add UT of 24477

pingcap · May 13, 2021 · e2a5787 · e2a5787
1 parent 54806f6
commit e2a5787
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/util/ranger/ranger_test.go b/util/ranger/ranger_test.go
@@ -1504,12 +1504,13 @@ func (s *testRangerSuite) TestIndexRangeForYear(c *C) {
 	// test index range
 	testKit.MustExec("DROP TABLE IF EXISTS t")
 	testKit.MustExec("CREATE TABLE t (a year(4), key(a))")
-	testKit.MustExec("INSERT INTO t VALUES (1), (70), (99), (0), ('0')")
+	testKit.MustExec("INSERT INTO t VALUES (1), (70), (99), (0), ('0'), (NULL)")
 	testKit.MustQuery("SELECT * FROM t WHERE a < 15698").Check(testkit.Rows("0", "1970", "1999", "2000", "2001"))
 	testKit.MustQuery("SELECT * FROM t WHERE a <= 0").Check(testkit.Rows("0"))
 	testKit.MustQuery("SELECT * FROM t WHERE a <= 1").Check(testkit.Rows("0", "1970", "1999", "2000", "2001"))
 	testKit.MustQuery("SELECT * FROM t WHERE a < 2000").Check(testkit.Rows("0", "1970", "1999"))
 	testKit.MustQuery("SELECT * FROM t WHERE a > -1").Check(testkit.Rows("0", "1970", "1999", "2000", "2001"))
+	testKit.MustQuery("SELECT * FROM t WHERE a <=> NULL").Check(testkit.Rows("<nil>"))
 
 	tests := []struct {
 		indexPos    int