51 lines
2.1 KiB
Go
51 lines
2.1 KiB
Go
// Copyright 2017 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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"fmt"
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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) TestAnalyzeTable(c *C) {
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defer func() {
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testleak.AfterTest(c)()
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}()
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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")
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tk.MustExec("create table t1 (a int)")
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tk.MustExec("create index ind_a on t1 (a)")
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tk.MustExec("insert into t1 (a) values (1)")
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result := tk.MustQuery("explain select * from t1 where t1.a = 1")
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rowStr := fmt.Sprintf("%s", result.Rows())
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c.Check(rowStr, Equals, "[[IndexScan_7 cop table:t1, index:a, range:[1,1], out of order:true 10] [IndexReader_8 root index:IndexScan_7 10]]")
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tk.MustExec("analyze table t1")
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result = tk.MustQuery("explain select * from t1 where t1.a = 1")
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rowStr = fmt.Sprintf("%s", result.Rows())
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c.Check(rowStr, Equals, "[[TableScan_4 Selection_5 cop table:t1, range:(-inf,+inf), keep order:false 1] [Selection_5 TableScan_4 cop eq(test.t1.a, 1) 1] [TableReader_6 root data:Selection_5 1]]")
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tk.MustExec("drop table if exists t1")
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tk.MustExec("create table t1 (a int)")
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tk.MustExec("create index ind_a on t1 (a)")
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tk.MustExec("insert into t1 (a) values (1)")
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tk.MustExec("analyze table t1 index ind_a")
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result = tk.MustQuery("explain select * from t1 where t1.a = 1")
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rowStr = fmt.Sprintf("%s", result.Rows())
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c.Check(rowStr, Equals, "[[TableScan_4 Selection_5 cop table:t1, range:(-inf,+inf), keep order:false 1] [Selection_5 TableScan_4 cop eq(test.t1.a, 1) 1] [TableReader_6 root data:Selection_5 1]]")
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}
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