parser: Support show function status grammar (pingcap#1710)

Parsed but do nothing. Just make workbench happy.
bodysen · Sep 9, 2016 · 099e8a9 · 099e8a9
1 parent dde36a1
commit 099e8a9
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Showing 3 changed files with 15 additions and 2 deletions.
diff --git a/parser/misc.go b/parser/misc.go
@@ -238,6 +238,7 @@ var tokenMap = map[string]int{
 	"FROM":                from,
 	"FULL":                full,
 	"FULLTEXT":            fulltext,
+	"FUNCTION":            function,
 	"FLUSH":               flush,
 	"GET_LOCK":            getLock,
 	"GLOBAL":              global,

diff --git a/parser/parser.y b/parser/parser.y
@@ -160,6 +160,7 @@ import (
 	fixed		"FIXED"
 	flush		"FLUSH"
 	full		"FULL"
+	function	"FUNCTION"
 	grants		"GRANTS"
 	hash		"HASH"
 	identified	"IDENTIFIED"
@@ -1967,7 +1968,7 @@ UnReservedKeyword:
 |	"COLLATION" | "COMMENT" | "AVG_ROW_LENGTH" | "CONNECTION" | "CHECKSUM" | "COMPRESSION" | "KEY_BLOCK_SIZE" | "MAX_ROWS"
 |	"MIN_ROWS" | "NATIONAL" | "ROW" | "ROW_FORMAT" | "QUARTER" | "GRANTS" | "TRIGGERS" | "DELAY_KEY_WRITE" | "ISOLATION"
 |	"REPEATABLE" | "COMMITTED" | "UNCOMMITTED" | "ONLY" | "SERIALIZABLE" | "LEVEL" | "VARIABLES" | "SQL_CACHE"
-|	"SQL_NO_CACHE" | "DISABLE"  | "ENABLE" | "REVERSE" | "SPACE" | "PRIVILEGES" | "NO" | "BINLOG"
+|	"SQL_NO_CACHE" | "DISABLE"  | "ENABLE" | "REVERSE" | "SPACE" | "PRIVILEGES" | "NO" | "BINLOG" | "FUNCTION"
 
 NotKeywordToken:
 	"ABS" | "ADDDATE" | "ADMIN" | "COALESCE" | "CONCAT" | "CONCAT_WS" | "CONNECTION_ID" | "CUR_TIME"| "COUNT" | "DAY"
@@ -4062,6 +4063,16 @@ ShowTargetFilterable:
 			Tp: ast.ShowProcedureStatus,
 		}
 	}
+|	"FUNCTION" "STATUS"
+	{
+		// This statement is similar to SHOW PROCEDURE STATUS but for stored functions.
+		// See http://dev.mysql.com/doc/refman/5.7/en/show-function-status.html
+		// We do not support neither stored functions nor stored procedures.
+		// So we reuse show procedure status process logic.
+		$$ = &ast.ShowStmt {
+			Tp: ast.ShowProcedureStatus,
+		}
+	}
 
 ShowLikeOrWhereOpt:
 	{

diff --git a/parser/parser_test.go b/parser/parser_test.go
@@ -49,7 +49,7 @@ func (s *testParserSuite) TestSimple(c *C) {
 		"curtime", "variables", "dayname", "version", "btree", "hash", "row_format", "dynamic", "fixed", "compressed",
 		"compact", "redundant", "sql_no_cache sql_no_cache", "sql_cache sql_cache", "action", "round",
 		"enable", "disable", "reverse", "space", "privileges", "get_lock", "release_lock", "sleep", "no", "greatest",
-		"binlog", "hex", "unhex",
+		"binlog", "hex", "unhex", "function",
 	}
 	for _, kw := range unreservedKws {
 		src := fmt.Sprintf("SELECT %s FROM tbl;", kw)
@@ -325,6 +325,7 @@ func (s *testParserSuite) TestDBAStmt(c *C) {
 		{`SHOW TRIGGERS LIKE 't'`, true},
 		{`SHOW DATABASES LIKE 'test2'`, true},
 		{`SHOW PROCEDURE STATUS WHERE Db='test'`, true},
+		{`SHOW FUNCTION STATUS WHERE Db='test'`, true},
 		{`SHOW INDEX FROM t;`, true},
 		{`SHOW KEYS FROM t;`, true},
 		// For show character set