sql.y:2263
 		{
 			yyVAL.str = NullSafeEqualStr
 		}
-	case 427:
+	case 431:
 		yyDollar = yyS[yypt-0 : yypt+1]
-//line sql.y:2240
+//line sql.y:2268
 		{
 			yyVAL.expr = nil
 		}
-	case 428:
+	case 432:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2244
+//line sql.y:2272
 		{
 			yyVAL.expr = yyDollar[2].expr
 		}
-	case 429:
+	case 433:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2250
+//line sql.y:2278
 		{
 			yyVAL.colTuple = yyDollar[1].valTuple
 		}
-	case 430:
+	case 434:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2254
+//line sql.y:2282
 		{
 			yyVAL.colTuple = yyDollar[1].subquery
 		}
-	case 431:
+	case 435:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2258
+//line sql.y:2286
 		{
 			yyVAL.colTuple = ListArg(yyDollar[1].bytes)
 		}
-	case 432:
+	case 436:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2264
+//line sql.y:2292
 		{
 			yyVAL.subquery = &Subquery{yyDollar[2].selStmt}
 		}
-	case 433:
+	case 437:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2270
+//line sql.y:2298
 		{
 			yyVAL.exprs = Exprs{yyDollar[1].expr}
 		}
-	case 434:
+	case 438:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2274
+//line sql.y:2302
 		{
 			yyVAL.exprs = append(yyDollar[1].exprs, yyDollar[3].expr)
 		}
-	case 435:
+	case 439:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2280
+//line sql.y:2308
 		{
 			yyVAL.expr = yyDollar[1].expr
 		}
-	case 436:
+	case 440:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2284
+//line sql.y:2312
 		{
 			yyVAL.expr = yyDollar[1].boolVal
 		}
-	case 437:
+	case 441:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2288
+//line sql.y:2316
 		{
 			yyVAL.expr = yyDollar[1].colName
 		}
-	case 438:
+	case 442:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2292
+//line sql.y:2320
 		{
 			yyVAL.expr = yyDollar[1].expr
 		}
-	case 439:
+	case 443:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2296
+//line sql.y:2324
 		{
 			yyVAL.expr = yyDollar[1].subquery
 		}
-	case 440:
+	case 444:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2300
+//line sql.y:2328
 		{
 			yyVAL.expr = &BinaryExpr{Left: yyDollar[1].expr, Operator: BitAndStr, Right: yyDollar[3].expr}
 		}
-	case 441:
+	case 445:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2304
+//line sql.y:2332
 		{
 			yyVAL.expr = &BinaryExpr{Left: yyDollar[1].expr, Operator: BitOrStr, Right: yyDollar[3].expr}
 		}
-	case 442:
+	case 446:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2308
+//line sql.y:2336
 		{
 			yyVAL.expr = &BinaryExpr{Left: yyDollar[1].expr, Operator: BitXorStr, Right: yyDollar[3].expr}
 		}
-	case 443:
+	case 447:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2312
+//line sql.y:2340
 		{
 			yyVAL.expr = &BinaryExpr{Left: yyDollar[1].expr, Operator: PlusStr, Right: yyDollar[3].expr}
 		}
-	case 444:
+	case 448:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2316
+//line sql.y:2344
 		{
 			yyVAL.expr = &BinaryExpr{Left: yyDollar[1].expr, Operator: MinusStr, Right: yyDollar[3].expr}
 		}
-	case 445:
+	case 449:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2320
+//line sql.y:2348
 		{
 			yyVAL.expr = &BinaryExpr{Left: yyDollar[1].expr, Operator: MultStr, Right: yyDollar[3].expr}
 		}
-	case 446:
+	case 450:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2324
+//line sql.y:2352
 		{
 			yyVAL.expr = &BinaryExpr{Left: yyDollar[1].expr, Operator: DivStr, Right: yyDollar[3].expr}
 		}
-	case 447:
+	case 451:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2328
+//line sql.y:2356
 		{
 			yyVAL.expr = &BinaryExpr{Left: yyDollar[1].expr, Operator: IntDivStr, Right: yyDollar[3].expr}
 		}
-	case 448:
+	case 452:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2332
+//line sql.y:2360
 		{
 			yyVAL.expr = &BinaryExpr{Left: yyDollar[1].expr, Operator: ModStr, Right: yyDollar[3].expr}
 		}
-	case 449:
+	case 453:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2336
+//line sql.y:2364
 		{
 			yyVAL.expr = &BinaryExpr{Left: yyDollar[1].expr, Operator: ModStr, Right: yyDollar[3].expr}
 		}
-	case 450:
+	case 454:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2340
+//line sql.y:2368
 		{
 			yyVAL.expr = &BinaryExpr{Left: yyDollar[1].expr, Operator: ShiftLeftStr, Right: yyDollar[3].expr}
 		}
-	case 451:
+	case 455:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2344
+//line sql.y:2372
 		{
 			yyVAL.expr = &BinaryExpr{Left: yyDollar[1].expr, Operator: ShiftRightStr, Right: yyDollar[3].expr}
 		}
-	case 452:
+	case 456:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2348
+//line sql.y:2376
 		{
 			yyVAL.expr = &BinaryExpr{Left: yyDollar[1].colName, Operator: JSONExtractOp, Right: yyDollar[3].expr}
 		}
-	case 453:
+	case 457:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2352
+//line sql.y:2380
 		{
 			yyVAL.expr = &BinaryExpr{Left: yyDollar[1].colName, Operator: JSONUnquoteExtractOp, Right: yyDollar[3].expr}
 		}
-	case 454:
+	case 458:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2356
+//line sql.y:2384
 		{
 			yyVAL.expr = &CollateExpr{Expr: yyDollar[1].expr, Charset: yyDollar[3].str}
 		}
-	case 455:
+	case 459:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2360
+//line sql.y:2388
 		{
 			yyVAL.expr = &UnaryExpr{Operator: BinaryStr, Expr: yyDollar[2].expr}
 		}
-	case 456:
+	case 460:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2364
+//line sql.y:2392
 		{
 			yyVAL.expr = &UnaryExpr{Operator: UBinaryStr, Expr: yyDollar[2].expr}
 		}
-	case 457:
+	case 461:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2368
+//line sql.y:2396
 		{
 			yyVAL.expr = &UnaryExpr{Operator: Utf8mb4Str, Expr: yyDollar[2].expr}
 		}
-	case 458:
+	case 462:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2372
+//line sql.y:2400
 		{
 			if num, ok := yyDollar[2].expr.(*SQLVal); ok && num.Type == IntVal {
 				yyVAL.expr = num
@@ -5690,9 +5715,9 @@ yydefault:
 				yyVAL.expr = &UnaryExpr{Operator: UPlusStr, Expr: yyDollar[2].expr}
 			}
 		}
-	case 459:
+	case 463:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2380
+//line sql.y:2408
 		{
 			if num, ok := yyDollar[2].expr.(*SQLVal); ok && num.Type == IntVal {
 				// Handle double negative
@@ -5706,21 +5731,21 @@ yydefault:
 				yyVAL.expr = &UnaryExpr{Operator: UMinusStr, Expr: yyDollar[2].expr}
 			}
 		}
-	case 460:
+	case 464:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2394
+//line sql.y:2422
 		{
 			yyVAL.expr = &UnaryExpr{Operator: TildaStr, Expr: yyDollar[2].expr}
 		}
-	case 461:
+	case 465:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2398
+//line sql.y:2426
 		{
 			yyVAL.expr = &UnaryExpr{Operator: BangStr, Expr: yyDollar[2].expr}
 		}
-	case 462:
+	case 466:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2402
+//line sql.y:2430
 		{
 			// This rule prevents the usage of INTERVAL
 			// as a function. If support is needed for that,
@@ -5728,521 +5753,521 @@ yydefault:
 			// will be non-trivial because of grammar conflicts.
 			yyVAL.expr = &IntervalExpr{Expr: yyDollar[2].expr, Unit: yyDollar[3].colIdent.String()}
 		}
-	case 467:
+	case 471:
 		yyDollar = yyS[yypt-4 : yypt+1]
-//line sql.y:2420
+//line sql.y:2448
 		{
 			yyVAL.expr = &FuncExpr{Name: yyDollar[1].colIdent, Exprs: yyDollar[3].selectExprs}
 		}
-	case 468:
+	case 472:
 		yyDollar = yyS[yypt-5 : yypt+1]
-//line sql.y:2424
+//line sql.y:2452
 		{
 			yyVAL.expr = &FuncExpr{Name: yyDollar[1].colIdent, Distinct: true, Exprs: yyDollar[4].selectExprs}
 		}
-	case 469:
+	case 473:
 		yyDollar = yyS[yypt-6 : yypt+1]
-//line sql.y:2428
+//line sql.y:2456
 		{
 			yyVAL.expr = &FuncExpr{Qualifier: yyDollar[1].tableIdent, Name: yyDollar[3].colIdent, Exprs: yyDollar[5].selectExprs}
 		}
-	case 470:
+	case 474:
 		yyDollar = yyS[yypt-4 : yypt+1]
-//line sql.y:2438
+//line sql.y:2466
 		{
 			yyVAL.expr = &FuncExpr{Name: NewColIdent("left"), Exprs: yyDollar[3].selectExprs}
 		}
-	case 471:
+	case 475:
 		yyDollar = yyS[yypt-4 : yypt+1]
-//line sql.y:2442
+//line sql.y:2470
 		{
 			yyVAL.expr = &FuncExpr{Name: NewColIdent("right"), Exprs: yyDollar[3].selectExprs}
 		}
-	case 472:
+	case 476:
 		yyDollar = yyS[yypt-6 : yypt+1]
-//line sql.y:2446
+//line sql.y:2474
 		{
 			yyVAL.expr = &ConvertExpr{Expr: yyDollar[3].expr, Type: yyDollar[5].convertType}
 		}
-	case 473:
+	case 477:
 		yyDollar = yyS[yypt-6 : yypt+1]
-//line sql.y:2450
+//line sql.y:2478
 		{
 			yyVAL.expr = &ConvertExpr{Expr: yyDollar[3].expr, Type: yyDollar[5].convertType}
 		}
-	case 474:
+	case 478:
 		yyDollar = yyS[yypt-6 : yypt+1]
-//line sql.y:2454
+//line sql.y:2482
 		{
 			yyVAL.expr = &ConvertUsingExpr{Expr: yyDollar[3].expr, Type: yyDollar[5].str}
 		}
-	case 475:
+	case 479:
 		yyDollar = yyS[yypt-6 : yypt+1]
-//line sql.y:2458
+//line sql.y:2486
 		{
 			yyVAL.expr = &SubstrExpr{Name: yyDollar[3].colName, From: yyDollar[5].expr, To: nil}
 		}
-	case 476:
+	case 480:
 		yyDollar = yyS[yypt-8 : yypt+1]
-//line sql.y:2462
+//line sql.y:2490
 		{
 			yyVAL.expr = &SubstrExpr{Name: yyDollar[3].colName, From: yyDollar[5].expr, To: yyDollar[7].expr}
 		}
-	case 477:
+	case 481:
 		yyDollar = yyS[yypt-8 : yypt+1]
-//line sql.y:2466
+//line sql.y:2494
 		{
 			yyVAL.expr = &SubstrExpr{Name: yyDollar[3].colName, From: yyDollar[5].expr, To: yyDollar[7].expr}
 		}
-	case 478:
+	case 482:
 		yyDollar = yyS[yypt-6 : yypt+1]
-//line sql.y:2470
+//line sql.y:2498
 		{
 			yyVAL.expr = &SubstrExpr{Name: yyDollar[3].colName, From: yyDollar[5].expr, To: nil}
 		}
-	case 479:
+	case 483:
 		yyDollar = yyS[yypt-8 : yypt+1]
-//line sql.y:2474
+//line sql.y:2502
 		{
 			yyVAL.expr = &SubstrExpr{Name: yyDollar[3].colName, From: yyDollar[5].expr, To: yyDollar[7].expr}
 		}
-	case 480:
+	case 484:
 		yyDollar = yyS[yypt-8 : yypt+1]
-//line sql.y:2478
+//line sql.y:2506
 		{
 			yyVAL.expr = &SubstrExpr{Name: yyDollar[3].colName, From: yyDollar[5].expr, To: yyDollar[7].expr}
 		}
-	case 481:
+	case 485:
 		yyDollar = yyS[yypt-6 : yypt+1]
-//line sql.y:2482
+//line sql.y:2510
 		{
 			yyVAL.expr = &SubstrExpr{StrVal: NewStrVal(yyDollar[3].bytes), From: yyDollar[5].expr, To: nil}
 		}
-	case 482:
+	case 486:
 		yyDollar = yyS[yypt-8 : yypt+1]
-//line sql.y:2486
+//line sql.y:2514
 		{
 			yyVAL.expr = &SubstrExpr{StrVal: NewStrVal(yyDollar[3].bytes), From: yyDollar[5].expr, To: yyDollar[7].expr}
 		}
-	case 483:
+	case 487:
 		yyDollar = yyS[yypt-8 : yypt+1]
-//line sql.y:2490
+//line sql.y:2518
 		{
 			yyVAL.expr = &SubstrExpr{StrVal: NewStrVal(yyDollar[3].bytes), From: yyDollar[5].expr, To: yyDollar[7].expr}
 		}
-	case 484:
+	case 488:
 		yyDollar = yyS[yypt-6 : yypt+1]
-//line sql.y:2494
+//line sql.y:2522
 		{
 			yyVAL.expr = &SubstrExpr{StrVal: NewStrVal(yyDollar[3].bytes), From: yyDollar[5].expr, To: nil}
 		}
-	case 485:
+	case 489:
 		yyDollar = yyS[yypt-8 : yypt+1]
-//line sql.y:2498
+//line sql.y:2526
 		{
 			yyVAL.expr = &SubstrExpr{StrVal: NewStrVal(yyDollar[3].bytes), From: yyDollar[5].expr, To: yyDollar[7].expr}
 		}
-	case 486:
+	case 490:
 		yyDollar = yyS[yypt-8 : yypt+1]
-//line sql.y:2502
+//line sql.y:2530
 		{
 			yyVAL.expr = &SubstrExpr{StrVal: NewStrVal(yyDollar[3].bytes), From: yyDollar[5].expr, To: yyDollar[7].expr}
 		}
-	case 487:
+	case 491:
 		yyDollar = yyS[yypt-9 : yypt+1]
-//line sql.y:2506
+//line sql.y:2534
 		{
 			yyVAL.expr = &MatchExpr{Columns: yyDollar[3].selectExprs, Expr: yyDollar[7].expr, Option: yyDollar[8].str}
 		}
-	case 488:
+	case 492:
 		yyDollar = yyS[yypt-7 : yypt+1]
-//line sql.y:2510
+//line sql.y:2538
 		{
 			yyVAL.expr = &GroupConcatExpr{Distinct: yyDollar[3].str, Exprs: yyDollar[4].selectExprs, OrderBy: yyDollar[5].orderBy, Separator: yyDollar[6].str}
 		}
-	case 489:
+	case 493:
 		yyDollar = yyS[yypt-5 : yypt+1]
-//line sql.y:2514
+//line sql.y:2542
 		{
 			yyVAL.expr = &CaseExpr{Expr: yyDollar[2].expr, Whens: yyDollar[3].whens, Else: yyDollar[4].expr}
 		}
-	case 490:
+	case 494:
 		yyDollar = yyS[yypt-4 : yypt+1]
-//line sql.y:2518
+//line sql.y:2546
 		{
 			yyVAL.expr = &ValuesFuncExpr{Name: yyDollar[3].colName}
 		}
-	case 491:
+	case 495:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2528
+//line sql.y:2556
 		{
 			yyVAL.expr = &FuncExpr{Name: NewColIdent("current_timestamp")}
 		}
-	case 492:
+	case 496:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2532
+//line sql.y:2560
 		{
 			yyVAL.expr = &FuncExpr{Name: NewColIdent("utc_timestamp")}
 		}
-	case 493:
+	case 497:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2536
+//line sql.y:2564
 		{
 			yyVAL.expr = &FuncExpr{Name: NewColIdent("utc_time")}
 		}
-	case 494:
+	case 498:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2541
+//line sql.y:2569
 		{
 			yyVAL.expr = &FuncExpr{Name: NewColIdent("utc_date")}
 		}
-	case 495:
+	case 499:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2546
+//line sql.y:2574
 		{
 			yyVAL.expr = &FuncExpr{Name: NewColIdent("localtime")}
 		}
-	case 496:
+	case 500:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2551
+//line sql.y:2579
 		{
 			yyVAL.expr = &FuncExpr{Name: NewColIdent("localtimestamp")}
 		}
-	case 497:
+	case 501:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2557
+//line sql.y:2585
 		{
 			yyVAL.expr = &FuncExpr{Name: NewColIdent("current_date")}
 		}
-	case 498:
+	case 502:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2562
+//line sql.y:2590
 		{
 			yyVAL.expr = &FuncExpr{Name: NewColIdent("current_time")}
 		}
-	case 499:
+	case 503:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2567
+//line sql.y:2595
 		{
 			yyVAL.expr = &CurTimeFuncExpr{Name: NewColIdent("current_timestamp"), Fsp: yyDollar[2].expr}
 		}
-	case 500:
+	case 504:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2571
+//line sql.y:2599
 		{
 			yyVAL.expr = &CurTimeFuncExpr{Name: NewColIdent("utc_timestamp"), Fsp: yyDollar[2].expr}
 		}
-	case 501:
+	case 505:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2575
+//line sql.y:2603
 		{
 			yyVAL.expr = &CurTimeFuncExpr{Name: NewColIdent("utc_time"), Fsp: yyDollar[2].expr}
 		}
-	case 502:
+	case 506:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2580
+//line sql.y:2608
 		{
 			yyVAL.expr = &CurTimeFuncExpr{Name: NewColIdent("localtime"), Fsp: yyDollar[2].expr}
 		}
-	case 503:
+	case 507:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2585
+//line sql.y:2613
 		{
 			yyVAL.expr = &CurTimeFuncExpr{Name: NewColIdent("localtimestamp"), Fsp: yyDollar[2].expr}
 		}
-	case 504:
+	case 508:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2590
+//line sql.y:2618
 		{
 			yyVAL.expr = &CurTimeFuncExpr{Name: NewColIdent("current_time"), Fsp: yyDollar[2].expr}
 		}
-	case 505:
+	case 509:
 		yyDollar = yyS[yypt-8 : yypt+1]
-//line sql.y:2594
+//line sql.y:2622
 		{
 			yyVAL.expr = &TimestampFuncExpr{Name: string("timestampadd"), Unit: yyDollar[3].colIdent.String(), Expr1: yyDollar[5].expr, Expr2: yyDollar[7].expr}
 		}
-	case 506:
+	case 510:
 		yyDollar = yyS[yypt-8 : yypt+1]
-//line sql.y:2598
+//line sql.y:2626
 		{
 			yyVAL.expr = &TimestampFuncExpr{Name: string("timestampdiff"), Unit: yyDollar[3].colIdent.String(), Expr1: yyDollar[5].expr, Expr2: yyDollar[7].expr}
 		}
-	case 509:
+	case 513:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2608
+//line sql.y:2636
 		{
 			yyVAL.expr = yyDollar[2].expr
 		}
-	case 510:
+	case 514:
 		yyDollar = yyS[yypt-4 : yypt+1]
-//line sql.y:2618
+//line sql.y:2646
 		{
 			yyVAL.expr = &FuncExpr{Name: NewColIdent("if"), Exprs: yyDollar[3].selectExprs}
 		}
-	case 511:
+	case 515:
 		yyDollar = yyS[yypt-4 : yypt+1]
-//line sql.y:2622
+//line sql.y:2650
 		{
 			yyVAL.expr = &FuncExpr{Name: NewColIdent("database"), Exprs: yyDollar[3].selectExprs}
 		}
-	case 512:
+	case 516:
 		yyDollar = yyS[yypt-4 : yypt+1]
-//line sql.y:2626
+//line sql.y:2654
 		{
 			yyVAL.expr = &FuncExpr{Name: NewColIdent("mod"), Exprs: yyDollar[3].selectExprs}
 		}
-	case 513:
+	case 517:
 		yyDollar = yyS[yypt-4 : yypt+1]
-//line sql.y:2630
+//line sql.y:2658
 		{
 			yyVAL.expr = &FuncExpr{Name: NewColIdent("replace"), Exprs: yyDollar[3].selectExprs}
 		}
-	case 514:
+	case 518:
 		yyDollar = yyS[yypt-0 : yypt+1]
-//line sql.y:2636
+//line sql.y:2664
 		{
 			yyVAL.str = ""
 		}
-	case 515:
+	case 519:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2640
+//line sql.y:2668
 		{
 			yyVAL.str = BooleanModeStr
 		}
-	case 516:
+	case 520:
 		yyDollar = yyS[yypt-4 : yypt+1]
-//line sql.y:2644
+//line sql.y:2672
 		{
 			yyVAL.str = NaturalLanguageModeStr
 		}
-	case 517:
+	case 521:
 		yyDollar = yyS[yypt-7 : yypt+1]
-//line sql.y:2648
+//line sql.y:2676
 		{
 			yyVAL.str = NaturalLanguageModeWithQueryExpansionStr
 		}
-	case 518:
+	case 522:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2652
+//line sql.y:2680
 		{
 			yyVAL.str = QueryExpansionStr
 		}
-	case 519:
+	case 523:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2658
+//line sql.y:2686
 		{
 			yyVAL.str = string(yyDollar[1].bytes)
 		}
-	case 520:
+	case 524:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2662
+//line sql.y:2690
 		{
 			yyVAL.str = string(yyDollar[1].bytes)
 		}
-	case 521:
+	case 525:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2668
+//line sql.y:2696
 		{
 			yyVAL.convertType = &ConvertType{Type: string(yyDollar[1].bytes), Length: yyDollar[2].sqlVal}
 		}
-	case 522:
+	case 526:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2672
+//line sql.y:2700
 		{
 			yyVAL.convertType = &ConvertType{Type: string(yyDollar[1].bytes), Length: yyDollar[2].sqlVal, Charset: yyDollar[3].str, Operator: CharacterSetStr}
 		}
-	case 523:
+	case 527:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2676
+//line sql.y:2704
 		{
 			yyVAL.convertType = &ConvertType{Type: string(yyDollar[1].bytes), Length: yyDollar[2].sqlVal, Charset: string(yyDollar[3].bytes)}
 		}
-	case 524:
+	case 528:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2680
+//line sql.y:2708
 		{
 			yyVAL.convertType = &ConvertType{Type: string(yyDollar[1].bytes)}
 		}
-	case 525:
+	case 529:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2684
+//line sql.y:2712
 		{
 			yyVAL.convertType = &ConvertType{Type: string(yyDollar[1].bytes), Length: yyDollar[2].sqlVal}
 		}
-	case 526:
+	case 530:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2688
+//line sql.y:2716
 		{
 			yyVAL.convertType = &ConvertType{Type: string(yyDollar[1].bytes)}
 			yyVAL.convertType.Length = yyDollar[2].LengthScaleOption.Length
 			yyVAL.convertType.Scale = yyDollar[2].LengthScaleOption.Scale
 		}
-	case 527:
+	case 531:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2694
+//line sql.y:2722
 		{
 			yyVAL.convertType = &ConvertType{Type: string(yyDollar[1].bytes)}
 		}
-	case 528:
+	case 532:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2698
+//line sql.y:2726
 		{
 			yyVAL.convertType = &ConvertType{Type: string(yyDollar[1].bytes), Length: yyDollar[2].sqlVal}
 		}
-	case 529:
+	case 533:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2702
+//line sql.y:2730
 		{
 			yyVAL.convertType = &ConvertType{Type: string(yyDollar[1].bytes)}
 		}
-	case 530:
+	case 534:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2706
+//line sql.y:2734
 		{
 			yyVAL.convertType = &ConvertType{Type: string(yyDollar[1].bytes)}
 		}
-	case 531:
+	case 535:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2710
+//line sql.y:2738
 		{
 			yyVAL.convertType = &ConvertType{Type: string(yyDollar[1].bytes), Length: yyDollar[2].sqlVal}
 		}
-	case 532:
+	case 536:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2714
+//line sql.y:2742
 		{
 			yyVAL.convertType = &ConvertType{Type: string(yyDollar[1].bytes)}
 		}
-	case 533:
+	case 537:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2718
+//line sql.y:2746
 		{
 			yyVAL.convertType = &ConvertType{Type: string(yyDollar[1].bytes)}
 		}
-	case 534:
+	case 538:
 		yyDollar = yyS[yypt-0 : yypt+1]
-//line sql.y:2723
+//line sql.y:2751
 		{
 			yyVAL.expr = nil
 		}
-	case 535:
+	case 539:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2727
+//line sql.y:2755
 		{
 			yyVAL.expr = yyDollar[1].expr
 		}
-	case 536:
+	case 540:
 		yyDollar = yyS[yypt-0 : yypt+1]
-//line sql.y:2732
+//line sql.y:2760
 		{
 			yyVAL.str = string("")
 		}
-	case 537:
+	case 541:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2736
+//line sql.y:2764
 		{
 			yyVAL.str = " separator '" + string(yyDollar[2].bytes) + "'"
 		}
-	case 538:
+	case 542:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2742
+//line sql.y:2770
 		{
 			yyVAL.whens = []*When{yyDollar[1].when}
 		}
-	case 539:
+	case 543:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2746
+//line sql.y:2774
 		{
 			yyVAL.whens = append(yyDollar[1].whens, yyDollar[2].when)
 		}
-	case 540:
+	case 544:
 		yyDollar = yyS[yypt-4 : yypt+1]
-//line sql.y:2752
+//line sql.y:2780
 		{
 			yyVAL.when = &When{Cond: yyDollar[2].expr, Val: yyDollar[4].expr}
 		}
-	case 541:
+	case 545:
 		yyDollar = yyS[yypt-0 : yypt+1]
-//line sql.y:2757
+//line sql.y:2785
 		{
 			yyVAL.expr = nil
 		}
-	case 542:
+	case 546:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2761
+//line sql.y:2789
 		{
 			yyVAL.expr = yyDollar[2].expr
 		}
-	case 543:
+	case 547:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2767
+//line sql.y:2795
 		{
 			yyVAL.colName = &ColName{Name: yyDollar[1].colIdent}
 		}
-	case 544:
+	case 548:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2771
+//line sql.y:2799
 		{
 			yyVAL.colName = &ColName{Qualifier: TableName{Name: yyDollar[1].tableIdent}, Name: yyDollar[3].colIdent}
 		}
-	case 545:
+	case 549:
 		yyDollar = yyS[yypt-5 : yypt+1]
-//line sql.y:2775
+//line sql.y:2803
 		{
 			yyVAL.colName = &ColName{Qualifier: TableName{Qualifier: yyDollar[1].tableIdent, Name: yyDollar[3].tableIdent}, Name: yyDollar[5].colIdent}
 		}
-	case 546:
+	case 550:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2781
+//line sql.y:2809
 		{
 			yyVAL.expr = NewStrVal(yyDollar[1].bytes)
 		}
-	case 547:
+	case 551:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2785
+//line sql.y:2813
 		{
 			yyVAL.expr = NewHexVal(yyDollar[1].bytes)
 		}
-	case 548:
+	case 552:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2789
+//line sql.y:2817
 		{
 			yyVAL.expr = NewBitVal(yyDollar[1].bytes)
 		}
-	case 549:
+	case 553:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2793
+//line sql.y:2821
 		{
 			yyVAL.expr = NewIntVal(yyDollar[1].bytes)
 		}
-	case 550:
+	case 554:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2797
+//line sql.y:2825
 		{
 			yyVAL.expr = NewFloatVal(yyDollar[1].bytes)
 		}
-	case 551:
+	case 555:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2801
+//line sql.y:2829
 		{
 			yyVAL.expr = NewHexNum(yyDollar[1].bytes)
 		}
-	case 552:
+	case 556:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2805
+//line sql.y:2833
 		{
 			yyVAL.expr = NewValArg(yyDollar[1].bytes)
 		}
-	case 553:
+	case 557:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2809
+//line sql.y:2837
 		{
 			yyVAL.expr = &NullVal{}
 		}
-	case 554:
+	case 558:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2815
+//line sql.y:2843
 		{
 			// TODO(sougou): Deprecate this construct.
 			if yyDollar[1].colIdent.Lowered() != "value" {
@@ -6251,239 +6276,239 @@ yydefault:
 			}
 			yyVAL.expr = NewIntVal([]byte("1"))
 		}
-	case 555:
+	case 559:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2824
+//line sql.y:2852
 		{
 			yyVAL.expr = NewIntVal(yyDollar[1].bytes)
 		}
-	case 556:
+	case 560:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2828
+//line sql.y:2856
 		{
 			yyVAL.expr = NewValArg(yyDollar[1].bytes)
 		}
-	case 557:
+	case 561:
 		yyDollar = yyS[yypt-0 : yypt+1]
-//line sql.y:2833
+//line sql.y:2861
 		{
 			yyVAL.exprs = nil
 		}
-	case 558:
+	case 562:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2837
+//line sql.y:2865
 		{
 			yyVAL.exprs = yyDollar[3].exprs
 		}
-	case 559:
+	case 563:
 		yyDollar = yyS[yypt-0 : yypt+1]
-//line sql.y:2842
+//line sql.y:2870
 		{
 			yyVAL.expr = nil
 		}
-	case 560:
+	case 564:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2846
+//line sql.y:2874
 		{
 			yyVAL.expr = yyDollar[2].expr
 		}
-	case 561:
+	case 565:
 		yyDollar = yyS[yypt-0 : yypt+1]
-//line sql.y:2851
+//line sql.y:2879
 		{
 			yyVAL.orderBy = nil
 		}
-	case 562:
+	case 566:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2855
+//line sql.y:2883
 		{
 			yyVAL.orderBy = yyDollar[3].orderBy
 		}
-	case 563:
+	case 567:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2861
+//line sql.y:2889
 		{
 			yyVAL.orderBy = OrderBy{yyDollar[1].order}
 		}
-	case 564:
+	case 568:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2865
+//line sql.y:2893
 		{
 			yyVAL.orderBy = append(yyDollar[1].orderBy, yyDollar[3].order)
 		}
-	case 565:
+	case 569:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2871
+//line sql.y:2899
 		{
 			yyVAL.order = &Order{Expr: yyDollar[1].expr, Direction: yyDollar[2].str}
 		}
-	case 566:
+	case 570:
 		yyDollar = yyS[yypt-0 : yypt+1]
-//line sql.y:2876
+//line sql.y:2904
 		{
 			yyVAL.str = AscScr
 		}
-	case 567:
+	case 571:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2880
+//line sql.y:2908
 		{
 			yyVAL.str = AscScr
 		}
-	case 568:
+	case 572:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2884
+//line sql.y:2912
 		{
 			yyVAL.str = DescScr
 		}
-	case 569:
+	case 573:
 		yyDollar = yyS[yypt-0 : yypt+1]
-//line sql.y:2889
+//line sql.y:2917
 		{
 			yyVAL.limit = nil
 		}
-	case 570:
+	case 574:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2893
+//line sql.y:2921
 		{
 			yyVAL.limit = &Limit{Rowcount: yyDollar[2].expr}
 		}
-	case 571:
+	case 575:
 		yyDollar = yyS[yypt-4 : yypt+1]
-//line sql.y:2897
+//line sql.y:2925
 		{
 			yyVAL.limit = &Limit{Offset: yyDollar[2].expr, Rowcount: yyDollar[4].expr}
 		}
-	case 572:
+	case 576:
 		yyDollar = yyS[yypt-4 : yypt+1]
-//line sql.y:2901
+//line sql.y:2929
 		{
 			yyVAL.limit = &Limit{Offset: yyDollar[4].expr, Rowcount: yyDollar[2].expr}
 		}
-	case 573:
+	case 577:
 		yyDollar = yyS[yypt-0 : yypt+1]
-//line sql.y:2906
+//line sql.y:2934
 		{
 			yyVAL.str = ""
 		}
-	case 574:
+	case 578:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2910
+//line sql.y:2938
 		{
 			yyVAL.str = ForUpdateStr
 		}
-	case 575:
+	case 579:
 		yyDollar = yyS[yypt-4 : yypt+1]
-//line sql.y:2914
+//line sql.y:2942
 		{
 			yyVAL.str = ShareModeStr
 		}
-	case 576:
+	case 580:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2927
+//line sql.y:2955
 		{
 			yyVAL.ins = &Insert{Rows: yyDollar[2].values}
 		}
-	case 577:
+	case 581:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2931
+//line sql.y:2959
 		{
 			yyVAL.ins = &Insert{Rows: yyDollar[1].selStmt}
 		}
-	case 578:
+	case 582:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2935
+//line sql.y:2963
 		{
 			// Drop the redundant parenthesis.
 			yyVAL.ins = &Insert{Rows: yyDollar[2].selStmt}
 		}
-	case 579:
+	case 583:
 		yyDollar = yyS[yypt-5 : yypt+1]
-//line sql.y:2940
+//line sql.y:2968
 		{
 			yyVAL.ins = &Insert{Columns: yyDollar[2].columns, Rows: yyDollar[5].values}
 		}
-	case 580:
+	case 584:
 		yyDollar = yyS[yypt-4 : yypt+1]
-//line sql.y:2944
+//line sql.y:2972
 		{
 			yyVAL.ins = &Insert{Columns: yyDollar[2].columns, Rows: yyDollar[4].selStmt}
 		}
-	case 581:
+	case 585:
 		yyDollar = yyS[yypt-6 : yypt+1]
-//line sql.y:2948
+//line sql.y:2976
 		{
 			// Drop the redundant parenthesis.
 			yyVAL.ins = &Insert{Columns: yyDollar[2].columns, Rows: yyDollar[5].selStmt}
 		}
-	case 582:
+	case 586:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2955
+//line sql.y:2983
 		{
 			yyVAL.columns = Columns{yyDollar[1].colIdent}
 		}
-	case 583:
+	case 587:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2959
+//line sql.y:2987
 		{
 			yyVAL.columns = Columns{yyDollar[3].colIdent}
 		}
-	case 584:
+	case 588:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2963
+//line sql.y:2991
 		{
 			yyVAL.columns = append(yyVAL.columns, yyDollar[3].colIdent)
 		}
-	case 585:
+	case 589:
 		yyDollar = yyS[yypt-5 : yypt+1]
-//line sql.y:2967
+//line sql.y:2995
 		{
 			yyVAL.columns = append(yyVAL.columns, yyDollar[5].colIdent)
 		}
-	case 586:
+	case 590:
 		yyDollar = yyS[yypt-0 : yypt+1]
-//line sql.y:2972
+//line sql.y:3000
 		{
 			yyVAL.updateExprs = nil
 		}
-	case 587:
+	case 591:
 		yyDollar = yyS[yypt-5 : yypt+1]
-//line sql.y:2976
+//line sql.y:3004
 		{
 			yyVAL.updateExprs = yyDollar[5].updateExprs
 		}
-	case 588:
+	case 592:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2982
+//line sql.y:3010
 		{
 			yyVAL.values = Values{yyDollar[1].valTuple}
 		}
-	case 589:
+	case 593:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:2986
+//line sql.y:3014
 		{
 			yyVAL.values = append(yyDollar[1].values, yyDollar[3].valTuple)
 		}
-	case 590:
+	case 594:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:2992
+//line sql.y:3020
 		{
 			yyVAL.valTuple = yyDollar[1].valTuple
 		}
-	case 591:
+	case 595:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:2996
+//line sql.y:3024
 		{
 			yyVAL.valTuple = ValTuple{}
 		}
-	case 592:
+	case 596:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:3002
+//line sql.y:3030
 		{
 			yyVAL.valTuple = ValTuple(yyDollar[2].exprs)
 		}
-	case 593:
+	case 597:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:3008
+//line sql.y:3036
 		{
 			if len(yyDollar[1].valTuple) == 1 {
 				yyVAL.expr = &ParenExpr{yyDollar[1].valTuple[0]}
@@ -6491,312 +6516,312 @@ yydefault:
 				yyVAL.expr = yyDollar[1].valTuple
 			}
 		}
-	case 594:
+	case 598:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:3018
+//line sql.y:3046
 		{
 			yyVAL.updateExprs = UpdateExprs{yyDollar[1].updateExpr}
 		}
-	case 595:
+	case 599:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:3022
+//line sql.y:3050
 		{
 			yyVAL.updateExprs = append(yyDollar[1].updateExprs, yyDollar[3].updateExpr)
 		}
-	case 596:
+	case 600:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:3028
+//line sql.y:3056
 		{
 			yyVAL.updateExpr = &UpdateExpr{Name: yyDollar[1].colName, Expr: yyDollar[3].expr}
 		}
-	case 597:
+	case 601:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:3034
+//line sql.y:3062
 		{
 			yyVAL.setExprs = SetExprs{yyDollar[1].setExpr}
 		}
-	case 598:
+	case 602:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:3038
+//line sql.y:3066
 		{
 			yyVAL.setExprs = append(yyDollar[1].setExprs, yyDollar[3].setExpr)
 		}
-	case 599:
+	case 603:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:3044
+//line sql.y:3072
 		{
 			yyVAL.setExpr = &SetExpr{Name: yyDollar[1].colIdent, Expr: NewStrVal([]byte("on"))}
 		}
-	case 600:
+	case 604:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:3048
+//line sql.y:3076
 		{
 			yyVAL.setExpr = &SetExpr{Name: yyDollar[1].colIdent, Expr: NewStrVal([]byte("off"))}
 		}
-	case 601:
+	case 605:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:3052
+//line sql.y:3080
 		{
 			yyVAL.setExpr = &SetExpr{Name: yyDollar[1].colIdent, Expr: yyDollar[3].expr}
 		}
-	case 602:
+	case 606:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:3056
+//line sql.y:3084
 		{
 			yyVAL.setExpr = &SetExpr{Name: NewColIdent(string(yyDollar[1].bytes)), Expr: yyDollar[2].expr}
 		}
-	case 604:
+	case 608:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:3063
+//line sql.y:3091
 		{
 			yyVAL.bytes = []byte("charset")
 		}
-	case 606:
+	case 610:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:3070
+//line sql.y:3098
 		{
 			yyVAL.expr = NewStrVal([]byte(yyDollar[1].colIdent.String()))
 		}
-	case 607:
+	case 611:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:3074
+//line sql.y:3102
 		{
 			yyVAL.expr = NewStrVal(yyDollar[1].bytes)
 		}
-	case 608:
+	case 612:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:3078
+//line sql.y:3106
 		{
 			yyVAL.expr = &Default{}
 		}
-	case 611:
+	case 615:
 		yyDollar = yyS[yypt-0 : yypt+1]
-//line sql.y:3087
+//line sql.y:3115
 		{
 			yyVAL.byt = 0
 		}
-	case 612:
+	case 616:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:3089
+//line sql.y:3117
 		{
 			yyVAL.byt = 1
 		}
-	case 613:
+	case 617:
 		yyDollar = yyS[yypt-0 : yypt+1]
-//line sql.y:3092
+//line sql.y:3120
 		{
 			yyVAL.empty = struct{}{}
 		}
-	case 614:
+	case 618:
 		yyDollar = yyS[yypt-3 : yypt+1]
-//line sql.y:3094
+//line sql.y:3122
 		{
 			yyVAL.empty = struct{}{}
 		}
-	case 615:
+	case 619:
 		yyDollar = yyS[yypt-0 : yypt+1]
-//line sql.y:3097
+//line sql.y:3125
 		{
 			yyVAL.str = ""
 		}
-	case 616:
+	case 620:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:3099
+//line sql.y:3127
 		{
 			yyVAL.str = IgnoreStr
 		}
-	case 617:
+	case 621:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:3103
+//line sql.y:3131
 		{
 			yyVAL.empty = struct{}{}
 		}
-	case 618:
+	case 622:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:3105
+//line sql.y:3133
 		{
 			yyVAL.empty = struct{}{}
 		}
-	case 619:
+	case 623:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:3107
+//line sql.y:3135
 		{
 			yyVAL.empty = struct{}{}
 		}
-	case 620:
+	case 624:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:3109
+//line sql.y:3137
 		{
 			yyVAL.empty = struct{}{}
 		}
-	case 621:
+	case 625:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:3111
+//line sql.y:3139
 		{
 			yyVAL.empty = struct{}{}
 		}
-	case 622:
+	case 626:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:3113
+//line sql.y:3141
 		{
 			yyVAL.empty = struct{}{}
 		}
-	case 623:
+	case 627:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:3115
+//line sql.y:3143
 		{
 			yyVAL.empty = struct{}{}
 		}
-	case 624:
+	case 628:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:3117
+//line sql.y:3145
 		{
 			yyVAL.empty = struct{}{}
 		}
-	case 625:
+	case 629:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:3119
+//line sql.y:3147
 		{
 			yyVAL.empty = struct{}{}
 		}
-	case 626:
+	case 630:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:3121
+//line sql.y:3149
 		{
 			yyVAL.empty = struct{}{}
 		}
-	case 627:
+	case 631:
 		yyDollar = yyS[yypt-0 : yypt+1]
-//line sql.y:3124
+//line sql.y:3152
 		{
 			yyVAL.empty = struct{}{}
 		}
-	case 628:
+	case 632:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:3126
+//line sql.y:3154
 		{
 			yyVAL.empty = struct{}{}
 		}
-	case 629:
+	case 633:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:3128
+//line sql.y:3156
 		{
 			yyVAL.empty = struct{}{}
 		}
-	case 630:
+	case 634:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:3132
+//line sql.y:3160
 		{
 			yyVAL.empty = struct{}{}
 		}
-	case 631:
+	case 635:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:3134
+//line sql.y:3162
 		{
 			yyVAL.empty = struct{}{}
 		}
-	case 632:
+	case 636:
 		yyDollar = yyS[yypt-0 : yypt+1]
-//line sql.y:3137
+//line sql.y:3165
 		{
 			yyVAL.empty = struct{}{}
 		}
-	case 633:
+	case 637:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:3139
+//line sql.y:3167
 		{
 			yyVAL.empty = struct{}{}
 		}
-	case 634:
+	case 638:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:3141
+//line sql.y:3169
 		{
 			yyVAL.empty = struct{}{}
 		}
-	case 635:
+	case 639:
 		yyDollar = yyS[yypt-0 : yypt+1]
-//line sql.y:3144
+//line sql.y:3172
 		{
 			yyVAL.colIdent = ColIdent{}
 		}
-	case 636:
+	case 640:
 		yyDollar = yyS[yypt-2 : yypt+1]
-//line sql.y:3146
+//line sql.y:3174
 		{
 			yyVAL.colIdent = yyDollar[2].colIdent
 		}
-	case 637:
+	case 641:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:3150
+//line sql.y:3178
 		{
 			yyVAL.colIdent = NewColIdent(string(yyDollar[1].bytes))
 		}
-	case 638:
+	case 642:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:3154
+//line sql.y:3182
 		{
 			yyVAL.colIdent = NewColIdent(string(yyDollar[1].bytes))
 		}
-	case 640:
+	case 644:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:3161
+//line sql.y:3189
 		{
 			yyVAL.colIdent = NewColIdent(string(yyDollar[1].bytes))
 		}
-	case 641:
+	case 645:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:3167
+//line sql.y:3195
 		{
 			yyVAL.tableIdent = NewTableIdent(string(yyDollar[1].bytes))
 		}
-	case 642:
+	case 646:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:3171
+//line sql.y:3199
 		{
 			yyVAL.tableIdent = NewTableIdent(string(yyDollar[1].bytes))
 		}
-	case 644:
+	case 648:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:3178
+//line sql.y:3206
 		{
 			yyVAL.tableIdent = NewTableIdent(string(yyDollar[1].bytes))
 		}
-	case 855:
+	case 859:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:3414
+//line sql.y:3442
 		{
 			if incNesting(yylex) {
 				yylex.Error("max nesting level reached")
 				return 1
 			}
 		}
-	case 856:
+	case 860:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:3423
+//line sql.y:3451
 		{
 			decNesting(yylex)
 		}
-	case 857:
+	case 861:
 		yyDollar = yyS[yypt-0 : yypt+1]
-//line sql.y:3428
+//line sql.y:3456
 		{
 			skipToEnd(yylex)
 		}
-	case 858:
+	case 862:
 		yyDollar = yyS[yypt-0 : yypt+1]
-//line sql.y:3433
+//line sql.y:3461
 		{
 			skipToEnd(yylex)
 		}
-	case 859:
+	case 863:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:3437
+//line sql.y:3465
 		{
 			skipToEnd(yylex)
 		}
-	case 860:
+	case 864:
 		yyDollar = yyS[yypt-1 : yypt+1]
-//line sql.y:3441
+//line sql.y:3469
 		{
 			skipToEnd(yylex)
 		}
diff --git a/go/vt/sqlparser/sql.y b/go/vt/sqlparser/sql.y
index a14d032ae0f..8f22e3b4efb 100644
--- a/go/vt/sqlparser/sql.y
+++ b/go/vt/sqlparser/sql.y
@@ -1338,6 +1338,30 @@ alter_statement:
         },
       }
   }
+| ALTER VSCHEMA ON table_name ADD COLUMN column_definition
+  {
+    $$ = &DDL{
+        Action: AddVschemaColStr,
+        Table: $4,
+        VschemaCol: $7,
+      }
+  }
+| ALTER VSCHEMA ON table_name DROP COLUMN sql_id
+  {
+    $$ = &DDL{
+        Action: DropVschemaColStr,
+        Table: $4,
+        VschemaCol: &ColumnDefinition{Name:$7},
+      }
+  }
+| ALTER VSCHEMA ON table_name SET update_list
+  {
+    $$ = &DDL{
+        Action: SetVschemaUpdatesStr,
+        Table: $4,
+        VschemaUpdates: $6,
+      }
+  }
 
 alter_object_type:
   COLUMN
@@ -1574,6 +1598,10 @@ show_statement:
   {
     $$ = &Show{Type: string($2) + " " + string($3), OnTable: $5}
   }
+| SHOW VSCHEMA COLUMNS ON table_name
+  {
+    $$ = &Show{Type: string($2) + " " + string($3), OnTable: $5}
+  }
 | SHOW WARNINGS
   {
     $$ = &Show{Type: string($2)}
diff --git a/go/vt/topotools/vschema_ddl.go b/go/vt/topotools/vschema_ddl.go
index f6ccdbc99bc..0412a7b8dab 100644
--- a/go/vt/topotools/vschema_ddl.go
+++ b/go/vt/topotools/vschema_ddl.go
@@ -180,6 +180,60 @@ func ApplyVSchemaDDL(ksName string, ks *vschemapb.Keyspace, ddl *sqlparser.DDL)
 			}
 		}
 		return nil, vterrors.Errorf(vtrpcpb.Code_INTERNAL, "vindex %s not defined in table %s.%s", name, ksName, tableName)
+
+	case sqlparser.AddVschemaColStr:
+		if table == nil {
+			return nil, vterrors.Errorf(vtrpcpb.Code_INTERNAL, "table %s.%s not defined in vschema", ksName, tableName)
+		}
+		for _, column := range table.Columns {
+			if ddl.VschemaCol.Name.EqualString(column.Name) {
+				return nil, vterrors.Errorf(vtrpcpb.Code_INTERNAL, "table %s.%s has column:%s already defined in vschema", ksName, tableName, column.Name)
+			}
+		}
+		table.Columns = append(table.Columns, &vschemapb.Column{Name: ddl.VschemaCol.Name.Lowered(), Type: ddl.VschemaCol.Type.SQLType()})
+		ks.Tables[tableName] = table
+		return ks, nil
+
+	case sqlparser.DropVschemaColStr:
+		if table == nil {
+			return nil, vterrors.Errorf(vtrpcpb.Code_INTERNAL, "table %s.%s not defined in vschema", ksName, tableName)
+		}
+		found := false
+		purged := make([]*vschemapb.Column, 0, len(table.Columns))
+		for _, col := range table.Columns {
+			if !ddl.VschemaCol.Name.EqualString(col.Name) {
+				purged = append(purged, col)
+			} else {
+				found = true
+			}
+		}
+		if !found {
+			return nil, vterrors.Errorf(vtrpcpb.Code_INTERNAL, "table %s.%s has no column:%s in vschema", ksName, tableName, ddl.VschemaCol.Name.Lowered())
+		}
+		table.Columns = purged
+		ks.Tables[tableName] = table
+		return ks, nil
+
+	case sqlparser.SetVschemaUpdatesStr:
+		name := ddl.Table.Name.String()
+		if _, ok := ks.Tables[name]; !ok {
+			return nil, vterrors.Errorf(vtrpcpb.Code_INTERNAL, "vschema does not contain table %s in keyspace %s", name, ksName)
+		}
+		for _, update := range ddl.VschemaUpdates {
+			// for now the only setting we accept is `column_list_authoritative`
+			if update.Name.Name.EqualString("column_list_authoritative") {
+				switch expr := update.Expr.(type) {
+				case sqlparser.BoolVal:
+					ks.Tables[name].ColumnListAuthoritative = bool(expr)
+					// jump to the next update
+					continue
+				default:
+					return nil, vterrors.Errorf(vtrpcpb.Code_INTERNAL, "vschema update table %s in keyspace %s column_list_authoritative setting must be bool type, instead got: %v", name, ksName, expr)
+				}
+			}
+			return nil, vterrors.Errorf(vtrpcpb.Code_INTERNAL, "vschema update table %s in keyspace %s has unknown setting %s", name, ksName, update.Name.Name)
+		}
+		return ks, nil
 	}
 
 	return nil, vterrors.Errorf(vtrpcpb.Code_INTERNAL, "unexpected vindex ddl operation %s", ddl.Action)
diff --git a/go/vt/vtgate/executor.go b/go/vt/vtgate/executor.go
index 6e7f5428a88..50e21755b4c 100644
--- a/go/vt/vtgate/executor.go
+++ b/go/vt/vtgate/executor.go
@@ -341,7 +341,10 @@ func (e *Executor) handleDDL(ctx context.Context, safeSession *SafeSession, sql
 			sqlparser.AddVschemaTableStr,
 			sqlparser.DropVschemaTableStr,
 			sqlparser.AddColVindexStr,
-			sqlparser.DropColVindexStr:
+			sqlparser.DropColVindexStr,
+			sqlparser.AddVschemaColStr,
+			sqlparser.DropVschemaColStr,
+			sqlparser.SetVschemaUpdatesStr:
 
 			err := e.handleVSchemaDDL(ctx, safeSession, dest, destKeyspace, destTabletType, ddl, logStats)
 			logStats.ExecuteTime = time.Since(execStart)
@@ -959,6 +962,46 @@ func (e *Executor) handleShow(ctx context.Context, safeSession *SafeSession, sql
 			Rows:         rows,
 			RowsAffected: uint64(len(rows)),
 		}, nil
+	case "vschema columns":
+		if !show.HasOnTable() {
+			return nil, vterrors.Errorf(vtrpcpb.Code_INTERNAL, "show vschema column must provide table")
+		}
+
+		vschema := e.vm.GetCurrentSrvVschema()
+		if vschema == nil {
+			return nil, vterrors.Errorf(vtrpcpb.Code_INTERNAL, "vschema not loaded")
+		}
+
+		rows := make([][]sqltypes.Value, 0, 16)
+		// If the table reference is not fully qualified, then
+		// pull the keyspace from the session. Fail if the keyspace
+		// isn't specified or isn't valid, or if the table isn't
+		// known.
+		ksName := show.OnTable.Qualifier.String()
+		if ksName == "" {
+			ksName = destKeyspace
+		}
+
+		ks, ok := vschema.Keyspaces[ksName]
+		if !ok {
+			return nil, errNoKeyspace
+		}
+
+		tableName := show.OnTable.Name.String()
+		table, ok := ks.Tables[tableName]
+		if !ok {
+			return nil, vterrors.Errorf(vtrpcpb.Code_INTERNAL, "table `%s` does not exist in keyspace `%s`", tableName, ksName)
+		}
+
+		for _, col := range table.Columns {
+			rows = append(rows, buildVarCharRow(col.Name, col.Type.String()))
+		}
+
+		return &sqltypes.Result{
+			Fields:       buildVarCharFields("Name", "Type"),
+			Rows:         rows,
+			RowsAffected: uint64(len(rows)),
+		}, nil
 	case sqlparser.KeywordString(sqlparser.WARNINGS):
 		fields := []*querypb.Field{
 			{Name: "Level", Type: sqltypes.VarChar},
diff --git a/go/vt/vtgate/executor_test.go b/go/vt/vtgate/executor_test.go
index afa03b54e70..4fd8ca0a563 100644
--- a/go/vt/vtgate/executor_test.go
+++ b/go/vt/vtgate/executor_test.go
@@ -1305,6 +1305,51 @@ func waitForColVindexes(t *testing.T, ks, table string, names []string, executor
 	return nil
 }
 
+func waitForVschemaCol(t *testing.T, ks, table string, name string, drop bool, executor *Executor) (*vschemapb.SrvVSchema, *vschemapb.Column) {
+	t.Helper()
+
+	// Wait up to 10ms until the vindex manager gets notified of the update
+	for i := 0; i < 10; i++ {
+		vschema := executor.vm.GetCurrentSrvVschema()
+		if table, ok := vschema.Keyspaces[ks].Tables[table]; ok {
+			found := false
+			for _, col := range table.Columns {
+				if name == col.Name {
+					found = true
+					if !drop {
+						return vschema, col
+					}
+				}
+			}
+			if drop && !found {
+				return vschema, nil
+			}
+		}
+		time.Sleep(time.Millisecond)
+	}
+
+	t.Fatalf("updated vschema did not contain column %v on table %s", name, table)
+	return nil, nil
+}
+
+func waitForVschemaUpdates(t *testing.T, ks, table string, authoritative bool, executor *Executor) (*vschemapb.SrvVSchema, *vschemapb.Table) {
+	t.Helper()
+
+	// Wait up to 10ms until the vindex manager gets notified of the update
+	for i := 0; i < 10; i++ {
+		vschema := executor.vm.GetCurrentSrvVschema()
+		if table, ok := vschema.Keyspaces[ks].Tables[table]; ok {
+			if table.ColumnListAuthoritative == authoritative {
+				return vschema, table
+			}
+		}
+		time.Sleep(time.Millisecond)
+	}
+
+	t.Fatalf("updated vschema did not contain table %s", table)
+	return nil, nil
+}
+
 func TestExecutorCreateVindexDDL(t *testing.T) {
 	*vschemaacl.AuthorizedDDLUsers = "%"
 	defer func() {
@@ -1769,6 +1814,158 @@ func TestExecutorAddDropVindexDDL(t *testing.T) {
 	}
 }
 
+func TestExecutorAddDropVschemaColDDL(t *testing.T) {
+	*vschemaacl.AuthorizedDDLUsers = "%"
+	defer func() {
+		*vschemaacl.AuthorizedDDLUsers = ""
+	}()
+	executor, _, _, _ := createExecutorEnv()
+	ks := KsTestUnsharded
+	session := NewSafeSession(&vtgatepb.Session{TargetString: ks})
+	vschemaUpdates := make(chan *vschemapb.SrvVSchema, 4)
+	executor.serv.WatchSrvVSchema(context.Background(), "aa", func(vschema *vschemapb.SrvVSchema, err error) {
+		vschemaUpdates <- vschema
+	})
+
+	vschema := <-vschemaUpdates
+	_, ok := vschema.Keyspaces[ks].Tables["test_table"]
+	if ok {
+		t.Fatalf("test_table should not exist in original vschema")
+	}
+
+	vschemaTables := []string{}
+	for t := range vschema.Keyspaces[ks].Tables {
+		vschemaTables = append(vschemaTables, t)
+	}
+
+	stmt := "alter vschema add table test_table"
+	_, err := executor.Execute(context.Background(), "TestExecute", session, stmt, nil)
+	if err != nil {
+		t.Error(err)
+	}
+	vschema = waitForVschemaTables(t, ks, append(vschemaTables, "test_table"), executor)
+
+	if len(vschema.Keyspaces[ks].Tables["test_table"].Columns) > 0 {
+		t.Fatalf("vschema columns should not exist in original vschema")
+	}
+
+	// Create a new vschema column with the statement
+	stmt = "alter vschema on test_table add column id bigint"
+	_, err = executor.Execute(context.Background(), "TestExecute", session, stmt, nil)
+	if err != nil {
+		t.Fatalf("error in %s: %v", stmt, err)
+	}
+	vschema, vcol := waitForVschemaCol(t, ks, "test_table", "id", false, executor)
+	if vcol == nil {
+		t.Fatalf("vschema column id should have been added")
+	}
+
+	qr, err := executor.Execute(context.Background(), "TestExecute", session, "show vschema columns on "+ks+".test_table", nil)
+	if err != nil {
+		t.Fatalf("error in show vschema columns on %s.test_table: %v", ks, err)
+	}
+	wantqr := &sqltypes.Result{
+		Fields: buildVarCharFields("Name", "Type"),
+		Rows: [][]sqltypes.Value{
+			buildVarCharRow("id", "INT64"),
+		},
+		RowsAffected: 1,
+	}
+	if !reflect.DeepEqual(qr, wantqr) {
+		t.Errorf("show vschema columns on %s.test_table:\n%+v, want\n%+v", ks, qr, wantqr)
+	}
+
+	// drop a vschema column with the statement
+	stmt = "alter vschema on test_table drop column id"
+	_, err = executor.Execute(context.Background(), "TestExecute", session, stmt, nil)
+	if err != nil {
+		t.Fatalf("error in %s: %v", stmt, err)
+	}
+	vschema, vcol = waitForVschemaCol(t, ks, "test_table", "id", true, executor)
+	if vcol != nil {
+		t.Fatalf("vschema column id should have been dropped")
+	}
+
+	qr, err = executor.Execute(context.Background(), "TestExecute", session, "show vschema columns on "+ks+".test_table", nil)
+	if err != nil {
+		t.Fatalf("error in show vschema columns on %s.test_table: %v", ks, err)
+	}
+	wantqr = &sqltypes.Result{
+		Fields:       buildVarCharFields("Name", "Type"),
+		Rows:         [][]sqltypes.Value{},
+		RowsAffected: 0,
+	}
+	if !reflect.DeepEqual(qr, wantqr) {
+		t.Errorf("show vschema columns on %s.test_table:\n%+v, want\n%+v", ks, qr, wantqr)
+	}
+}
+
+func TestExecutorSetVschemaUpdatesDDL(t *testing.T) {
+	*vschemaacl.AuthorizedDDLUsers = "%"
+	defer func() {
+		*vschemaacl.AuthorizedDDLUsers = ""
+	}()
+	executor, _, _, _ := createExecutorEnv()
+	ks := KsTestUnsharded
+	session := NewSafeSession(&vtgatepb.Session{TargetString: ks})
+	vschemaUpdates := make(chan *vschemapb.SrvVSchema, 4)
+	executor.serv.WatchSrvVSchema(context.Background(), "aa", func(vschema *vschemapb.SrvVSchema, err error) {
+		vschemaUpdates <- vschema
+	})
+
+	vschema := <-vschemaUpdates
+	_, ok := vschema.Keyspaces[ks].Tables["test_table"]
+	if ok {
+		t.Fatalf("test_table should not exist in original vschema")
+	}
+
+	vschemaTables := []string{}
+	for t := range vschema.Keyspaces[ks].Tables {
+		vschemaTables = append(vschemaTables, t)
+	}
+
+	stmt := "alter vschema add table test_table"
+	_, err := executor.Execute(context.Background(), "TestExecute", session, stmt, nil)
+	if err != nil {
+		t.Error(err)
+	}
+	vschema = waitForVschemaTables(t, ks, append(vschemaTables, "test_table"), executor)
+
+	if vschema.Keyspaces[ks].Tables["test_table"].ColumnListAuthoritative {
+		t.Fatalf("test_table should not be authoritative yet")
+	}
+	stmt = "alter vschema on test_table set column_list_authoritative=true"
+	_, err = executor.Execute(context.Background(), "TestExecute", session, stmt, nil)
+	if err != nil {
+		t.Error(err)
+	}
+	vschema, _ = waitForVschemaUpdates(t, ks, "test_table", true, executor)
+	if !vschema.Keyspaces[ks].Tables["test_table"].ColumnListAuthoritative {
+		t.Fatalf("test_table should be authoritative now")
+	}
+	stmt = "alter vschema on test_table set column_list_authoritative=false"
+	_, err = executor.Execute(context.Background(), "TestExecute", session, stmt, nil)
+	if err != nil {
+		t.Error(err)
+	}
+	vschema, _ = waitForVschemaUpdates(t, ks, "test_table", false, executor)
+	if vschema.Keyspaces[ks].Tables["test_table"].ColumnListAuthoritative {
+		t.Fatalf("test_table should not be authoritative now")
+	}
+
+	stmt = "alter vschema on test_table set column_list_authoritative=invalid"
+	_, err = executor.Execute(context.Background(), "TestExecute", session, stmt, nil)
+	if err == nil || !strings.Contains(err.Error(), "must be bool type") {
+		t.Fatalf("column_list_authoritative type should be bool")
+	}
+
+	stmt = "alter vschema on test_table set unknown_attribute=false"
+	_, err = executor.Execute(context.Background(), "TestExecute", session, stmt, nil)
+	if err == nil || !strings.Contains(err.Error(), "unknown setting") {
+		t.Fatalf("column_list_authoritative is the only known attribute for now")
+	}
+}
+
 func TestExecutorVindexDDLNewKeyspace(t *testing.T) {
 	*vschemaacl.AuthorizedDDLUsers = "%"
 	defer func() {