feat: support IS UNKNOWN as synonym to IS NULL (#15673)

vitessio · Apr 8, 2024 · ab6a5b4 · ab6a5b4
1 parent e118bbc
commit ab6a5b4
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Showing 8 changed files with 7,799 additions and 7,809 deletions.
diff --git a/go/vt/sqlparser/keywords.go b/go/vt/sqlparser/keywords.go
@@ -721,6 +721,7 @@ var keywords = []keyword{
 	{"unicode", UNICODE},
 	{"union", UNION},
 	{"unique", UNIQUE},
+	{"unknown", UNKNOWN},
 	{"unlock", UNLOCK},
 	{"unsigned", UNSIGNED},
 	{"unthrottle", UNTHROTTLE},

diff --git a/go/vt/sqlparser/parse_test.go b/go/vt/sqlparser/parse_test.go
@@ -3790,6 +3790,9 @@ var (
 	}, {
 		input:  `kill 18446744073709551615`,
 		output: `kill connection 18446744073709551615`,
+	}, {
+		input:  `select * from tbl where foo is unknown or bar is not unknown`,
+		output: `select * from tbl where foo is null or bar is not null`,
 	}}
 )