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show statements grammar rework #3497

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Merged
sougou merged 2 commits into from
Dec 22, 2017
Merged

show statements grammar rework #3497

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714fcce
rework the grammar for show statements
demmer Dec 22, 2017
bef7216
rework the vtgate show statement handling
demmer Dec 22, 2017
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10 changes: 0 additions & 10 deletions go/vt/sqlparser/ast.go
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Original file line number Diff line number Diff line change
Expand Up @@ -1054,16 +1054,6 @@ type Show struct {
Type string
}

// The frollowing constants represent SHOW statements.
const (
ShowDatabasesStr = "databases"
ShowKeyspacesStr = "vitess_keyspaces"
ShowShardsStr = "vitess_shards"
ShowTablesStr = "tables"
ShowVSchemaTablesStr = "vschema_tables"
ShowUnsupportedStr = "unsupported"
)

// Format formats the node.
func (node *Show) Format(buf *TrackedBuffer) {
buf.Myprintf("show %s", node.Type)
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147 changes: 144 additions & 3 deletions go/vt/sqlparser/parse_test.go
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Expand Up @@ -805,12 +805,150 @@ var (
}, {
input: "analyze table a",
output: "alter table a",
}, {
input: "show binary logs",
output: "show binary logs",
}, {
input: "show binlog events",
output: "show binlog",
}, {
input: "show character set",
output: "show character set",
}, {
input: "show character set like '%foo'",
output: "show character set",
}, {
input: "show collation",
output: "show collation",
}, {
input: "show create database d",
output: "show create database",
}, {
input: "show create event e",
output: "show create event",
}, {
input: "show create function f",
output: "show create function",
}, {
input: "show create procedure p",
output: "show create procedure",
}, {
input: "show create table t",
output: "show create table",
}, {
input: "show create trigger t",
output: "show create trigger",
}, {
input: "show create user u",
output: "show create user",
}, {
input: "show create view v",
output: "show create view",
}, {
input: "show databases",
output: "show databases",
}, {
input: "show engine INNODB",
output: "show engine",
}, {
input: "show engines",
output: "show engines",
}, {
input: "show storage engines",
output: "show storage",
}, {
input: "show errors",
output: "show errors",
}, {
input: "show events",
output: "show events",
}, {
input: "show function code func",
output: "show function",
}, {
input: "show function status",
output: "show function",
}, {
input: "show grants for 'root@localhost'",
output: "show grants",
}, {
input: "show index from table",
output: "show index",
}, {
input: "show indexes from table",
output: "show indexes",
}, {
input: "show keys from table",
output: "show keys",
}, {
input: "show master status",
output: "show master",
}, {
input: "show open tables",
output: "show open",
}, {
input: "show plugins",
output: "show plugins",
}, {
input: "show privileges",
output: "show privileges",
}, {
input: "show procedure code p",
output: "show procedure",
}, {
input: "show procedure status",
output: "show procedure",
}, {
input: "show processlist",
output: "show processlist",
}, {
input: "show full processlist",
output: "show full",
}, {
input: "show profile cpu for query 1",
output: "show profile",
}, {
input: "show profiles",
output: "show profiles",
}, {
input: "show relaylog events",
output: "show relaylog",
}, {
input: "show slave hosts",
output: "show slave",
}, {
input: "show slave status",
output: "show slave",
}, {
input: "show status",
output: "show status",
}, {
input: "show global status",
output: "show global",
}, {
input: "show session status",
output: "show session",
}, {
input: "show table status",
output: "show table",
}, {
input: "show tables",
output: "show tables",
}, {
input: "show full tables",
output: "show full",
}, {
input: "show triggers",
output: "show triggers",
}, {
input: "show variables",
output: "show variables",
}, {
input: "show global variables",
output: "show global",
}, {
input: "show session variables",
output: "show session",
}, {
input: "show vitess_keyspaces",
output: "show vitess_keyspaces",
Expand All @@ -821,11 +959,14 @@ var (
input: "show vschema_tables",
output: "show vschema_tables",
}, {
input: "show create database",
output: "show unsupported",
input: "show warnings",
output: "show warnings",
}, {
input: "show foobar",
output: "show unsupported",
output: "show foobar",
}, {
input: "show foobar like select * from table where syntax is 'ignored'",
output: "show foobar",
}, {
input: "use db",
output: "use db",
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