07453ff735
* planner: move partition union solver before predicates push down * fix Co-authored-by: ti-srebot <66930949+ti-srebot@users.noreply.github.com>
162 lines
8.2 KiB
Go
162 lines
8.2 KiB
Go
// Copyright 2020 PingCAP, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package executor_test
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import (
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"context"
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. "github.com/pingcap/check"
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"github.com/pingcap/tidb/util/testkit"
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)
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func (s *partitionTableSuite) TestFourReader(c *C) {
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tk := testkit.NewTestKitWithInit(c, s.store)
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tk.MustExec("drop table if exists pt")
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tk.MustExec(`create table pt (id int, c int, key i_id(id), key i_c(c)) partition by range (c) (
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partition p0 values less than (4),
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partition p1 values less than (7),
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partition p2 values less than (10))`)
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tk.MustExec("insert into pt values (0, 0), (2, 2), (4, 4), (6, 6), (7, 7), (9, 9), (null, null)")
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// Table reader
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tk.MustQuery("select * from pt").Sort().Check(testkit.Rows("0 0", "2 2", "4 4", "6 6", "7 7", "9 9", "<nil> <nil>"))
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// Table reader: table dual
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tk.MustQuery("select * from pt where c > 10").Check(testkit.Rows())
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// Table reader: one partition
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tk.MustQuery("select * from pt where c > 8").Check(testkit.Rows("9 9"))
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// Table reader: more than one partition
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tk.MustQuery("select * from pt where c < 2 or c >= 9").Check(testkit.Rows("0 0", "9 9"))
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// Index reader
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tk.MustQuery("select c from pt").Sort().Check(testkit.Rows("0", "2", "4", "6", "7", "9", "<nil>"))
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tk.MustQuery("select c from pt where c > 10").Check(testkit.Rows())
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tk.MustQuery("select c from pt where c > 8").Check(testkit.Rows("9"))
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tk.MustQuery("select c from pt where c < 2 or c >= 9").Check(testkit.Rows("0", "9"))
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// Index lookup
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tk.MustQuery("select /*+ use_index(pt, i_id) */ * from pt").Sort().Check(testkit.Rows("0 0", "2 2", "4 4", "6 6", "7 7", "9 9", "<nil> <nil>"))
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tk.MustQuery("select /*+ use_index(pt, i_id) */ * from pt where id < 4 and c > 10").Check(testkit.Rows())
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tk.MustQuery("select /*+ use_index(pt, i_id) */ * from pt where id < 10 and c > 8").Check(testkit.Rows("9 9"))
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tk.MustQuery("select /*+ use_index(pt, i_id) */ * from pt where id < 10 and c < 2 or c >= 9").Check(testkit.Rows("0 0", "9 9"))
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// Index Merge
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tk.MustExec("set @@tidb_enable_index_merge = 1")
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tk.MustQuery("select /*+ use_index(i_c, i_id) */ * from pt where id = 4 or c < 7").Check(testkit.Rows("0 0", "2 2", "4 4", "6 6"))
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}
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func (s *partitionTableSuite) TestPartitionIndexJoin(c *C) {
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tk := testkit.NewTestKitWithInit(c, s.store)
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tk.MustExec("drop table if exists p, t")
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tk.MustExec(`create table p (id int, c int, key i_id(id), key i_c(c)) partition by range (c) (
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partition p0 values less than (4),
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partition p1 values less than (7),
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partition p2 values less than (10))`)
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tk.MustExec("create table t (id int)")
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tk.MustExec("insert into p values (3,3), (4,4), (6,6), (9,9)")
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tk.MustExec("insert into t values (4), (9)")
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// Build indexLookUp in index join
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tk.MustQuery("select /*+ INL_JOIN(p) */ * from p, t where p.id = t.id").Sort().Check(testkit.Rows("4 4 4", "9 9 9"))
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// Build index reader in index join
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tk.MustQuery("select /*+ INL_JOIN(p) */ p.id from p, t where p.id = t.id").Check(testkit.Rows("4", "9"))
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}
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func (s *partitionTableSuite) TestPartitionUnionScanIndexJoin(c *C) {
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// For issue https://github.com/pingcap/tidb/issues/19152
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tk := testkit.NewTestKitWithInit(c, s.store)
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tk.MustExec("drop table if exists t1, t2")
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tk.MustExec("create table t1 (c_int int, c_str varchar(40), primary key (c_int)) partition by range (c_int) ( partition p0 values less than (10), partition p1 values less than maxvalue)")
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tk.MustExec("create table t2 (c_int int, c_str varchar(40), primary key (c_int, c_str)) partition by hash (c_int) partitions 4")
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tk.MustExec("insert into t1 values (10, 'interesting neumann')")
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tk.MustExec("insert into t2 select * from t1")
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tk.MustExec("begin")
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tk.MustExec("insert into t2 values (11, 'hopeful hoover');")
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tk.MustQuery("select /*+ INL_JOIN(t1,t2) */ * from t1 join t2 on t1.c_int = t2.c_int and t1.c_str = t2.c_str where t1.c_int in (10, 11)").Check(testkit.Rows("10 interesting neumann 10 interesting neumann"))
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tk.MustQuery("select /*+ INL_HASH_JOIN(t1,t2) */ * from t1 join t2 on t1.c_int = t2.c_int and t1.c_str = t2.c_str where t1.c_int in (10, 11)").Check(testkit.Rows("10 interesting neumann 10 interesting neumann"))
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tk.MustExec("commit")
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}
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func (s *partitionTableSuite) TestDAGTableID(c *C) {
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// This test checks the table ID in the DAG is changed to partition ID in the nextPartition function.
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tk := testkit.NewTestKitWithInit(c, s.store)
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tk.MustExec("use test")
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tk.MustExec("create table employees (id int,store_id int not null)partition by hash(store_id) partitions 4;")
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sql := "select * from test.employees"
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rs, err := tk.Exec(sql)
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c.Assert(err, IsNil)
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m := make(map[int64]struct{})
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ctx := context.WithValue(context.Background(), "nextPartitionUpdateDAGReq", m)
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tk.ResultSetToResultWithCtx(ctx, rs, Commentf("sql:%s, args:%v", sql))
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// Check table ID is changed to partition ID for each partition.
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c.Assert(m, HasLen, 4)
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}
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func (s *partitionTableSuite) TestPartitionReaderUnderApply(c *C) {
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tk := testkit.NewTestKitWithInit(c, s.store)
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tk.MustExec("use test")
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// For issue 19458.
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tk.MustExec("drop table if exists t")
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tk.MustExec("create table t(c_int int)")
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tk.MustExec("insert into t values(1), (2), (3), (4), (5), (6), (7), (8), (9)")
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tk.MustExec("DROP TABLE IF EXISTS `t1`")
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tk.MustExec(`CREATE TABLE t1 (
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c_int int NOT NULL,
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c_str varchar(40) NOT NULL,
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c_datetime datetime NOT NULL,
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c_timestamp timestamp NULL DEFAULT NULL,
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c_double double DEFAULT NULL,
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c_decimal decimal(12,6) DEFAULT NULL,
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PRIMARY KEY (c_int,c_str,c_datetime)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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PARTITION BY RANGE (c_int)
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(PARTITION p0 VALUES LESS THAN (2) ENGINE = InnoDB,
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PARTITION p1 VALUES LESS THAN (4) ENGINE = InnoDB,
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PARTITION p2 VALUES LESS THAN (6) ENGINE = InnoDB,
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PARTITION p3 VALUES LESS THAN (8) ENGINE = InnoDB,
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PARTITION p4 VALUES LESS THAN (10) ENGINE = InnoDB,
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PARTITION p5 VALUES LESS THAN (20) ENGINE = InnoDB,
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PARTITION p6 VALUES LESS THAN (50) ENGINE = InnoDB,
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PARTITION p7 VALUES LESS THAN (1000000000) ENGINE = InnoDB)`)
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tk.MustExec("INSERT INTO `t1` VALUES (19,'nifty feistel','2020-02-28 04:01:28','2020-02-04 06:11:57',32.430079,1.284000),(20,'objective snyder','2020-04-15 17:55:04','2020-05-30 22:04:13',37.690874,9.372000)")
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tk.MustExec("begin")
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tk.MustExec("insert into t1 values (22, 'wizardly saha', '2020-05-03 16:35:22', '2020-05-03 02:18:42', 96.534810, 0.088)")
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tk.MustQuery("select c_int from t where (select min(t1.c_int) from t1 where t1.c_int > t.c_int) > (select count(*) from t1 where t1.c_int > t.c_int) order by c_int").Check(testkit.Rows(
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"1", "2", "3", "4", "5", "6", "7", "8", "9"))
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tk.MustExec("rollback")
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// For issue 19450.
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tk.MustExec("drop table if exists t1, t2")
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tk.MustExec("create table t1 (c_int int, c_str varchar(40), c_decimal decimal(12, 6), primary key (c_int))")
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tk.MustExec("create table t2 (c_int int, c_str varchar(40), c_decimal decimal(12, 6), primary key (c_int)) partition by hash (c_int) partitions 4")
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tk.MustExec("insert into t1 values (1, 'romantic robinson', 4.436), (2, 'stoic chaplygin', 9.826), (3, 'vibrant shamir', 6.300), (4, 'hungry wilson', 4.900), (5, 'naughty swartz', 9.524)")
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tk.MustExec("insert into t2 select * from t1")
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tk.MustQuery("select * from t1 where c_decimal in (select c_decimal from t2 where t1.c_int = t2.c_int or t1.c_int = t2.c_int and t1.c_str > t2.c_str)").Check(testkit.Rows(
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"1 romantic robinson 4.436000",
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"2 stoic chaplygin 9.826000",
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"3 vibrant shamir 6.300000",
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"4 hungry wilson 4.900000",
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"5 naughty swartz 9.524000"))
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// For issue 19450 release-4.0
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tk.MustExec("set @try_old_partition_implementation = 1")
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tk.MustQuery("select * from t1 where c_decimal in (select c_decimal from t2 where t1.c_int = t2.c_int or t1.c_int = t2.c_int and t1.c_str > t2.c_str)").Check(testkit.Rows(
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"1 romantic robinson 4.436000",
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"2 stoic chaplygin 9.826000",
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"3 vibrant shamir 6.300000",
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"4 hungry wilson 4.900000",
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"5 naughty swartz 9.524000"))
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}
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