cherry pick pingcap#35325 to release-6.1

Signed-off-by: ti-srebot <ti-srebot@pingcap.com>

bindinfo/bind_test.go

@@ -331,6 +331,29 @@ func TestExplain(t *testing.T) {
 	tk.MustExec("drop global binding for SELECT * from t1 union SELECT * from t1")
 }
 
+func TestBindSemiJoinRewrite(t *testing.T) {
+	store, clean := testkit.CreateMockStore(t)
+	defer clean()
+
+	tk := testkit.NewTestKit(t, store)
+	tk.MustExec("use test")
+	tk.MustExec("drop table if exists t1")
+	tk.MustExec("drop table if exists t2")
+	tk.MustExec("create table t1(id int)")
+	tk.MustExec("create table t2(id int)")
+	require.True(t, tk.HasKeywordInOperatorInfo("select * from t1 where exists(select 1 from t2 where t1.id=t2.id)", "semi join"))
+	require.True(t, tk.NotHasKeywordInOperatorInfo("select * from t1 where exists(select /*+ SEMI_JOIN_REWRITE() */ 1 from t2 where t1.id=t2.id)", "semi join"))
+
+	tk.MustExec(`
+create global binding for
+	select * from t1 where exists(select 1 from t2 where t1.id=t2.id)
+using
+	select * from t1 where exists(select /*+ SEMI_JOIN_REWRITE() */ 1 from t2 where t1.id=t2.id)
+`)
+
+	require.True(t, tk.NotHasKeywordInOperatorInfo("select * from t1 where exists(select 1 from t2 where t1.id=t2.id)", "semi join"))
+}
+
 // TestBindingSymbolList tests sql with "?, ?, ?, ?", fixes #13871
 func TestBindingSymbolList(t *testing.T) {
 	store, dom, clean := testkit.CreateMockStoreAndDomain(t)