From 5362d2fc8468795e6718c6e58dff20077c898670 Mon Sep 17 00:00:00 2001
From: m0003r <m0003r@gmail.com>
Date: Tue, 7 Apr 2020 18:07:57 +0300
Subject: [PATCH] EXISTS also is a function, not only keyword

---
 src/Contexts/ContextMariaDb100000.php   | 15 ++++++++-------
 src/Contexts/ContextMariaDb100100.php   | 15 ++++++++-------
 src/Contexts/ContextMariaDb100200.php   | 15 ++++++++-------
 src/Contexts/ContextMariaDb100300.php   | 15 ++++++++-------
 src/Contexts/ContextMySql50000.php      | 15 ++++++++-------
 src/Contexts/ContextMySql50100.php      | 15 ++++++++-------
 src/Contexts/ContextMySql50500.php      | 15 ++++++++-------
 src/Contexts/ContextMySql50600.php      | 15 ++++++++-------
 src/Contexts/ContextMySql50700.php      | 15 ++++++++-------
 src/Contexts/ContextMySql80000.php      | 15 ++++++++-------
 tests/Parser/SelectStatementTest.php    |  5 +++--
 tests/data/parser/parseSelectExists.in  |  1 +
 tests/data/parser/parseSelectExists.out |  4 ++++
 tools/ContextGenerator.php              |  3 ++-
 tools/contexts/_common.txt              |  1 +
 15 files changed, 91 insertions(+), 73 deletions(-)
 create mode 100644 tests/data/parser/parseSelectExists.in
 create mode 100644 tests/data/parser/parseSelectExists.out

diff --git a/src/Contexts/ContextMariaDb100000.php b/src/Contexts/ContextMariaDb100000.php
index 7e0b04dee..995d29fd3 100644
--- a/src/Contexts/ContextMariaDb100000.php
+++ b/src/Contexts/ContextMariaDb100000.php
@@ -3,7 +3,8 @@
 /**
  * Context for MariaDB 10.0.
  *
- * This file was auto-generated.
+ * This file was auto-generated from tools/contexts/*.txt.
+ * Use tools/run_generators.sh for update.
  *
  * @see https://mariadb.com/kb/en/the-mariadb-library/reserved-words/
  */
@@ -126,10 +127,10 @@ class ContextMariaDb100000 extends Context
         'UNION' => 3, 'USAGE' => 3, 'USING' => 3, 'WHERE' => 3, 'WHILE' => 3,
         'WRITE' => 3,
         'BEFORE' => 3, 'CHANGE' => 3, 'COLUMN' => 3, 'CREATE' => 3, 'CURSOR' => 3,
-        'DELETE' => 3, 'ELSEIF' => 3, 'EXISTS' => 3, 'FLOAT4' => 3, 'FLOAT8' => 3,
-        'HAVING' => 3, 'IGNORE' => 3, 'INFILE' => 3, 'LINEAR' => 3, 'OPTION' => 3,
-        'REGEXP' => 3, 'RENAME' => 3, 'RETURN' => 3, 'REVOKE' => 3, 'SELECT' => 3,
-        'SIGNAL' => 3, 'UNLOCK' => 3, 'UPDATE' => 3,
+        'DELETE' => 3, 'ELSEIF' => 3, 'FLOAT4' => 3, 'FLOAT8' => 3, 'HAVING' => 3,
+        'IGNORE' => 3, 'INFILE' => 3, 'LINEAR' => 3, 'OPTION' => 3, 'REGEXP' => 3,
+        'RENAME' => 3, 'RETURN' => 3, 'REVOKE' => 3, 'SELECT' => 3, 'SIGNAL' => 3,
+        'UNLOCK' => 3, 'UPDATE' => 3,
         'ANALYZE' => 3, 'BETWEEN' => 3, 'CASCADE' => 3, 'COLLATE' => 3, 'DECLARE' => 3,
         'DELAYED' => 3, 'ESCAPED' => 3, 'EXPLAIN' => 3, 'FOREIGN' => 3, 'ITERATE' => 3,
         'LEADING' => 3, 'NATURAL' => 3, 'OUTFILE' => 3, 'PRIMARY' => 3, 'RELEASE' => 3,
@@ -278,7 +279,7 @@ class ContextMariaDb100000 extends Context
         'MOD' => 35,
         'LEFT' => 35,
         'MATCH' => 35, 'RIGHT' => 35,
-        'INSERT' => 35, 'REPEAT' => 35, 'SCHEMA' => 35, 'VALUES' => 35,
+        'EXISTS' => 35, 'INSERT' => 35, 'REPEAT' => 35, 'SCHEMA' => 35, 'VALUES' => 35,
         'CONVERT' => 35, 'DEFAULT' => 35, 'REPLACE' => 35,
         'DATABASE' => 35, 'UTC_DATE' => 35, 'UTC_TIME' => 35,
         'LOCALTIME' => 35,
@@ -299,6 +300,6 @@ class ContextMariaDb100000 extends Context
 
         'CHAR' => 43,
         'BINARY' => 43,
-        'INTERVAL' => 43
+        'INTERVAL' => 43,
     );
 }
diff --git a/src/Contexts/ContextMariaDb100100.php b/src/Contexts/ContextMariaDb100100.php
index e83994500..efd7b7416 100644
--- a/src/Contexts/ContextMariaDb100100.php
+++ b/src/Contexts/ContextMariaDb100100.php
@@ -3,7 +3,8 @@
 /**
  * Context for MariaDB 10.1.
  *
- * This file was auto-generated.
+ * This file was auto-generated from tools/contexts/*.txt.
+ * Use tools/run_generators.sh for update.
  *
  * @see https://mariadb.com/kb/en/the-mariadb-library/reserved-words/
  */
@@ -135,10 +136,10 @@ class ContextMariaDb100100 extends Context
         'UNION' => 3, 'USAGE' => 3, 'USING' => 3, 'WHERE' => 3, 'WHILE' => 3,
         'WRITE' => 3,
         'BEFORE' => 3, 'CHANGE' => 3, 'COLUMN' => 3, 'CREATE' => 3, 'CURSOR' => 3,
-        'DELETE' => 3, 'ELSEIF' => 3, 'EXISTS' => 3, 'FLOAT4' => 3, 'FLOAT8' => 3,
-        'HAVING' => 3, 'IGNORE' => 3, 'INFILE' => 3, 'LINEAR' => 3, 'OPTION' => 3,
-        'REGEXP' => 3, 'RENAME' => 3, 'RETURN' => 3, 'REVOKE' => 3, 'SELECT' => 3,
-        'SIGNAL' => 3, 'STORED' => 3, 'UNLOCK' => 3, 'UPDATE' => 3,
+        'DELETE' => 3, 'ELSEIF' => 3, 'FLOAT4' => 3, 'FLOAT8' => 3, 'HAVING' => 3,
+        'IGNORE' => 3, 'INFILE' => 3, 'LINEAR' => 3, 'OPTION' => 3, 'REGEXP' => 3,
+        'RENAME' => 3, 'RETURN' => 3, 'REVOKE' => 3, 'SELECT' => 3, 'SIGNAL' => 3,
+        'STORED' => 3, 'UNLOCK' => 3, 'UPDATE' => 3,
         'ANALYZE' => 3, 'BETWEEN' => 3, 'CASCADE' => 3, 'COLLATE' => 3, 'DECLARE' => 3,
         'DELAYED' => 3, 'ESCAPED' => 3, 'EXPLAIN' => 3, 'FOREIGN' => 3, 'ITERATE' => 3,
         'LEADING' => 3, 'NATURAL' => 3, 'OUTFILE' => 3, 'PRIMARY' => 3, 'RELEASE' => 3,
@@ -325,7 +326,7 @@ class ContextMariaDb100100 extends Context
         'MOD' => 35,
         'LEFT' => 35,
         'MATCH' => 35, 'RIGHT' => 35,
-        'INSERT' => 35, 'REPEAT' => 35, 'SCHEMA' => 35, 'VALUES' => 35,
+        'EXISTS' => 35, 'INSERT' => 35, 'REPEAT' => 35, 'SCHEMA' => 35, 'VALUES' => 35,
         'CONVERT' => 35, 'DEFAULT' => 35, 'REPLACE' => 35,
         'DATABASE' => 35, 'UTC_DATE' => 35, 'UTC_TIME' => 35,
         'LOCALTIME' => 35,
@@ -346,6 +347,6 @@ class ContextMariaDb100100 extends Context
 
         'CHAR' => 43,
         'BINARY' => 43,
-        'INTERVAL' => 43
+        'INTERVAL' => 43,
     );
 }
diff --git a/src/Contexts/ContextMariaDb100200.php b/src/Contexts/ContextMariaDb100200.php
index f1d6be8e4..a3cc639b8 100644
--- a/src/Contexts/ContextMariaDb100200.php
+++ b/src/Contexts/ContextMariaDb100200.php
@@ -3,7 +3,8 @@
 /**
  * Context for MariaDB 10.2.
  *
- * This file was auto-generated.
+ * This file was auto-generated from tools/contexts/*.txt.
+ * Use tools/run_generators.sh for update.
  *
  * @see https://mariadb.com/kb/en/the-mariadb-library/reserved-words/
  */
@@ -135,10 +136,10 @@ class ContextMariaDb100200 extends Context
         'UNION' => 3, 'USAGE' => 3, 'USING' => 3, 'WHERE' => 3, 'WHILE' => 3,
         'WRITE' => 3,
         'BEFORE' => 3, 'CHANGE' => 3, 'COLUMN' => 3, 'CREATE' => 3, 'CURSOR' => 3,
-        'DELETE' => 3, 'ELSEIF' => 3, 'EXISTS' => 3, 'FLOAT4' => 3, 'FLOAT8' => 3,
-        'HAVING' => 3, 'IGNORE' => 3, 'INFILE' => 3, 'LINEAR' => 3, 'OPTION' => 3,
-        'REGEXP' => 3, 'RENAME' => 3, 'RETURN' => 3, 'REVOKE' => 3, 'SELECT' => 3,
-        'SIGNAL' => 3, 'STORED' => 3, 'UNLOCK' => 3, 'UPDATE' => 3,
+        'DELETE' => 3, 'ELSEIF' => 3, 'FLOAT4' => 3, 'FLOAT8' => 3, 'HAVING' => 3,
+        'IGNORE' => 3, 'INFILE' => 3, 'LINEAR' => 3, 'OPTION' => 3, 'REGEXP' => 3,
+        'RENAME' => 3, 'RETURN' => 3, 'REVOKE' => 3, 'SELECT' => 3, 'SIGNAL' => 3,
+        'STORED' => 3, 'UNLOCK' => 3, 'UPDATE' => 3,
         'ANALYZE' => 3, 'BETWEEN' => 3, 'CASCADE' => 3, 'COLLATE' => 3, 'DECLARE' => 3,
         'DELAYED' => 3, 'ESCAPED' => 3, 'EXPLAIN' => 3, 'FOREIGN' => 3, 'ITERATE' => 3,
         'LEADING' => 3, 'NATURAL' => 3, 'OUTFILE' => 3, 'PRIMARY' => 3, 'RELEASE' => 3,
@@ -325,7 +326,7 @@ class ContextMariaDb100200 extends Context
         'MOD' => 35,
         'LEFT' => 35,
         'MATCH' => 35, 'RIGHT' => 35,
-        'INSERT' => 35, 'REPEAT' => 35, 'SCHEMA' => 35, 'VALUES' => 35,
+        'EXISTS' => 35, 'INSERT' => 35, 'REPEAT' => 35, 'SCHEMA' => 35, 'VALUES' => 35,
         'CONVERT' => 35, 'DEFAULT' => 35, 'REPLACE' => 35,
         'DATABASE' => 35, 'UTC_DATE' => 35, 'UTC_TIME' => 35,
         'LOCALTIME' => 35,
@@ -346,6 +347,6 @@ class ContextMariaDb100200 extends Context
 
         'CHAR' => 43,
         'BINARY' => 43,
-        'INTERVAL' => 43
+        'INTERVAL' => 43,
     );
 }
diff --git a/src/Contexts/ContextMariaDb100300.php b/src/Contexts/ContextMariaDb100300.php
index f8530888e..74dfb7f54 100644
--- a/src/Contexts/ContextMariaDb100300.php
+++ b/src/Contexts/ContextMariaDb100300.php
@@ -3,7 +3,8 @@
 /**
  * Context for MariaDB 10.3.
  *
- * This file was auto-generated.
+ * This file was auto-generated from tools/contexts/*.txt.
+ * Use tools/run_generators.sh for update.
  *
  * @see https://mariadb.com/kb/en/the-mariadb-library/reserved-words/
  */
@@ -135,10 +136,10 @@ class ContextMariaDb100300 extends Context
         'UNION' => 3, 'USAGE' => 3, 'USING' => 3, 'WHERE' => 3, 'WHILE' => 3,
         'WRITE' => 3,
         'BEFORE' => 3, 'CHANGE' => 3, 'COLUMN' => 3, 'CREATE' => 3, 'CURSOR' => 3,
-        'DELETE' => 3, 'ELSEIF' => 3, 'EXCEPT' => 3, 'EXISTS' => 3, 'FLOAT4' => 3,
-        'FLOAT8' => 3, 'HAVING' => 3, 'IGNORE' => 3, 'INFILE' => 3, 'LINEAR' => 3,
-        'OPTION' => 3, 'REGEXP' => 3, 'RENAME' => 3, 'RETURN' => 3, 'REVOKE' => 3,
-        'SELECT' => 3, 'SIGNAL' => 3, 'STORED' => 3, 'UNLOCK' => 3, 'UPDATE' => 3,
+        'DELETE' => 3, 'ELSEIF' => 3, 'EXCEPT' => 3, 'FLOAT4' => 3, 'FLOAT8' => 3,
+        'HAVING' => 3, 'IGNORE' => 3, 'INFILE' => 3, 'LINEAR' => 3, 'OPTION' => 3,
+        'REGEXP' => 3, 'RENAME' => 3, 'RETURN' => 3, 'REVOKE' => 3, 'SELECT' => 3,
+        'SIGNAL' => 3, 'STORED' => 3, 'UNLOCK' => 3, 'UPDATE' => 3,
         'ANALYZE' => 3, 'BETWEEN' => 3, 'CASCADE' => 3, 'COLLATE' => 3, 'DECLARE' => 3,
         'DELAYED' => 3, 'ESCAPED' => 3, 'EXPLAIN' => 3, 'FOREIGN' => 3, 'ITERATE' => 3,
         'LEADING' => 3, 'NATURAL' => 3, 'OUTFILE' => 3, 'PRIMARY' => 3, 'RELEASE' => 3,
@@ -325,7 +326,7 @@ class ContextMariaDb100300 extends Context
         'MOD' => 35,
         'LEFT' => 35,
         'MATCH' => 35, 'RIGHT' => 35,
-        'INSERT' => 35, 'REPEAT' => 35, 'SCHEMA' => 35, 'VALUES' => 35,
+        'EXISTS' => 35, 'INSERT' => 35, 'REPEAT' => 35, 'SCHEMA' => 35, 'VALUES' => 35,
         'CONVERT' => 35, 'DEFAULT' => 35, 'REPLACE' => 35,
         'DATABASE' => 35, 'UTC_DATE' => 35, 'UTC_TIME' => 35,
         'LOCALTIME' => 35,
@@ -346,6 +347,6 @@ class ContextMariaDb100300 extends Context
 
         'CHAR' => 43,
         'BINARY' => 43,
-        'INTERVAL' => 43
+        'INTERVAL' => 43,
     );
 }
diff --git a/src/Contexts/ContextMySql50000.php b/src/Contexts/ContextMySql50000.php
index 636ba9a2d..8a95856cc 100644
--- a/src/Contexts/ContextMySql50000.php
+++ b/src/Contexts/ContextMySql50000.php
@@ -3,7 +3,8 @@
 /**
  * Context for MySQL 5.0.
  *
- * This file was auto-generated.
+ * This file was auto-generated from tools/contexts/*.txt.
+ * Use tools/run_generators.sh for update.
  *
  * @see https://dev.mysql.com/doc/refman/5.0/en/keywords.html
  */
@@ -111,10 +112,10 @@ class ContextMySql50000 extends Context
         'PURGE' => 3, 'READS' => 3, 'RLIKE' => 3, 'TABLE' => 3, 'UNION' => 3,
         'USAGE' => 3, 'USING' => 3, 'WHERE' => 3, 'WHILE' => 3, 'WRITE' => 3,
         'BEFORE' => 3, 'CHANGE' => 3, 'COLUMN' => 3, 'CREATE' => 3, 'CURSOR' => 3,
-        'DELETE' => 3, 'ELSEIF' => 3, 'EXISTS' => 3, 'FLOAT4' => 3, 'FLOAT8' => 3,
-        'HAVING' => 3, 'IGNORE' => 3, 'INFILE' => 3, 'OPTION' => 3, 'REGEXP' => 3,
-        'RENAME' => 3, 'RETURN' => 3, 'REVOKE' => 3, 'SELECT' => 3, 'SONAME' => 3,
-        'UNLOCK' => 3, 'UPDATE' => 3,
+        'DELETE' => 3, 'ELSEIF' => 3, 'FLOAT4' => 3, 'FLOAT8' => 3, 'HAVING' => 3,
+        'IGNORE' => 3, 'INFILE' => 3, 'OPTION' => 3, 'REGEXP' => 3, 'RENAME' => 3,
+        'RETURN' => 3, 'REVOKE' => 3, 'SELECT' => 3, 'SONAME' => 3, 'UNLOCK' => 3,
+        'UPDATE' => 3,
         'ANALYZE' => 3, 'BETWEEN' => 3, 'CASCADE' => 3, 'COLLATE' => 3, 'DECLARE' => 3,
         'DELAYED' => 3, 'ESCAPED' => 3, 'EXPLAIN' => 3, 'FOREIGN' => 3, 'ITERATE' => 3,
         'LEADING' => 3, 'NATURAL' => 3, 'OUTFILE' => 3, 'PRIMARY' => 3, 'RELEASE' => 3,
@@ -252,7 +253,7 @@ class ContextMySql50000 extends Context
         'MOD' => 35,
         'LEFT' => 35,
         'MATCH' => 35, 'RIGHT' => 35,
-        'INSERT' => 35, 'REPEAT' => 35, 'SCHEMA' => 35, 'VALUES' => 35,
+        'EXISTS' => 35, 'INSERT' => 35, 'REPEAT' => 35, 'SCHEMA' => 35, 'VALUES' => 35,
         'CONVERT' => 35, 'DEFAULT' => 35, 'REPLACE' => 35,
         'DATABASE' => 35, 'UTC_DATE' => 35, 'UTC_TIME' => 35,
         'LOCALTIME' => 35,
@@ -273,6 +274,6 @@ class ContextMySql50000 extends Context
 
         'CHAR' => 43,
         'BINARY' => 43,
-        'INTERVAL' => 43
+        'INTERVAL' => 43,
     );
 }
diff --git a/src/Contexts/ContextMySql50100.php b/src/Contexts/ContextMySql50100.php
index 4d1dec574..e61030677 100644
--- a/src/Contexts/ContextMySql50100.php
+++ b/src/Contexts/ContextMySql50100.php
@@ -3,7 +3,8 @@
 /**
  * Context for MySQL 5.1.
  *
- * This file was auto-generated.
+ * This file was auto-generated from tools/contexts/*.txt.
+ * Use tools/run_generators.sh for update.
  *
  * @see https://dev.mysql.com/doc/refman/5.1/en/keywords.html
  */
@@ -122,10 +123,10 @@ class ContextMySql50100 extends Context
         'UNION' => 3, 'USAGE' => 3, 'USING' => 3, 'WHERE' => 3, 'WHILE' => 3,
         'WRITE' => 3,
         'BEFORE' => 3, 'CHANGE' => 3, 'COLUMN' => 3, 'CREATE' => 3, 'CURSOR' => 3,
-        'DELETE' => 3, 'ELSEIF' => 3, 'EXISTS' => 3, 'FLOAT4' => 3, 'FLOAT8' => 3,
-        'HAVING' => 3, 'IGNORE' => 3, 'INFILE' => 3, 'LINEAR' => 3, 'OPTION' => 3,
-        'REGEXP' => 3, 'RENAME' => 3, 'RETURN' => 3, 'REVOKE' => 3, 'SELECT' => 3,
-        'UNLOCK' => 3, 'UPDATE' => 3,
+        'DELETE' => 3, 'ELSEIF' => 3, 'FLOAT4' => 3, 'FLOAT8' => 3, 'HAVING' => 3,
+        'IGNORE' => 3, 'INFILE' => 3, 'LINEAR' => 3, 'OPTION' => 3, 'REGEXP' => 3,
+        'RENAME' => 3, 'RETURN' => 3, 'REVOKE' => 3, 'SELECT' => 3, 'UNLOCK' => 3,
+        'UPDATE' => 3,
         'ANALYZE' => 3, 'BETWEEN' => 3, 'CASCADE' => 3, 'COLLATE' => 3, 'DECLARE' => 3,
         'DELAYED' => 3, 'ESCAPED' => 3, 'EXPLAIN' => 3, 'FOREIGN' => 3, 'ITERATE' => 3,
         'LEADING' => 3, 'NATURAL' => 3, 'OUTFILE' => 3, 'PRIMARY' => 3, 'RELEASE' => 3,
@@ -272,7 +273,7 @@ class ContextMySql50100 extends Context
         'MOD' => 35,
         'LEFT' => 35,
         'MATCH' => 35, 'RIGHT' => 35,
-        'INSERT' => 35, 'REPEAT' => 35, 'SCHEMA' => 35, 'VALUES' => 35,
+        'EXISTS' => 35, 'INSERT' => 35, 'REPEAT' => 35, 'SCHEMA' => 35, 'VALUES' => 35,
         'CONVERT' => 35, 'DEFAULT' => 35, 'REPLACE' => 35,
         'DATABASE' => 35, 'UTC_DATE' => 35, 'UTC_TIME' => 35,
         'LOCALTIME' => 35,
@@ -293,6 +294,6 @@ class ContextMySql50100 extends Context
 
         'CHAR' => 43,
         'BINARY' => 43,
-        'INTERVAL' => 43
+        'INTERVAL' => 43,
     );
 }
diff --git a/src/Contexts/ContextMySql50500.php b/src/Contexts/ContextMySql50500.php
index cde1c20fd..08b46245a 100644
--- a/src/Contexts/ContextMySql50500.php
+++ b/src/Contexts/ContextMySql50500.php
@@ -3,7 +3,8 @@
 /**
  * Context for MySQL 5.5.
  *
- * This file was auto-generated.
+ * This file was auto-generated from tools/contexts/*.txt.
+ * Use tools/run_generators.sh for update.
  *
  * @see https://dev.mysql.com/doc/refman/5.5/en/keywords.html
  */
@@ -126,10 +127,10 @@ class ContextMySql50500 extends Context
         'UNION' => 3, 'USAGE' => 3, 'USING' => 3, 'WHERE' => 3, 'WHILE' => 3,
         'WRITE' => 3,
         'BEFORE' => 3, 'CHANGE' => 3, 'COLUMN' => 3, 'CREATE' => 3, 'CURSOR' => 3,
-        'DELETE' => 3, 'ELSEIF' => 3, 'EXISTS' => 3, 'FLOAT4' => 3, 'FLOAT8' => 3,
-        'HAVING' => 3, 'IGNORE' => 3, 'INFILE' => 3, 'LINEAR' => 3, 'OPTION' => 3,
-        'REGEXP' => 3, 'RENAME' => 3, 'RETURN' => 3, 'REVOKE' => 3, 'SELECT' => 3,
-        'SIGNAL' => 3, 'UNLOCK' => 3, 'UPDATE' => 3,
+        'DELETE' => 3, 'ELSEIF' => 3, 'FLOAT4' => 3, 'FLOAT8' => 3, 'HAVING' => 3,
+        'IGNORE' => 3, 'INFILE' => 3, 'LINEAR' => 3, 'OPTION' => 3, 'REGEXP' => 3,
+        'RENAME' => 3, 'RETURN' => 3, 'REVOKE' => 3, 'SELECT' => 3, 'SIGNAL' => 3,
+        'UNLOCK' => 3, 'UPDATE' => 3,
         'ANALYZE' => 3, 'BETWEEN' => 3, 'CASCADE' => 3, 'COLLATE' => 3, 'DECLARE' => 3,
         'DELAYED' => 3, 'ESCAPED' => 3, 'EXPLAIN' => 3, 'FOREIGN' => 3, 'ITERATE' => 3,
         'LEADING' => 3, 'NATURAL' => 3, 'OUTFILE' => 3, 'PRIMARY' => 3, 'RELEASE' => 3,
@@ -278,7 +279,7 @@ class ContextMySql50500 extends Context
         'MOD' => 35,
         'LEFT' => 35,
         'MATCH' => 35, 'RIGHT' => 35,
-        'INSERT' => 35, 'REPEAT' => 35, 'SCHEMA' => 35, 'VALUES' => 35,
+        'EXISTS' => 35, 'INSERT' => 35, 'REPEAT' => 35, 'SCHEMA' => 35, 'VALUES' => 35,
         'CONVERT' => 35, 'DEFAULT' => 35, 'REPLACE' => 35,
         'DATABASE' => 35, 'UTC_DATE' => 35, 'UTC_TIME' => 35,
         'LOCALTIME' => 35,
@@ -299,6 +300,6 @@ class ContextMySql50500 extends Context
 
         'CHAR' => 43,
         'BINARY' => 43,
-        'INTERVAL' => 43
+        'INTERVAL' => 43,
     );
 }
diff --git a/src/Contexts/ContextMySql50600.php b/src/Contexts/ContextMySql50600.php
index 7a1aa1234..bf1372ca5 100644
--- a/src/Contexts/ContextMySql50600.php
+++ b/src/Contexts/ContextMySql50600.php
@@ -3,7 +3,8 @@
 /**
  * Context for MySQL 5.6.
  *
- * This file was auto-generated.
+ * This file was auto-generated from tools/contexts/*.txt.
+ * Use tools/run_generators.sh for update.
  *
  * @see https://dev.mysql.com/doc/refman/5.6/en/keywords.html
  */
@@ -130,10 +131,10 @@ class ContextMySql50600 extends Context
         'UNION' => 3, 'USAGE' => 3, 'USING' => 3, 'WHERE' => 3, 'WHILE' => 3,
         'WRITE' => 3,
         'BEFORE' => 3, 'CHANGE' => 3, 'COLUMN' => 3, 'CREATE' => 3, 'CURSOR' => 3,
-        'DELETE' => 3, 'ELSEIF' => 3, 'EXISTS' => 3, 'FLOAT4' => 3, 'FLOAT8' => 3,
-        'HAVING' => 3, 'IGNORE' => 3, 'INFILE' => 3, 'LINEAR' => 3, 'OPTION' => 3,
-        'REGEXP' => 3, 'RENAME' => 3, 'RETURN' => 3, 'REVOKE' => 3, 'SELECT' => 3,
-        'SIGNAL' => 3, 'UNLOCK' => 3, 'UPDATE' => 3,
+        'DELETE' => 3, 'ELSEIF' => 3, 'FLOAT4' => 3, 'FLOAT8' => 3, 'HAVING' => 3,
+        'IGNORE' => 3, 'INFILE' => 3, 'LINEAR' => 3, 'OPTION' => 3, 'REGEXP' => 3,
+        'RENAME' => 3, 'RETURN' => 3, 'REVOKE' => 3, 'SELECT' => 3, 'SIGNAL' => 3,
+        'UNLOCK' => 3, 'UPDATE' => 3,
         'ANALYZE' => 3, 'BETWEEN' => 3, 'CASCADE' => 3, 'COLLATE' => 3, 'DECLARE' => 3,
         'DELAYED' => 3, 'ESCAPED' => 3, 'EXPLAIN' => 3, 'FOREIGN' => 3, 'ITERATE' => 3,
         'LEADING' => 3, 'NATURAL' => 3, 'OUTFILE' => 3, 'PRIMARY' => 3, 'RELEASE' => 3,
@@ -303,7 +304,7 @@ class ContextMySql50600 extends Context
         'MOD' => 35,
         'LEFT' => 35,
         'MATCH' => 35, 'RIGHT' => 35,
-        'INSERT' => 35, 'REPEAT' => 35, 'SCHEMA' => 35, 'VALUES' => 35,
+        'EXISTS' => 35, 'INSERT' => 35, 'REPEAT' => 35, 'SCHEMA' => 35, 'VALUES' => 35,
         'CONVERT' => 35, 'DEFAULT' => 35, 'REPLACE' => 35,
         'DATABASE' => 35, 'UTC_DATE' => 35, 'UTC_TIME' => 35,
         'LOCALTIME' => 35,
@@ -324,6 +325,6 @@ class ContextMySql50600 extends Context
 
         'CHAR' => 43,
         'BINARY' => 43,
-        'INTERVAL' => 43
+        'INTERVAL' => 43,
     );
 }
diff --git a/src/Contexts/ContextMySql50700.php b/src/Contexts/ContextMySql50700.php
index e02689dbc..4ee4f8688 100644
--- a/src/Contexts/ContextMySql50700.php
+++ b/src/Contexts/ContextMySql50700.php
@@ -3,7 +3,8 @@
 /**
  * Context for MySQL 5.7.
  *
- * This file was auto-generated.
+ * This file was auto-generated from tools/contexts/*.txt.
+ * Use tools/run_generators.sh for update.
  *
  * @see https://dev.mysql.com/doc/refman/5.7/en/keywords.html
  */
@@ -135,10 +136,10 @@ class ContextMySql50700 extends Context
         'UNION' => 3, 'USAGE' => 3, 'USING' => 3, 'WHERE' => 3, 'WHILE' => 3,
         'WRITE' => 3,
         'BEFORE' => 3, 'CHANGE' => 3, 'COLUMN' => 3, 'CREATE' => 3, 'CURSOR' => 3,
-        'DELETE' => 3, 'ELSEIF' => 3, 'EXISTS' => 3, 'FLOAT4' => 3, 'FLOAT8' => 3,
-        'HAVING' => 3, 'IGNORE' => 3, 'INFILE' => 3, 'LINEAR' => 3, 'OPTION' => 3,
-        'REGEXP' => 3, 'RENAME' => 3, 'RETURN' => 3, 'REVOKE' => 3, 'SELECT' => 3,
-        'SIGNAL' => 3, 'STORED' => 3, 'UNLOCK' => 3, 'UPDATE' => 3,
+        'DELETE' => 3, 'ELSEIF' => 3, 'FLOAT4' => 3, 'FLOAT8' => 3, 'HAVING' => 3,
+        'IGNORE' => 3, 'INFILE' => 3, 'LINEAR' => 3, 'OPTION' => 3, 'REGEXP' => 3,
+        'RENAME' => 3, 'RETURN' => 3, 'REVOKE' => 3, 'SELECT' => 3, 'SIGNAL' => 3,
+        'STORED' => 3, 'UNLOCK' => 3, 'UPDATE' => 3,
         'ANALYZE' => 3, 'BETWEEN' => 3, 'CASCADE' => 3, 'COLLATE' => 3, 'DECLARE' => 3,
         'DELAYED' => 3, 'ESCAPED' => 3, 'EXPLAIN' => 3, 'FOREIGN' => 3, 'ITERATE' => 3,
         'LEADING' => 3, 'NATURAL' => 3, 'OUTFILE' => 3, 'PRIMARY' => 3, 'RELEASE' => 3,
@@ -325,7 +326,7 @@ class ContextMySql50700 extends Context
         'MOD' => 35,
         'LEFT' => 35,
         'MATCH' => 35, 'RIGHT' => 35,
-        'INSERT' => 35, 'REPEAT' => 35, 'SCHEMA' => 35, 'VALUES' => 35,
+        'EXISTS' => 35, 'INSERT' => 35, 'REPEAT' => 35, 'SCHEMA' => 35, 'VALUES' => 35,
         'CONVERT' => 35, 'DEFAULT' => 35, 'REPLACE' => 35,
         'DATABASE' => 35, 'UTC_DATE' => 35, 'UTC_TIME' => 35,
         'LOCALTIME' => 35,
@@ -346,6 +347,6 @@ class ContextMySql50700 extends Context
 
         'CHAR' => 43,
         'BINARY' => 43,
-        'INTERVAL' => 43
+        'INTERVAL' => 43,
     );
 }
diff --git a/src/Contexts/ContextMySql80000.php b/src/Contexts/ContextMySql80000.php
index d7465211b..e06b27625 100644
--- a/src/Contexts/ContextMySql80000.php
+++ b/src/Contexts/ContextMySql80000.php
@@ -3,7 +3,8 @@
 /**
  * Context for MySQL 8.0.
  *
- * This file was auto-generated.
+ * This file was auto-generated from tools/contexts/*.txt.
+ * Use tools/run_generators.sh for update.
  *
  * @see https://dev.mysql.com/doc/refman/8.0/en/keywords.html
  */
@@ -136,10 +137,10 @@ class ContextMySql80000 extends Context
         'UNION' => 3, 'USAGE' => 3, 'USING' => 3, 'WHERE' => 3, 'WHILE' => 3,
         'WRITE' => 3,
         'BEFORE' => 3, 'CHANGE' => 3, 'COLUMN' => 3, 'CREATE' => 3, 'CURSOR' => 3,
-        'DELETE' => 3, 'ELSEIF' => 3, 'EXISTS' => 3, 'FLOAT4' => 3, 'FLOAT8' => 3,
-        'HAVING' => 3, 'IGNORE' => 3, 'INFILE' => 3, 'LINEAR' => 3, 'OPTION' => 3,
-        'REGEXP' => 3, 'RENAME' => 3, 'RETURN' => 3, 'REVOKE' => 3, 'SELECT' => 3,
-        'SIGNAL' => 3, 'STORED' => 3, 'UNLOCK' => 3, 'UPDATE' => 3,
+        'DELETE' => 3, 'ELSEIF' => 3, 'FLOAT4' => 3, 'FLOAT8' => 3, 'HAVING' => 3,
+        'IGNORE' => 3, 'INFILE' => 3, 'LINEAR' => 3, 'OPTION' => 3, 'REGEXP' => 3,
+        'RENAME' => 3, 'RETURN' => 3, 'REVOKE' => 3, 'SELECT' => 3, 'SIGNAL' => 3,
+        'STORED' => 3, 'UNLOCK' => 3, 'UPDATE' => 3,
         'ANALYZE' => 3, 'BETWEEN' => 3, 'CASCADE' => 3, 'COLLATE' => 3, 'DECLARE' => 3,
         'DELAYED' => 3, 'ESCAPED' => 3, 'EXPLAIN' => 3, 'FOREIGN' => 3, 'ITERATE' => 3,
         'LEADING' => 3, 'NATURAL' => 3, 'OUTFILE' => 3, 'PRIMARY' => 3, 'RELEASE' => 3,
@@ -326,7 +327,7 @@ class ContextMySql80000 extends Context
         'MOD' => 35,
         'LEFT' => 35,
         'MATCH' => 35, 'RIGHT' => 35,
-        'INSERT' => 35, 'REPEAT' => 35, 'SCHEMA' => 35, 'VALUES' => 35,
+        'EXISTS' => 35, 'INSERT' => 35, 'REPEAT' => 35, 'SCHEMA' => 35, 'VALUES' => 35,
         'CONVERT' => 35, 'DEFAULT' => 35, 'REPLACE' => 35,
         'DATABASE' => 35, 'UTC_DATE' => 35, 'UTC_TIME' => 35,
         'LOCALTIME' => 35,
@@ -347,6 +348,6 @@ class ContextMySql80000 extends Context
 
         'CHAR' => 43,
         'BINARY' => 43,
-        'INTERVAL' => 43
+        'INTERVAL' => 43,
     );
 }
diff --git a/tests/Parser/SelectStatementTest.php b/tests/Parser/SelectStatementTest.php
index f4e1e906a..4f0f7acd4 100644
--- a/tests/Parser/SelectStatementTest.php
+++ b/tests/Parser/SelectStatementTest.php
@@ -16,9 +16,9 @@ public function testSelectOptions()
     }
 
     /**
-     * @dataProvider selectProvider
-     *
      * @param mixed $test
+     *
+     * @dataProvider selectProvider
      */
     public function testSelect($test)
     {
@@ -61,6 +61,7 @@ public function selectProvider()
             array('parser/parseSelectCaseAliasErr2'),
             array('parser/parseSelectCaseAliasErr3'),
             array('parser/parseSelectCaseAliasErr4'),
+            array('parser/parseSelectExists'),
             array('parser/parseSelectIntoOptions1'),
             array('parser/parseSelectIntoOptions2'),
             array('parser/parseSelectIntoOptions3'),
diff --git a/tests/data/parser/parseSelectExists.in b/tests/data/parser/parseSelectExists.in
new file mode 100644
index 000000000..98d89d790
--- /dev/null
+++ b/tests/data/parser/parseSelectExists.in
@@ -0,0 +1 @@
+SELECT EXISTS(SELECT 1)
diff --git a/tests/data/parser/parseSelectExists.out b/tests/data/parser/parseSelectExists.out
new file mode 100644
index 000000000..17304652a
--- /dev/null
+++ b/tests/data/parser/parseSelectExists.out
@@ -0,0 +1,4 @@
+a:4:{s:5:"query";s:24:"SELECT EXISTS(SELECT 1)
+";s:5:"lexer";O:26:"PhpMyAdmin\SqlParser\Lexer":8:{s:3:"str";s:24:"SELECT EXISTS(SELECT 1)
+";s:3:"len";i:24;s:4:"last";i:24;s:4:"list";O:31:"PhpMyAdmin\SqlParser\TokensList":3:{s:6:"tokens";a:10:{i:0;O:26:"PhpMyAdmin\SqlParser\Token":6:{s:5:"token";s:6:"SELECT";s:5:"value";s:6:"SELECT";s:7:"keyword";s:6:"SELECT";s:4:"type";i:1;s:5:"flags";i:3;s:8:"position";i:0;}i:1;O:26:"PhpMyAdmin\SqlParser\Token":6:{s:5:"token";s:1:" ";s:5:"value";s:1:" ";s:7:"keyword";N;s:4:"type";i:3;s:5:"flags";i:0;s:8:"position";i:6;}i:2;O:26:"PhpMyAdmin\SqlParser\Token":6:{s:5:"token";s:6:"EXISTS";s:5:"value";s:6:"EXISTS";s:7:"keyword";s:6:"EXISTS";s:4:"type";i:1;s:5:"flags";i:35;s:8:"position";i:7;}i:3;O:26:"PhpMyAdmin\SqlParser\Token":6:{s:5:"token";s:1:"(";s:5:"value";s:1:"(";s:7:"keyword";N;s:4:"type";i:2;s:5:"flags";i:16;s:8:"position";i:13;}i:4;O:26:"PhpMyAdmin\SqlParser\Token":6:{s:5:"token";s:6:"SELECT";s:5:"value";s:6:"SELECT";s:7:"keyword";s:6:"SELECT";s:4:"type";i:1;s:5:"flags";i:3;s:8:"position";i:14;}i:5;O:26:"PhpMyAdmin\SqlParser\Token":6:{s:5:"token";s:1:" ";s:5:"value";s:1:" ";s:7:"keyword";N;s:4:"type";i:3;s:5:"flags";i:0;s:8:"position";i:20;}i:6;O:26:"PhpMyAdmin\SqlParser\Token":6:{s:5:"token";s:1:"1";s:5:"value";i:1;s:7:"keyword";N;s:4:"type";i:6;s:5:"flags";i:0;s:8:"position";i:21;}i:7;O:26:"PhpMyAdmin\SqlParser\Token":6:{s:5:"token";s:1:")";s:5:"value";s:1:")";s:7:"keyword";N;s:4:"type";i:2;s:5:"flags";i:16;s:8:"position";i:22;}i:8;O:26:"PhpMyAdmin\SqlParser\Token":6:{s:5:"token";s:1:"
+";s:5:"value";s:1:" ";s:7:"keyword";N;s:4:"type";i:3;s:5:"flags";i:0;s:8:"position";i:23;}i:9;O:26:"PhpMyAdmin\SqlParser\Token":6:{s:5:"token";N;s:5:"value";N;s:7:"keyword";N;s:4:"type";i:9;s:5:"flags";i:0;s:8:"position";N;}}s:5:"count";i:10;s:3:"idx";i:10;}s:9:"delimiter";s:1:";";s:12:"delimiterLen";i:1;s:6:"strict";b:0;s:6:"errors";a:0:{}}s:6:"parser";O:27:"PhpMyAdmin\SqlParser\Parser":5:{s:4:"list";r:7;s:10:"statements";a:1:{i:0;O:47:"PhpMyAdmin\SqlParser\Statements\SelectStatement":17:{s:4:"expr";a:1:{i:0;O:42:"PhpMyAdmin\SqlParser\Components\Expression":7:{s:8:"database";N;s:5:"table";N;s:6:"column";N;s:4:"expr";s:16:"EXISTS(SELECT 1)";s:5:"alias";N;s:8:"function";s:6:"EXISTS";s:8:"subquery";s:6:"SELECT";}}s:4:"from";a:0:{}s:11:"index_hints";N;s:9:"partition";N;s:5:"where";N;s:5:"group";N;s:6:"having";N;s:5:"order";N;s:5:"limit";N;s:9:"procedure";N;s:4:"into";N;s:4:"join";N;s:5:"union";a:0:{}s:11:"end_options";N;s:7:"options";O:44:"PhpMyAdmin\SqlParser\Components\OptionsArray":1:{s:7:"options";a:0:{}}s:5:"first";i:0;s:4:"last";i:8;}}s:8:"brackets";i:0;s:6:"strict";b:0;s:6:"errors";a:0:{}}s:6:"errors";a:2:{s:5:"lexer";a:0:{}s:6:"parser";a:0:{}}}
\ No newline at end of file
diff --git a/tools/ContextGenerator.php b/tools/ContextGenerator.php
index b31c7e125..0d1fbddd8 100644
--- a/tools/ContextGenerator.php
+++ b/tools/ContextGenerator.php
@@ -60,7 +60,8 @@ class ContextGenerator
         '/**' . "\n" .
         ' * Context for %1$s.' . "\n" .
         ' *' . "\n" .
-        ' * This file was auto-generated.' . "\n" .
+        ' * This file was auto-generated from tools/contexts/*.txt.' . "\n" .
+        ' * Use tools/run_generators.sh for update.' . "\n" .
         ' *' . "\n" .
         ' * @see %3$s' . "\n" .
         ' */' . "\n" .
diff --git a/tools/contexts/_common.txt b/tools/contexts/_common.txt
index bc8968bdd..85e755536 100644
--- a/tools/contexts/_common.txt
+++ b/tools/contexts/_common.txt
@@ -24,6 +24,7 @@ DOUBLE (D)
 ENCLOSED BY
 ENUM (D)
 ESCAPED BY
+EXISTS (F)
 FLOAT (D)
 FOR EACH ROW
 FOR UPDATE