diff --git a/go/vt/vtgate/evalengine/testcases/cases.go b/go/vt/vtgate/evalengine/testcases/cases.go
index 9d8ac5f69a9..0c12b4afa6a 100644
--- a/go/vt/vtgate/evalengine/testcases/cases.go
+++ b/go/vt/vtgate/evalengine/testcases/cases.go
@@ -1781,6 +1781,9 @@ func FnToDays(yield Query) {
 		`DATE'0000-00-00 00:00:00'`,
 		`950501`,
 		`'2007-10-07'`,
+		`'2008-10-07'`,
+		`'08-10-07'`,
+		`'0000-01-01'`,
 	}
 
 	for _, d := range dates {