Add test for tidb/issues/49241 (#8480)

tests/fullstack-test/mpp/apply_with_late_materialization.test

@@ -0,0 +1,80 @@
+# Copyright 2023 PingCAP, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+# https://github.com/pingcap/tidb/issues/49241
+# Preparation.
+mysql> drop table if exists test.t;
+mysql> drop table if exists test.t1;
+mysql> create table test.t(id int, value int);
+mysql> create table test.t1(id int, value int);
+mysql> insert into test.t values(10,5),(9,5),(8,5),(7,5),(6,5),(5,5),(4,5),(3,5),(2,5),(1,5);
+mysql> insert into test.t1 values(2,5);
+# insert more than 8192 rows to make sure late materialization is enabled.
+mysql> insert into test.t select * from test.t; insert into test.t select * from test.t; insert into test.t select * from test.t; insert into test.t select * from test.t;
+mysql> insert into test.t select * from test.t; insert into test.t select * from test.t; insert into test.t select * from test.t; insert into test.t select * from test.t;
+mysql> insert into test.t select * from test.t; insert into test.t select * from test.t; insert into test.t select * from test.t;
+mysql> alter table test.t set tiflash replica 1;
+mysql> alter table test.t1 set tiflash replica 1;
+mysql> analyze table test.t;
+
+func> wait_table test t t1
+
+# Test.
+
+# MPP
+mysql> set @@tidb_allow_mpp=1; set @@tidb_opt_enable_late_materialization=1; select (select t.value from test.t where t.id = t1.id order by t.value limit 1) xx from test.t1 order by t1.value limit 5;
++------+
+| xx   |
++------+
+|    5 |
++------+
+mysql> set @@tidb_allow_mpp=1; set @@tidb_opt_enable_late_materialization=0; select (select t.value from test.t where t.id = t1.id order by t.value limit 1) xx from test.t1 order by t1.value limit 5;
++------+
+| xx   |
++------+
+|    5 |
++------+
+
+# BatchCop
+mysql> set @@tidb_allow_mpp=0; set @@tidb_allow_tiflash_cop = 1; set @@tidb_allow_batch_cop = 2; set @@tidb_opt_enable_late_materialization=1; select (select t.value from test.t where t.id = t1.id order by t.value limit 1) xx from test.t1 order by t1.value limit 5;
++------+
+| xx   |
++------+
+|    5 |
++------+
+mysql> set @@tidb_allow_mpp=0; set @@tidb_allow_tiflash_cop = 1; set @@tidb_allow_batch_cop = 2; set @@tidb_opt_enable_late_materialization=0; select (select t.value from test.t where t.id = t1.id order by t.value limit 1) xx from test.t1 order by t1.value limit 5;
++------+
+| xx   |
++------+
+|    5 |
++------+
+
+# Cop
+mysql> set @@tidb_allow_mpp=0; set @@tidb_allow_tiflash_cop = 1; set @@tidb_allow_batch_cop = 0; set @@tidb_opt_enable_late_materialization=1; select (select t.value from test.t where t.id = t1.id order by t.value limit 1) xx from test.t1 order by t1.value limit 5;
++------+
+| xx   |
++------+
+|    5 |
++------+
+mysql> set @@tidb_allow_mpp=0; set @@tidb_allow_tiflash_cop = 1; set @@tidb_allow_batch_cop = 0; set @@tidb_opt_enable_late_materialization=0; select (select t.value from test.t where t.id = t1.id order by t.value limit 1) xx from test.t1 order by t1.value limit 5;
++------+
+| xx   |
++------+
+|    5 |
++------+
+
+# Clean up.
+mysql> drop table if exists test.t;
+mysql> drop table if exists test.t1;