88 lines
3.1 KiB
Go
88 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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"fmt"
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"unicode/utf8"
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. "github.com/pingcap/check"
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"github.com/pingcap/tidb/table"
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"github.com/pingcap/tidb/terror"
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"github.com/pingcap/tidb/util/testkit"
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"github.com/pingcap/tidb/util/types"
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)
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const (
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strictModeSQL = "set sql_mode = 'STRICT_TRANS_TABLES'"
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nonStrictModeSQL = "set sql_mode = ''"
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)
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func (s *testSuite) TestStatementContext(c *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("create table sc (a int)")
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tk.MustExec("insert sc values (1), (2)")
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tk.MustExec(strictModeSQL)
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tk.MustQuery("select * from sc where a > cast(1.1 as decimal)").Check(testkit.Rows("2"))
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_, err := tk.Exec(`select * from sc where a > cast(1.1 as decimal);
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update sc set a = 4 where a > cast(1.1 as decimal)`)
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c.Check(terror.ErrorEqual(err, types.ErrTruncated), IsTrue)
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tk.MustExec(nonStrictModeSQL)
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tk.MustExec("update sc set a = 3 where a > cast(1.1 as decimal)")
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tk.MustQuery("select * from sc").Check(testkit.Rows("1", "3"))
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tk.MustExec(strictModeSQL)
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tk.MustExec("delete from sc")
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tk.MustExec("insert sc values ('1.8'+1)")
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tk.MustQuery("select * from sc").Check(testkit.Rows("3"))
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// Handle coprocessor flags, '1x' is an invalid int.
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// UPDATE and DELETE do select request first which is handled by coprocessor.
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// In strict mode we expect error.
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_, err = tk.Exec("update sc set a = 4 where a > '1x'")
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c.Assert(err, NotNil)
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_, err = tk.Exec("delete from sc where a < '1x'")
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c.Assert(err, NotNil)
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tk.MustQuery("select * from sc where a > '1x'").Check(testkit.Rows("3"))
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// Non-strict mode never returns error.
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tk.MustExec(nonStrictModeSQL)
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tk.MustExec("update sc set a = 4 where a > '1x'")
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tk.MustExec("delete from sc where a < '1x'")
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tk.MustQuery("select * from sc where a > '1x'").Check(testkit.Rows("4"))
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// Test invalid UTF8
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tk.MustExec("create table sc2 (a varchar(255))")
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// Insert an invalid UTF8
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tk.MustExec("insert sc2 values (unhex('4040ffff'))")
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c.Assert(tk.Se.GetSessionVars().StmtCtx.WarningCount(), Greater, uint16(0))
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tk.MustQuery("select * from sc2").Check(testkit.Rows("@@"))
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tk.MustExec(strictModeSQL)
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_, err = tk.Exec("insert sc2 values (unhex('4040ffff'))")
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c.Assert(err, NotNil)
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c.Assert(terror.ErrorEqual(err, table.ErrTruncateWrongValue), IsTrue)
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tk.MustExec("set @@tidb_skip_utf8_check = '1'")
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_, err = tk.Exec("insert sc2 values (unhex('4040ffff'))")
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c.Assert(err, IsNil)
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tk.MustQuery("select length(a) from sc2").Check(testkit.Rows("2", "4"))
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tk.MustExec("set @@tidb_skip_utf8_check = '0'")
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runeErrStr := string(utf8.RuneError)
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tk.MustExec(fmt.Sprintf("insert sc2 values ('%s')", runeErrStr))
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}
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