[parser] model: add in union flag (pingcap#351)

Signed-off-by: Lonng <[email protected]>
xhebox · Jun 12, 2019 · 45d4322 · 45d4322
1 parent 74c46c4
commit 45d4322
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/parser/model/flags.go b/parser/model/flags.go
@@ -40,4 +40,6 @@ const (
 	FlagIgnoreZeroInDate = 1 << 7
 	// FlagDividedByZeroAsWarning indicates if DividedByZero should be returned as warning.
 	FlagDividedByZeroAsWarning = 1 << 8
+	// FlagInUnionStmt indicates if this is a UNION statement.
+	FlagInUnionStmt = 1 << 9
 )