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654 lines
18 KiB
654 lines
18 KiB
// Copyright 2015 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 expression
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import (
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"sync/atomic"
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"testing"
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"time"
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. "github.com/pingcap/check"
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"github.com/pingcap/parser"
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"github.com/pingcap/parser/ast"
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"github.com/pingcap/parser/charset"
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"github.com/pingcap/parser/mysql"
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"github.com/pingcap/tidb/sessionctx"
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"github.com/pingcap/tidb/types"
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"github.com/pingcap/tidb/util/chunk"
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"github.com/pingcap/tidb/util/mock"
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"github.com/pingcap/tidb/util/testleak"
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"github.com/pingcap/tidb/util/testutil"
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)
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var _ = SerialSuites(&testEvaluatorSerialSuites{})
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var _ = Suite(&testEvaluatorSuite{})
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var _ = Suite(&testVectorizeSuite1{})
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var _ = Suite(&testVectorizeSuite2{})
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func TestT(t *testing.T) {
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testleak.BeforeTest()
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defer testleak.AfterTestT(t)()
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CustomVerboseFlag = true
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*CustomParallelSuiteFlag = true
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TestingT(t)
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}
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type testEvaluatorSuiteBase struct {
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*parser.Parser
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ctx sessionctx.Context
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}
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type testEvaluatorSuite struct {
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testEvaluatorSuiteBase
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}
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type testVectorizeSuite1 struct {
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testEvaluatorSuiteBase
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}
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type testVectorizeSuite2 struct {
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testEvaluatorSuiteBase
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}
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type testEvaluatorSerialSuites struct {
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testEvaluatorSuiteBase
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}
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func (s *testEvaluatorSuiteBase) SetUpSuite(c *C) {
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s.Parser = parser.New()
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}
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func (s *testEvaluatorSuiteBase) TearDownSuite(c *C) {
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}
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func (s *testEvaluatorSuiteBase) SetUpTest(c *C) {
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s.ctx = mock.NewContext()
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s.ctx.GetSessionVars().StmtCtx.TimeZone = time.Local
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sc := s.ctx.GetSessionVars().StmtCtx
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sc.TruncateAsWarning = true
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s.ctx.GetSessionVars().SetSystemVar("max_allowed_packet", "67108864")
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s.ctx.GetSessionVars().PlanColumnID = 0
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}
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func (s *testEvaluatorSuiteBase) TearDownTest(c *C) {
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s.ctx.GetSessionVars().StmtCtx.SetWarnings(nil)
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}
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func (s *testEvaluatorSuiteBase) kindToFieldType(kind byte) types.FieldType {
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ft := types.FieldType{}
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switch kind {
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case types.KindNull:
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ft.Tp = mysql.TypeNull
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case types.KindInt64:
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ft.Tp = mysql.TypeLonglong
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case types.KindUint64:
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ft.Tp = mysql.TypeLonglong
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ft.Flag |= mysql.UnsignedFlag
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case types.KindMinNotNull:
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ft.Tp = mysql.TypeLonglong
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case types.KindMaxValue:
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ft.Tp = mysql.TypeLonglong
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case types.KindFloat32:
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ft.Tp = mysql.TypeDouble
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case types.KindFloat64:
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ft.Tp = mysql.TypeDouble
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case types.KindString:
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ft.Tp = mysql.TypeVarString
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case types.KindBytes:
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ft.Tp = mysql.TypeVarString
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case types.KindMysqlEnum:
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ft.Tp = mysql.TypeEnum
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case types.KindMysqlSet:
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ft.Tp = mysql.TypeSet
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case types.KindInterface:
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ft.Tp = mysql.TypeVarString
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case types.KindMysqlDecimal:
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ft.Tp = mysql.TypeNewDecimal
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case types.KindMysqlDuration:
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ft.Tp = mysql.TypeDuration
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case types.KindMysqlTime:
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ft.Tp = mysql.TypeDatetime
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case types.KindBinaryLiteral:
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ft.Tp = mysql.TypeVarString
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ft.Charset = charset.CharsetBin
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ft.Collate = charset.CollationBin
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case types.KindMysqlBit:
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ft.Tp = mysql.TypeBit
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case types.KindMysqlJSON:
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ft.Tp = mysql.TypeJSON
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}
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return ft
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}
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func (s *testEvaluatorSuiteBase) datumsToConstants(datums []types.Datum) []Expression {
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constants := make([]Expression, 0, len(datums))
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for _, d := range datums {
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ft := s.kindToFieldType(d.Kind())
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if types.IsNonBinaryStr(&ft) {
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ft.Collate = d.Collation()
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}
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ft.Flen, ft.Decimal = types.UnspecifiedLength, types.UnspecifiedLength
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constants = append(constants, &Constant{Value: d, RetType: &ft})
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}
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return constants
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}
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func (s *testEvaluatorSuiteBase) primitiveValsToConstants(args []interface{}) []Expression {
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cons := s.datumsToConstants(types.MakeDatums(args...))
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char, col := s.ctx.GetSessionVars().GetCharsetInfo()
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for i, arg := range args {
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types.DefaultTypeForValue(arg, cons[i].GetType(), char, col)
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}
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return cons
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}
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func (s *testEvaluatorSuite) TestSleep(c *C) {
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ctx := mock.NewContext()
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sessVars := ctx.GetSessionVars()
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fc := funcs[ast.Sleep]
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// non-strict model
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sessVars.StrictSQLMode = false
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d := make([]types.Datum, 1)
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f, err := fc.getFunction(ctx, s.datumsToConstants(d))
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c.Assert(err, IsNil)
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ret, isNull, err := f.evalInt(chunk.Row{})
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c.Assert(err, IsNil)
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c.Assert(isNull, IsFalse)
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c.Assert(ret, Equals, int64(0))
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d[0].SetInt64(-1)
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f, err = fc.getFunction(ctx, s.datumsToConstants(d))
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c.Assert(err, IsNil)
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ret, isNull, err = f.evalInt(chunk.Row{})
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c.Assert(err, IsNil)
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c.Assert(isNull, IsFalse)
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c.Assert(ret, Equals, int64(0))
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// for error case under the strict model
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sessVars.StrictSQLMode = true
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d[0].SetNull()
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_, err = fc.getFunction(ctx, s.datumsToConstants(d))
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c.Assert(err, IsNil)
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_, isNull, err = f.evalInt(chunk.Row{})
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c.Assert(err, NotNil)
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c.Assert(isNull, IsFalse)
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d[0].SetFloat64(-2.5)
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_, err = fc.getFunction(ctx, s.datumsToConstants(d))
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c.Assert(err, IsNil)
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_, isNull, err = f.evalInt(chunk.Row{})
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c.Assert(err, NotNil)
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c.Assert(isNull, IsFalse)
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// strict model
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d[0].SetFloat64(0.5)
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start := time.Now()
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f, err = fc.getFunction(ctx, s.datumsToConstants(d))
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c.Assert(err, IsNil)
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ret, isNull, err = f.evalInt(chunk.Row{})
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c.Assert(err, IsNil)
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c.Assert(isNull, IsFalse)
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c.Assert(ret, Equals, int64(0))
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sub := time.Since(start)
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c.Assert(sub.Nanoseconds(), GreaterEqual, int64(0.5*1e9))
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d[0].SetFloat64(3)
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f, err = fc.getFunction(ctx, s.datumsToConstants(d))
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c.Assert(err, IsNil)
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start = time.Now()
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go func() {
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time.Sleep(1 * time.Second)
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atomic.CompareAndSwapUint32(&ctx.GetSessionVars().Killed, 0, 1)
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}()
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ret, isNull, err = f.evalInt(chunk.Row{})
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sub = time.Since(start)
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c.Assert(err, IsNil)
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c.Assert(isNull, IsFalse)
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c.Assert(ret, Equals, int64(1))
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c.Assert(sub.Nanoseconds(), LessEqual, int64(2*1e9))
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c.Assert(sub.Nanoseconds(), GreaterEqual, int64(1*1e9))
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}
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func (s *testEvaluatorSuite) TestBinopComparison(c *C) {
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tbl := []struct {
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lhs interface{}
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op string
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rhs interface{}
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result int64 // 0 for false, 1 for true
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}{
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// test EQ
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{1, ast.EQ, 2, 0},
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{false, ast.EQ, false, 1},
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{false, ast.EQ, true, 0},
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{true, ast.EQ, true, 1},
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{true, ast.EQ, false, 0},
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{"1", ast.EQ, true, 1},
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{"1", ast.EQ, false, 0},
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// test NEQ
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{1, ast.NE, 2, 1},
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{false, ast.NE, false, 0},
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{false, ast.NE, true, 1},
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{true, ast.NE, true, 0},
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{"1", ast.NE, true, 0},
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{"1", ast.NE, false, 1},
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// test GT, GE
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{1, ast.GT, 0, 1},
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{1, ast.GT, 1, 0},
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{1, ast.GE, 1, 1},
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{3.14, ast.GT, 3, 1},
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{3.14, ast.GE, 3.14, 1},
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// test LT, LE
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{1, ast.LT, 2, 1},
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{1, ast.LT, 1, 0},
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{1, ast.LE, 1, 1},
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}
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for _, t := range tbl {
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fc := funcs[t.op]
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f, err := fc.getFunction(s.ctx, s.datumsToConstants(types.MakeDatums(t.lhs, t.rhs)))
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c.Assert(err, IsNil)
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v, err := evalBuiltinFunc(f, chunk.Row{})
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c.Assert(err, IsNil)
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val, err := v.ToBool(s.ctx.GetSessionVars().StmtCtx)
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c.Assert(err, IsNil)
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c.Assert(val, Equals, t.result)
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}
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// test nil
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nilTbl := []struct {
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lhs interface{}
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op string
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rhs interface{}
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}{
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{nil, ast.EQ, nil},
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{nil, ast.EQ, 1},
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{nil, ast.NE, nil},
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{nil, ast.NE, 1},
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{nil, ast.LT, nil},
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{nil, ast.LT, 1},
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{nil, ast.LE, nil},
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{nil, ast.LE, 1},
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{nil, ast.GT, nil},
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{nil, ast.GT, 1},
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{nil, ast.GE, nil},
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{nil, ast.GE, 1},
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}
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for _, t := range nilTbl {
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fc := funcs[t.op]
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f, err := fc.getFunction(s.ctx, s.datumsToConstants(types.MakeDatums(t.lhs, t.rhs)))
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c.Assert(err, IsNil)
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v, err := evalBuiltinFunc(f, chunk.Row{})
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c.Assert(err, IsNil)
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c.Assert(v.Kind(), Equals, types.KindNull)
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}
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}
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func (s *testEvaluatorSuite) TestBinopLogic(c *C) {
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tbl := []struct {
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lhs interface{}
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op string
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rhs interface{}
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ret interface{}
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}{
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{nil, ast.LogicAnd, 1, nil},
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{nil, ast.LogicAnd, 0, 0},
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{nil, ast.LogicOr, 1, 1},
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{nil, ast.LogicOr, 0, nil},
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{nil, ast.LogicXor, 1, nil},
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{nil, ast.LogicXor, 0, nil},
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{1, ast.LogicAnd, 0, 0},
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{1, ast.LogicAnd, 1, 1},
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{1, ast.LogicOr, 0, 1},
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{1, ast.LogicOr, 1, 1},
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{0, ast.LogicOr, 0, 0},
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{1, ast.LogicXor, 0, 1},
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{1, ast.LogicXor, 1, 0},
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{0, ast.LogicXor, 0, 0},
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{0, ast.LogicXor, 1, 1},
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}
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for _, t := range tbl {
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fc := funcs[t.op]
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f, err := fc.getFunction(s.ctx, s.datumsToConstants(types.MakeDatums(t.lhs, t.rhs)))
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c.Assert(err, IsNil)
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v, err := evalBuiltinFunc(f, chunk.Row{})
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c.Assert(err, IsNil)
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switch x := t.ret.(type) {
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case nil:
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c.Assert(v.Kind(), Equals, types.KindNull)
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case int:
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c.Assert(v, testutil.DatumEquals, types.NewDatum(int64(x)))
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}
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}
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}
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func (s *testEvaluatorSuite) TestBinopBitop(c *C) {
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tbl := []struct {
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lhs interface{}
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op string
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rhs interface{}
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ret interface{}
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}{
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{1, ast.And, 1, 1},
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{1, ast.Or, 1, 1},
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{1, ast.Xor, 1, 0},
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{1, ast.LeftShift, 1, 2},
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{2, ast.RightShift, 1, 1},
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{nil, ast.And, 1, nil},
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{1, ast.And, nil, nil},
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{nil, ast.Or, 1, nil},
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{nil, ast.Xor, 1, nil},
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{nil, ast.LeftShift, 1, nil},
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{nil, ast.RightShift, 1, nil},
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}
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for _, t := range tbl {
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fc := funcs[t.op]
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f, err := fc.getFunction(s.ctx, s.datumsToConstants(types.MakeDatums(t.lhs, t.rhs)))
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c.Assert(err, IsNil)
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v, err := evalBuiltinFunc(f, chunk.Row{})
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c.Assert(err, IsNil)
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switch x := t.ret.(type) {
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case nil:
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c.Assert(v.Kind(), Equals, types.KindNull)
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case int:
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c.Assert(v, testutil.DatumEquals, types.NewDatum(uint64(x)))
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}
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}
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}
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func (s *testEvaluatorSuite) TestBinopNumeric(c *C) {
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tbl := []struct {
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lhs interface{}
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op string
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rhs interface{}
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ret interface{}
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}{
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// plus
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{1, ast.Plus, 1, 2},
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{1, ast.Plus, uint64(1), 2},
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{1, ast.Plus, "1", 2},
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{1, ast.Plus, types.NewDecFromInt(1), 2},
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{uint64(1), ast.Plus, 1, 2},
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{uint64(1), ast.Plus, uint64(1), 2},
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{uint64(1), ast.Plus, -1, 0},
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{1, ast.Plus, []byte("1"), 2},
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{1, ast.Plus, types.NewBinaryLiteralFromUint(1, -1), 2},
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{1, ast.Plus, types.Enum{Name: "a", Value: 1}, 2},
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{1, ast.Plus, types.Set{Name: "a", Value: 1}, 2},
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// minus
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{1, ast.Minus, 1, 0},
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{1, ast.Minus, uint64(1), 0},
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{1, ast.Minus, float64(1), 0},
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{1, ast.Minus, types.NewDecFromInt(1), 0},
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{uint64(1), ast.Minus, 1, 0},
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{uint64(1), ast.Minus, uint64(1), 0},
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{types.NewDecFromInt(1), ast.Minus, 1, 0},
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{"1", ast.Minus, []byte("1"), 0},
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// mul
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{1, ast.Mul, 1, 1},
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{1, ast.Mul, uint64(1), 1},
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{1, ast.Mul, float64(1), 1},
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{1, ast.Mul, types.NewDecFromInt(1), 1},
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{uint64(1), ast.Mul, 1, 1},
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{uint64(1), ast.Mul, uint64(1), 1},
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{types.NewTime(types.FromDate(0, 0, 0, 0, 0, 0, 0), 0, 0), ast.Mul, 0, 0},
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{types.ZeroDuration, ast.Mul, 0, 0},
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{types.NewTime(types.FromGoTime(time.Now()), mysql.TypeDatetime, 0), ast.Mul, 0, 0},
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{types.NewTime(types.FromGoTime(time.Now()), mysql.TypeDatetime, 6), ast.Mul, 0, 0},
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{types.Duration{Duration: 100000000, Fsp: 6}, ast.Mul, 0, 0},
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// div
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{1, ast.Div, float64(1), 1},
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{1, ast.Div, float64(0), nil},
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{1, ast.Div, 2, 0.5},
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{1, ast.Div, 0, nil},
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// int div
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{1, ast.IntDiv, 2, 0},
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{1, ast.IntDiv, uint64(2), 0},
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{1, ast.IntDiv, 0, nil},
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{1, ast.IntDiv, uint64(0), nil},
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{uint64(1), ast.IntDiv, 2, 0},
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{uint64(1), ast.IntDiv, uint64(2), 0},
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{uint64(1), ast.IntDiv, 0, nil},
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{uint64(1), ast.IntDiv, uint64(0), nil},
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{1.0, ast.IntDiv, 2.0, 0},
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// mod
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{10, ast.Mod, 2, 0},
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{10, ast.Mod, uint64(2), 0},
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{10, ast.Mod, 0, nil},
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{10, ast.Mod, uint64(0), nil},
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{-10, ast.Mod, uint64(2), 0},
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{uint64(10), ast.Mod, 2, 0},
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{uint64(10), ast.Mod, uint64(2), 0},
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{uint64(10), ast.Mod, 0, nil},
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{uint64(10), ast.Mod, uint64(0), nil},
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{uint64(10), ast.Mod, -2, 0},
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{float64(10), ast.Mod, 2, 0},
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{float64(10), ast.Mod, 0, nil},
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{types.NewDecFromInt(10), ast.Mod, 2, 0},
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{types.NewDecFromInt(10), ast.Mod, 0, nil},
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}
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for _, t := range tbl {
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fc := funcs[t.op]
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f, err := fc.getFunction(s.ctx, s.datumsToConstants(types.MakeDatums(t.lhs, t.rhs)))
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c.Assert(err, IsNil)
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v, err := evalBuiltinFunc(f, chunk.Row{})
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c.Assert(err, IsNil)
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switch v.Kind() {
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case types.KindNull:
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c.Assert(t.ret, IsNil)
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default:
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// we use float64 as the result type check for all.
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sc := s.ctx.GetSessionVars().StmtCtx
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f, err := v.ToFloat64(sc)
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c.Assert(err, IsNil)
|
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d := types.NewDatum(t.ret)
|
|
r, err := d.ToFloat64(sc)
|
|
c.Assert(err, IsNil)
|
|
c.Assert(r, Equals, f)
|
|
}
|
|
}
|
|
|
|
testcases := []struct {
|
|
lhs interface{}
|
|
op string
|
|
rhs interface{}
|
|
}{
|
|
// div
|
|
{1, ast.Div, float64(0)},
|
|
{1, ast.Div, 0},
|
|
// int div
|
|
{1, ast.IntDiv, 0},
|
|
{1, ast.IntDiv, uint64(0)},
|
|
{uint64(1), ast.IntDiv, 0},
|
|
{uint64(1), ast.IntDiv, uint64(0)},
|
|
// mod
|
|
{10, ast.Mod, 0},
|
|
{10, ast.Mod, uint64(0)},
|
|
{uint64(10), ast.Mod, 0},
|
|
{uint64(10), ast.Mod, uint64(0)},
|
|
{float64(10), ast.Mod, 0},
|
|
{types.NewDecFromInt(10), ast.Mod, 0},
|
|
}
|
|
|
|
oldInSelectStmt := s.ctx.GetSessionVars().StmtCtx.InSelectStmt
|
|
s.ctx.GetSessionVars().StmtCtx.InSelectStmt = false
|
|
oldSQLMode := s.ctx.GetSessionVars().SQLMode
|
|
s.ctx.GetSessionVars().SQLMode |= mysql.ModeErrorForDivisionByZero
|
|
oldInInsertStmt := s.ctx.GetSessionVars().StmtCtx.InInsertStmt
|
|
s.ctx.GetSessionVars().StmtCtx.InInsertStmt = true
|
|
for _, t := range testcases {
|
|
fc := funcs[t.op]
|
|
f, err := fc.getFunction(s.ctx, s.datumsToConstants(types.MakeDatums(t.lhs, t.rhs)))
|
|
c.Assert(err, IsNil)
|
|
_, err = evalBuiltinFunc(f, chunk.Row{})
|
|
c.Assert(err, NotNil)
|
|
}
|
|
|
|
oldDividedByZeroAsWarning := s.ctx.GetSessionVars().StmtCtx.DividedByZeroAsWarning
|
|
s.ctx.GetSessionVars().StmtCtx.DividedByZeroAsWarning = true
|
|
for _, t := range testcases {
|
|
fc := funcs[t.op]
|
|
f, err := fc.getFunction(s.ctx, s.datumsToConstants(types.MakeDatums(t.lhs, t.rhs)))
|
|
c.Assert(err, IsNil)
|
|
v, err := evalBuiltinFunc(f, chunk.Row{})
|
|
c.Assert(err, IsNil)
|
|
c.Assert(v.Kind(), Equals, types.KindNull)
|
|
}
|
|
|
|
s.ctx.GetSessionVars().StmtCtx.InSelectStmt = oldInSelectStmt
|
|
s.ctx.GetSessionVars().SQLMode = oldSQLMode
|
|
s.ctx.GetSessionVars().StmtCtx.InInsertStmt = oldInInsertStmt
|
|
s.ctx.GetSessionVars().StmtCtx.DividedByZeroAsWarning = oldDividedByZeroAsWarning
|
|
}
|
|
|
|
func (s *testEvaluatorSuite) TestExtract(c *C) {
|
|
str := "2011-11-11 10:10:10.123456"
|
|
tbl := []struct {
|
|
Unit string
|
|
Expect int64
|
|
}{
|
|
{"MICROSECOND", 123456},
|
|
{"SECOND", 10},
|
|
{"MINUTE", 10},
|
|
{"HOUR", 10},
|
|
{"DAY", 11},
|
|
{"WEEK", 45},
|
|
{"MONTH", 11},
|
|
{"QUARTER", 4},
|
|
{"YEAR", 2011},
|
|
{"SECOND_MICROSECOND", 10123456},
|
|
{"MINUTE_MICROSECOND", 1010123456},
|
|
{"MINUTE_SECOND", 1010},
|
|
{"HOUR_MICROSECOND", 101010123456},
|
|
{"HOUR_SECOND", 101010},
|
|
{"HOUR_MINUTE", 1010},
|
|
{"DAY_MICROSECOND", 11101010123456},
|
|
{"DAY_SECOND", 11101010},
|
|
{"DAY_MINUTE", 111010},
|
|
{"DAY_HOUR", 1110},
|
|
{"YEAR_MONTH", 201111},
|
|
}
|
|
for _, t := range tbl {
|
|
fc := funcs[ast.Extract]
|
|
f, err := fc.getFunction(s.ctx, s.datumsToConstants(types.MakeDatums(t.Unit, str)))
|
|
c.Assert(err, IsNil)
|
|
v, err := evalBuiltinFunc(f, chunk.Row{})
|
|
c.Assert(err, IsNil)
|
|
c.Assert(v, testutil.DatumEquals, types.NewDatum(t.Expect))
|
|
}
|
|
|
|
// Test nil
|
|
fc := funcs[ast.Extract]
|
|
f, err := fc.getFunction(s.ctx, s.datumsToConstants(types.MakeDatums("SECOND", nil)))
|
|
c.Assert(err, IsNil)
|
|
v, err := evalBuiltinFunc(f, chunk.Row{})
|
|
c.Assert(err, IsNil)
|
|
c.Assert(v.Kind(), Equals, types.KindNull)
|
|
}
|
|
|
|
func (s *testEvaluatorSuite) TestUnaryOp(c *C) {
|
|
tbl := []struct {
|
|
arg interface{}
|
|
op string
|
|
result interface{}
|
|
}{
|
|
// test NOT.
|
|
{1, ast.UnaryNot, int64(0)},
|
|
{0, ast.UnaryNot, int64(1)},
|
|
{nil, ast.UnaryNot, nil},
|
|
{types.NewBinaryLiteralFromUint(0, -1), ast.UnaryNot, int64(1)},
|
|
{types.NewBinaryLiteralFromUint(1, -1), ast.UnaryNot, int64(0)},
|
|
{types.Enum{Name: "a", Value: 1}, ast.UnaryNot, int64(0)},
|
|
{types.Set{Name: "a", Value: 1}, ast.UnaryNot, int64(0)},
|
|
|
|
// test BitNeg.
|
|
{nil, ast.BitNeg, nil},
|
|
{-1, ast.BitNeg, uint64(0)},
|
|
|
|
// test Minus.
|
|
{nil, ast.UnaryMinus, nil},
|
|
{float64(1.0), ast.UnaryMinus, float64(-1.0)},
|
|
{int64(1), ast.UnaryMinus, int64(-1)},
|
|
{int64(1), ast.UnaryMinus, int64(-1)},
|
|
{uint64(1), ast.UnaryMinus, -int64(1)},
|
|
{"1.0", ast.UnaryMinus, -1.0},
|
|
{[]byte("1.0"), ast.UnaryMinus, -1.0},
|
|
{types.NewBinaryLiteralFromUint(1, -1), ast.UnaryMinus, -1.0},
|
|
{true, ast.UnaryMinus, int64(-1)},
|
|
{false, ast.UnaryMinus, int64(0)},
|
|
{types.Enum{Name: "a", Value: 1}, ast.UnaryMinus, -1.0},
|
|
{types.Set{Name: "a", Value: 1}, ast.UnaryMinus, -1.0},
|
|
}
|
|
for i, t := range tbl {
|
|
fc := funcs[t.op]
|
|
f, err := fc.getFunction(s.ctx, s.datumsToConstants(types.MakeDatums(t.arg)))
|
|
c.Assert(err, IsNil)
|
|
result, err := evalBuiltinFunc(f, chunk.Row{})
|
|
c.Assert(err, IsNil)
|
|
c.Assert(result, testutil.DatumEquals, types.NewDatum(t.result), Commentf("%d", i))
|
|
}
|
|
|
|
tbl = []struct {
|
|
arg interface{}
|
|
op string
|
|
result interface{}
|
|
}{
|
|
{types.NewDecFromInt(1), ast.UnaryMinus, types.NewDecFromInt(-1)},
|
|
{types.ZeroDuration, ast.UnaryMinus, new(types.MyDecimal)},
|
|
{types.NewTime(types.FromGoTime(time.Date(2009, time.November, 10, 23, 0, 0, 0, time.UTC)), mysql.TypeDatetime, 0), ast.UnaryMinus, types.NewDecFromInt(-20091110230000)},
|
|
}
|
|
|
|
for _, t := range tbl {
|
|
fc := funcs[t.op]
|
|
f, err := fc.getFunction(s.ctx, s.datumsToConstants(types.MakeDatums(t.arg)))
|
|
c.Assert(err, IsNil)
|
|
c.Assert(f, NotNil)
|
|
result, err := evalBuiltinFunc(f, chunk.Row{})
|
|
c.Assert(err, IsNil)
|
|
|
|
expect := types.NewDatum(t.result)
|
|
ret, err := result.CompareDatum(s.ctx.GetSessionVars().StmtCtx, &expect)
|
|
c.Assert(err, IsNil)
|
|
c.Assert(ret, Equals, 0, Commentf("%v %s", t.arg, t.op))
|
|
}
|
|
}
|
|
|
|
func (s *testEvaluatorSuite) TestMod(c *C) {
|
|
fc := funcs[ast.Mod]
|
|
f, err := fc.getFunction(s.ctx, s.datumsToConstants(types.MakeDatums(234, 10)))
|
|
c.Assert(err, IsNil)
|
|
r, err := evalBuiltinFunc(f, chunk.Row{})
|
|
c.Assert(err, IsNil)
|
|
c.Assert(r, testutil.DatumEquals, types.NewIntDatum(4))
|
|
f, err = fc.getFunction(s.ctx, s.datumsToConstants(types.MakeDatums(29, 9)))
|
|
c.Assert(err, IsNil)
|
|
r, err = evalBuiltinFunc(f, chunk.Row{})
|
|
c.Assert(err, IsNil)
|
|
c.Assert(r, testutil.DatumEquals, types.NewIntDatum(2))
|
|
f, err = fc.getFunction(s.ctx, s.datumsToConstants(types.MakeDatums(34.5, 3)))
|
|
c.Assert(err, IsNil)
|
|
r, err = evalBuiltinFunc(f, chunk.Row{})
|
|
c.Assert(err, IsNil)
|
|
c.Assert(r, testutil.DatumEquals, types.NewDatum(1.5))
|
|
}
|
|
|