08034540f0
* *: add leak test and tiny clean up * *: unify test format and add leak test Conflicts: store/localstore/compactor_test.go mysql/error_test.go *: add leak test
95 lines
2.5 KiB
Go
95 lines
2.5 KiB
Go
// Copyright 2016 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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"github.com/pingcap/tidb/util/testleak"
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)
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func (s *testSuite) TestExplain(c *C) {
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defer testleak.AfterTest(c)()
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tk := testkit.NewTestKit(c, s.store)
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tk.MustExec("use test")
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tk.MustExec("drop table if exists t1, t2")
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tk.MustExec("create table t1 (c1 int primary key, c2 int, index c2 (c2))")
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tk.MustExec("create table t2 (c1 int unique, c2 int)")
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cases := []struct {
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sql string
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result []string
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}{
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{
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"select * from t1",
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[]string{
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"1 | SIMPLE | t1 | ALL | <nil> | <nil> | <nil> | <nil> | 0 | <nil>",
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},
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},
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{
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"select * from t1 order by c2",
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[]string{
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"1 | SIMPLE | t1 | index | c2 | c2 | <nil> | <nil> | 0 | <nil>",
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},
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},
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{
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"select * from t2 order by c2",
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[]string{
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"1 | SIMPLE | t2 | ALL | <nil> | <nil> | <nil> | <nil> | 0 | Using filesort",
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},
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},
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{
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"select * from t1 where t1.c1 > 0",
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[]string{
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"1 | SIMPLE | t1 | range | PRIMARY | PRIMARY | 8 | <nil> | 0 | Using where",
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},
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},
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{
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"select * from t1 where t1.c1 = 1",
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[]string{
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"1 | SIMPLE | t1 | const | PRIMARY | PRIMARY | 8 | <nil> | 0 | Using where",
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},
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},
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{
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"select * from t1 where t1.c2 = 1",
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[]string{
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"1 | SIMPLE | t1 | range | c2 | c2 | -1 | <nil> | 0 | Using where",
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},
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},
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{
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"select * from t1 left join t2 on t1.c2 = t2.c1 where t1.c1 > 1",
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[]string{
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"1 | SIMPLE | t1 | range | PRIMARY | PRIMARY | 8 | <nil> | 0 | Using where",
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"1 | SIMPLE | t2 | eq_ref | c1 | c1 | -1 | <nil> | 0 | Using where",
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},
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},
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{
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"update t1 set t1.c2 = 2 where t1.c1 = 1",
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[]string{
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"1 | SIMPLE | t1 | const | PRIMARY | PRIMARY | 8 | <nil> | 0 | Using where",
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},
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},
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{
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"delete from t1 where t1.c2 = 1",
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[]string{
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"1 | SIMPLE | t1 | range | c2 | c2 | -1 | <nil> | 0 | Using where",
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},
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},
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}
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for _, ca := range cases {
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result := tk.MustQuery("explain " + ca.sql)
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result.Check(testkit.RowsWithSep(" | ", ca.result...))
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}
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}
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