64 lines
3.1 KiB
Go
64 lines
3.1 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) TestDirtyTransaction(c *C) {
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defer func() {
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s.cleanEnv(c)
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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 t")
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tk.MustExec("create table t (a int primary key, b int, index idx_b (b));")
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tk.MustExec("insert t value (2, 3), (4, 8), (6, 8)")
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tk.MustExec("begin")
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tk.MustQuery("select * from t").Check(testkit.Rows("2 3", "4 8", "6 8"))
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tk.MustExec("insert t values (1, 5), (3, 4), (7, 6)")
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tk.MustQuery("select * from information_schema.columns")
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tk.MustQuery("select * from t").Check(testkit.Rows("1 5", "2 3", "3 4", "4 8", "6 8", "7 6"))
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tk.MustQuery("select * from t where a = 1").Check(testkit.Rows("1 5"))
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tk.MustQuery("select * from t order by a desc").Check(testkit.Rows("7 6", "6 8", "4 8", "3 4", "2 3", "1 5"))
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tk.MustQuery("select * from t order by b, a").Check(testkit.Rows("2 3", "3 4", "1 5", "7 6", "4 8", "6 8"))
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tk.MustQuery("select * from t order by b desc, a desc").Check(testkit.Rows("6 8", "4 8", "7 6", "1 5", "3 4", "2 3"))
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tk.MustQuery("select b from t where b = 8 order by b desc").Check(testkit.Rows("8", "8"))
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// Delete a snapshot row and a dirty row.
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tk.MustExec("delete from t where a = 2 or a = 3")
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tk.MustQuery("select * from t").Check(testkit.Rows("1 5", "4 8", "6 8", "7 6"))
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tk.MustQuery("select * from t order by a desc").Check(testkit.Rows("7 6", "6 8", "4 8", "1 5"))
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tk.MustQuery("select * from t order by b, a").Check(testkit.Rows("1 5", "7 6", "4 8", "6 8"))
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tk.MustQuery("select * from t order by b desc, a desc").Check(testkit.Rows("6 8", "4 8", "7 6", "1 5"))
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// Add deleted row back.
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tk.MustExec("insert t values (2, 3), (3, 4)")
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tk.MustQuery("select * from t").Check(testkit.Rows("1 5", "2 3", "3 4", "4 8", "6 8", "7 6"))
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tk.MustQuery("select * from t order by a desc").Check(testkit.Rows("7 6", "6 8", "4 8", "3 4", "2 3", "1 5"))
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tk.MustQuery("select * from t order by b, a").Check(testkit.Rows("2 3", "3 4", "1 5", "7 6", "4 8", "6 8"))
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tk.MustQuery("select * from t order by b desc, a desc").Check(testkit.Rows("6 8", "4 8", "7 6", "1 5", "3 4", "2 3"))
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// Truncate Table
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tk.MustExec("truncate table t")
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tk.MustQuery("select * from t").Check(testkit.Rows())
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tk.MustExec("insert t values (1, 2)")
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tk.MustQuery("select * from t").Check(testkit.Rows("1 2"))
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tk.MustExec("truncate table t")
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tk.MustExec("insert t values (3, 4)")
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tk.MustQuery("select * from t").Check(testkit.Rows("3 4"))
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tk.Exec("abort")
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}
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