f3abdb027f
* planner,executor: implement PartitionTable executor for the three reader * add the new file * make fmt * forget to add the test file to git * fix a tiny bug * executor: handle partition table for index join * make golint happy
76 lines
3.4 KiB
Go
76 lines
3.4 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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. "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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tk.MustExec("set @try_new_partition_implementation = 1;")
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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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tk.MustExec("set @try_new_partition_implementation = 1;")
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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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