602 lines
16 KiB
Go
602 lines
16 KiB
Go
// 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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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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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/tidb/parser/ast"
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"github.com/pingcap/tidb/parser/charset"
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"github.com/pingcap/tidb/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/collate"
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"github.com/stretchr/testify/require"
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)
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func TestT(t *testing.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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func 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 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 := 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 primitiveValsToConstants(ctx sessionctx.Context, args []interface{}) []Expression {
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cons := datumsToConstants(types.MakeDatums(args...))
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char, col := 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 TestSleep(t *testing.T) {
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ctx := createContext(t)
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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, datumsToConstants(d))
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require.NoError(t, err)
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ret, isNull, err := f.evalInt(chunk.Row{})
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require.NoError(t, err)
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require.False(t, isNull)
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require.Equal(t, int64(0), ret)
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d[0].SetInt64(-1)
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f, err = fc.getFunction(ctx, datumsToConstants(d))
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require.NoError(t, err)
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ret, isNull, err = f.evalInt(chunk.Row{})
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require.NoError(t, err)
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require.False(t, isNull)
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require.Equal(t, int64(0), ret)
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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, datumsToConstants(d))
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require.NoError(t, err)
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_, isNull, err = f.evalInt(chunk.Row{})
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require.Error(t, err)
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require.False(t, isNull)
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d[0].SetFloat64(-2.5)
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_, err = fc.getFunction(ctx, datumsToConstants(d))
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require.NoError(t, err)
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_, isNull, err = f.evalInt(chunk.Row{})
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require.Error(t, err)
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require.False(t, isNull)
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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, datumsToConstants(d))
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require.NoError(t, err)
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ret, isNull, err = f.evalInt(chunk.Row{})
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require.NoError(t, err)
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require.False(t, isNull)
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require.Equal(t, int64(0), ret)
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sub := time.Since(start)
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require.GreaterOrEqual(t, sub.Nanoseconds(), int64(0.5*1e9))
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d[0].SetFloat64(3)
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f, err = fc.getFunction(ctx, datumsToConstants(d))
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require.NoError(t, err)
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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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require.NoError(t, err)
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require.False(t, isNull)
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require.Equal(t, int64(1), ret)
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require.LessOrEqual(t, sub.Nanoseconds(), int64(2*1e9))
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require.GreaterOrEqual(t, sub.Nanoseconds(), int64(1*1e9))
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}
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func TestBinopComparison(t *testing.T) {
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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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ctx := createContext(t)
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for _, tt := range tbl {
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fc := funcs[tt.op]
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f, err := fc.getFunction(ctx, datumsToConstants(types.MakeDatums(tt.lhs, tt.rhs)))
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require.NoError(t, err)
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v, err := evalBuiltinFunc(f, chunk.Row{})
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require.NoError(t, err)
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val, err := v.ToBool(ctx.GetSessionVars().StmtCtx)
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require.NoError(t, err)
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require.Equal(t, tt.result, val)
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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 _, tt := range nilTbl {
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fc := funcs[tt.op]
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f, err := fc.getFunction(ctx, datumsToConstants(types.MakeDatums(tt.lhs, tt.rhs)))
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require.NoError(t, err)
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v, err := evalBuiltinFunc(f, chunk.Row{})
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require.NoError(t, err)
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require.Equal(t, types.KindNull, v.Kind())
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}
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}
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func TestBinopLogic(t *testing.T) {
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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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ctx := createContext(t)
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for _, tt := range tbl {
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fc := funcs[tt.op]
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f, err := fc.getFunction(ctx, datumsToConstants(types.MakeDatums(tt.lhs, tt.rhs)))
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require.NoError(t, err)
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v, err := evalBuiltinFunc(f, chunk.Row{})
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require.NoError(t, err)
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switch x := tt.ret.(type) {
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case nil:
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require.Equal(t, types.KindNull, v.Kind())
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case int:
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require.Equal(t, v, types.NewDatum(int64(x)))
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}
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}
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}
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func TestBinopBitop(t *testing.T) {
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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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ctx := createContext(t)
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for _, tt := range tbl {
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fc := funcs[tt.op]
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f, err := fc.getFunction(ctx, datumsToConstants(types.MakeDatums(tt.lhs, tt.rhs)))
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require.NoError(t, err)
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v, err := evalBuiltinFunc(f, chunk.Row{})
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require.NoError(t, err)
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switch x := tt.ret.(type) {
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case nil:
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require.Equal(t, types.KindNull, v.Kind())
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case int:
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require.Equal(t, v, types.NewDatum(uint64(x)))
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}
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}
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}
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func TestBinopNumeric(t *testing.T) {
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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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ctx := createContext(t)
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for _, tt := range tbl {
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fc := funcs[tt.op]
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f, err := fc.getFunction(ctx, datumsToConstants(types.MakeDatums(tt.lhs, tt.rhs)))
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require.NoError(t, err)
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v, err := evalBuiltinFunc(f, chunk.Row{})
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require.NoError(t, err)
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switch v.Kind() {
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case types.KindNull:
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require.Nil(t, tt.ret)
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default:
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// we use float64 as the result type check for all.
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sc := ctx.GetSessionVars().StmtCtx
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f, err := v.ToFloat64(sc)
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require.NoError(t, err)
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d := types.NewDatum(tt.ret)
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r, err := d.ToFloat64(sc)
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require.NoError(t, err)
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require.Equal(t, r, f)
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}
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}
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testcases := []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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// div
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{1, ast.Div, float64(0)},
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{1, ast.Div, 0},
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// int div
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{1, ast.IntDiv, 0},
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{1, ast.IntDiv, uint64(0)},
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{uint64(1), ast.IntDiv, 0},
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{uint64(1), ast.IntDiv, uint64(0)},
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// mod
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{10, ast.Mod, 0},
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{10, ast.Mod, uint64(0)},
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{uint64(10), ast.Mod, 0},
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{uint64(10), ast.Mod, uint64(0)},
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{float64(10), ast.Mod, 0},
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{types.NewDecFromInt(10), ast.Mod, 0},
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}
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ctx.GetSessionVars().StmtCtx.InSelectStmt = false
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ctx.GetSessionVars().SQLMode |= mysql.ModeErrorForDivisionByZero
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ctx.GetSessionVars().StmtCtx.InInsertStmt = true
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for _, tt := range testcases {
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fc := funcs[tt.op]
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f, err := fc.getFunction(ctx, datumsToConstants(types.MakeDatums(tt.lhs, tt.rhs)))
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require.NoError(t, err)
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_, err = evalBuiltinFunc(f, chunk.Row{})
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require.Error(t, err)
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}
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ctx.GetSessionVars().StmtCtx.DividedByZeroAsWarning = true
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for _, tt := range testcases {
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fc := funcs[tt.op]
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f, err := fc.getFunction(ctx, datumsToConstants(types.MakeDatums(tt.lhs, tt.rhs)))
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require.NoError(t, err)
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v, err := evalBuiltinFunc(f, chunk.Row{})
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require.NoError(t, err)
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require.Equal(t, types.KindNull, v.Kind())
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|
}
|
|
}
|
|
|
|
func TestExtract(t *testing.T) {
|
|
ctx := createContext(t)
|
|
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 _, tt := range tbl {
|
|
fc := funcs[ast.Extract]
|
|
f, err := fc.getFunction(ctx, datumsToConstants(types.MakeDatums(tt.Unit, str)))
|
|
require.NoError(t, err)
|
|
v, err := evalBuiltinFunc(f, chunk.Row{})
|
|
require.NoError(t, err)
|
|
require.Equal(t, types.NewDatum(tt.Expect), v)
|
|
}
|
|
|
|
// Test nil
|
|
fc := funcs[ast.Extract]
|
|
f, err := fc.getFunction(ctx, datumsToConstants(types.MakeDatums("SECOND", nil)))
|
|
require.NoError(t, err)
|
|
v, err := evalBuiltinFunc(f, chunk.Row{})
|
|
require.NoError(t, err)
|
|
require.Equal(t, types.KindNull, v.Kind())
|
|
}
|
|
|
|
func TestUnaryOp(t *testing.T) {
|
|
ctx := createContext(t)
|
|
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},
|
|
{1.0, ast.UnaryMinus, -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, tt := range tbl {
|
|
fc := funcs[tt.op]
|
|
f, err := fc.getFunction(ctx, datumsToConstants(types.MakeDatums(tt.arg)))
|
|
require.NoError(t, err)
|
|
result, err := evalBuiltinFunc(f, chunk.Row{})
|
|
require.NoError(t, err)
|
|
require.Equal(t, types.NewDatum(tt.result), 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 _, tt := range tbl {
|
|
fc := funcs[tt.op]
|
|
f, err := fc.getFunction(ctx, datumsToConstants(types.MakeDatums(tt.arg)))
|
|
require.NoError(t, err)
|
|
require.NotNil(t, f)
|
|
result, err := evalBuiltinFunc(f, chunk.Row{})
|
|
require.NoError(t, err)
|
|
|
|
expect := types.NewDatum(tt.result)
|
|
ret, err := result.Compare(ctx.GetSessionVars().StmtCtx, &expect, collate.GetBinaryCollator())
|
|
require.NoError(t, err)
|
|
require.Equal(t, 0, ret, Commentf("%v %s", tt.arg, tt.op))
|
|
}
|
|
}
|
|
|
|
func TestMod(t *testing.T) {
|
|
ctx := createContext(t)
|
|
fc := funcs[ast.Mod]
|
|
f, err := fc.getFunction(ctx, datumsToConstants(types.MakeDatums(234, 10)))
|
|
require.NoError(t, err)
|
|
r, err := evalBuiltinFunc(f, chunk.Row{})
|
|
require.NoError(t, err)
|
|
require.Equal(t, types.NewIntDatum(4), r)
|
|
f, err = fc.getFunction(ctx, datumsToConstants(types.MakeDatums(29, 9)))
|
|
require.NoError(t, err)
|
|
r, err = evalBuiltinFunc(f, chunk.Row{})
|
|
require.NoError(t, err)
|
|
require.Equal(t, types.NewIntDatum(2), r)
|
|
f, err = fc.getFunction(ctx, datumsToConstants(types.MakeDatums(34.5, 3)))
|
|
require.NoError(t, err)
|
|
r, err = evalBuiltinFunc(f, chunk.Row{})
|
|
require.NoError(t, err)
|
|
require.Equal(t, types.NewDatum(1.5), r)
|
|
}
|