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builtin_cast_vec_test.go
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// Copyright 2019 PingCAP, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package expression
import (
"math"
"math/rand"
"strconv"
"testing"
"time"
"github.com/pingcap/tidb/parser/ast"
"github.com/pingcap/tidb/parser/mysql"
"github.com/pingcap/tidb/types"
"github.com/pingcap/tidb/util/chunk"
"github.com/pingcap/tidb/util/mock"
"github.com/stretchr/testify/require"
)
var vecBuiltinCastCases = map[string][]vecExprBenchCase{
ast.Cast: {
{retEvalType: types.ETDecimal, childrenTypes: []types.EvalType{types.ETJson}, geners: []dataGenerator{newDecimalJSONGener(0)}},
{retEvalType: types.ETDecimal, childrenTypes: []types.EvalType{types.ETString}, geners: []dataGenerator{newDecimalStringGener()}},
{retEvalType: types.ETDecimal, childrenTypes: []types.EvalType{types.ETReal}},
{retEvalType: types.ETDecimal, childrenTypes: []types.EvalType{types.ETDuration}},
{retEvalType: types.ETInt, childrenTypes: []types.EvalType{types.ETInt}},
{retEvalType: types.ETInt, childrenTypes: []types.EvalType{types.ETReal}},
{retEvalType: types.ETInt, childrenTypes: []types.EvalType{types.ETDecimal}},
{retEvalType: types.ETInt, childrenTypes: []types.EvalType{types.ETJson}, geners: []dataGenerator{&constJSONGener{strconv.Itoa(rand.Int())}}},
{retEvalType: types.ETInt, childrenTypes: []types.EvalType{types.ETDatetime}},
{retEvalType: types.ETInt, childrenTypes: []types.EvalType{types.ETDuration}},
{
retEvalType: types.ETInt,
childrenTypes: []types.EvalType{types.ETString},
geners: []dataGenerator{&numStrGener{*newRangeInt64Gener(math.MinInt64+1, 0)}},
},
{
retEvalType: types.ETInt,
childrenTypes: []types.EvalType{types.ETString},
geners: []dataGenerator{&numStrGener{*newRangeInt64Gener(0, math.MaxInt64)}},
},
{retEvalType: types.ETReal, childrenTypes: []types.EvalType{types.ETInt}},
{retEvalType: types.ETDuration, childrenTypes: []types.EvalType{types.ETInt}, geners: []dataGenerator{newRandDurInt()}},
{retEvalType: types.ETDuration, childrenTypes: []types.EvalType{types.ETReal}, geners: []dataGenerator{newRandDurReal()}},
{retEvalType: types.ETDuration, childrenTypes: []types.EvalType{types.ETDecimal}, geners: []dataGenerator{newRandDurDecimal()}},
{retEvalType: types.ETReal, childrenTypes: []types.EvalType{types.ETReal}},
{retEvalType: types.ETReal, childrenTypes: []types.EvalType{types.ETJson}, geners: []dataGenerator{newDecimalJSONGener(0)}},
{retEvalType: types.ETReal, childrenTypes: []types.EvalType{types.ETDecimal}},
{retEvalType: types.ETReal, childrenTypes: []types.EvalType{types.ETString}, geners: []dataGenerator{newRealStringGener()}},
{retEvalType: types.ETReal, childrenTypes: []types.EvalType{types.ETDatetime}},
{retEvalType: types.ETReal, childrenTypes: []types.EvalType{types.ETDuration}, geners: []dataGenerator{newRangeDurationGener(0.5)}},
{retEvalType: types.ETDuration, childrenTypes: []types.EvalType{types.ETDatetime},
geners: []dataGenerator{&dateTimeGenerWithFsp{
defaultGener: *newDefaultGener(0.2, types.ETDatetime),
fsp: 1,
}},
},
{retEvalType: types.ETString, childrenTypes: []types.EvalType{types.ETInt}},
{retEvalType: types.ETDecimal, childrenTypes: []types.EvalType{types.ETDatetime}},
{retEvalType: types.ETString, childrenTypes: []types.EvalType{types.ETString}},
{retEvalType: types.ETString, childrenTypes: []types.EvalType{types.ETDuration}},
{retEvalType: types.ETString, childrenTypes: []types.EvalType{types.ETDatetime}},
{retEvalType: types.ETString, childrenTypes: []types.EvalType{types.ETTimestamp}},
{retEvalType: types.ETString, childrenTypes: []types.EvalType{types.ETReal}},
{retEvalType: types.ETString, childrenTypes: []types.EvalType{types.ETJson}},
{retEvalType: types.ETString, childrenTypes: []types.EvalType{types.ETDecimal}},
{retEvalType: types.ETDuration, childrenTypes: []types.EvalType{types.ETJson}, geners: []dataGenerator{&randJSONDuration{}}},
{retEvalType: types.ETDuration, childrenTypes: []types.EvalType{types.ETDuration}},
{retEvalType: types.ETJson, childrenTypes: []types.EvalType{types.ETInt}},
{retEvalType: types.ETJson, childrenTypes: []types.EvalType{types.ETReal}},
{retEvalType: types.ETJson, childrenTypes: []types.EvalType{types.ETDuration}},
{retEvalType: types.ETJson, childrenTypes: []types.EvalType{types.ETDatetime}},
{retEvalType: types.ETJson, childrenTypes: []types.EvalType{types.ETJson}},
{retEvalType: types.ETJson, childrenTypes: []types.EvalType{types.ETString}, geners: []dataGenerator{newJSONStringGener()}},
{retEvalType: types.ETJson, childrenTypes: []types.EvalType{types.ETDecimal}},
{retEvalType: types.ETDatetime, childrenTypes: []types.EvalType{types.ETJson}, geners: []dataGenerator{&datetimeJSONGener{}}},
{retEvalType: types.ETDatetime, childrenTypes: []types.EvalType{types.ETReal}},
{retEvalType: types.ETDatetime, childrenTypes: []types.EvalType{types.ETDecimal}},
{retEvalType: types.ETDatetime, childrenTypes: []types.EvalType{types.ETInt}},
{retEvalType: types.ETDatetime, childrenTypes: []types.EvalType{types.ETString},
geners: []dataGenerator{
&dateTimeStrGener{randGen: newDefaultRandGen()},
&dateStrGener{randGen: newDefaultRandGen()},
&timeStrGener{randGen: newDefaultRandGen()},
}},
{retEvalType: types.ETDatetime, childrenTypes: []types.EvalType{types.ETDuration}},
{retEvalType: types.ETDatetime, childrenTypes: []types.EvalType{types.ETDatetime}},
{retEvalType: types.ETDatetime, childrenTypes: []types.EvalType{types.ETTimestamp}},
{retEvalType: types.ETDatetime, childrenTypes: []types.EvalType{types.ETJson},
geners: []dataGenerator{
newJSONTimeGener(),
}},
{retEvalType: types.ETDecimal, childrenTypes: []types.EvalType{types.ETDecimal}},
{retEvalType: types.ETDecimal, childrenTypes: []types.EvalType{types.ETInt}},
},
}
type dateTimeGenerWithFsp struct {
defaultGener
fsp int
}
func (g *dateTimeGenerWithFsp) gen() interface{} {
result := g.defaultGener.gen()
if t, ok := result.(types.Time); ok {
t.SetFsp(g.fsp)
return t
}
return result
}
type randJSONDuration struct{}
func (g *randJSONDuration) gen() interface{} {
d := types.Duration{
Duration: time.Duration(rand.Intn(12))*time.Hour + time.Duration(rand.Intn(60))*time.Minute + time.Duration(rand.Intn(60))*time.Second + time.Duration(rand.Intn(1000))*time.Millisecond,
Fsp: 3}
return types.CreateBinaryJSON(d)
}
type datetimeJSONGener struct{}
func (g *datetimeJSONGener) gen() interface{} {
year := rand.Intn(2200)
month := rand.Intn(10) + 1
day := rand.Intn(20) + 1
hour := rand.Intn(12)
minute := rand.Intn(60)
second := rand.Intn(60)
microsecond := rand.Intn(1000000)
d := types.NewTime(
types.FromDate(year, month, day, hour, minute, second, microsecond),
0,
3,
)
return types.CreateBinaryJSON(d)
}
func TestVectorizedBuiltinCastEvalOneVec(t *testing.T) {
testVectorizedEvalOneVec(t, vecBuiltinCastCases)
}
func TestVectorizedBuiltinCastFunc(t *testing.T) {
testVectorizedBuiltinFunc(t, vecBuiltinCastCases)
}
func TestVectorizedCastRealAsTime(t *testing.T) {
col := &Column{RetType: types.NewFieldType(mysql.TypeDouble), Index: 0}
baseFunc, err := newBaseBuiltinFunc(mock.NewContext(), "", []Expression{col}, types.NewFieldType(mysql.TypeDatetime))
if err != nil {
panic(err)
}
cast := &builtinCastRealAsTimeSig{baseFunc}
inputChunk, expect := genCastRealAsTime()
inputs := []*chunk.Chunk{
inputChunk,
}
for _, input := range inputs {
result := chunk.NewColumn(types.NewFieldType(mysql.TypeDatetime), input.NumRows())
require.NoError(t, cast.vecEvalTime(input, result))
for i := 0; i < input.NumRows(); i++ {
res, isNull, err := cast.evalTime(input.GetRow(i))
require.NoError(t, err)
if expect[i] == nil {
require.True(t, result.IsNull(i))
require.True(t, isNull)
continue
}
require.Equal(t, result.GetTime(i), *expect[i])
require.Equal(t, res, *expect[i])
}
}
}
func getTime(year int, month int, day int, hour int, minute int, second int) *types.Time {
retTime := types.NewTime(types.FromDate(year, month, day, hour, minute, second, 0), mysql.TypeDatetime, types.DefaultFsp)
return &retTime
}
func genCastRealAsTime() (*chunk.Chunk, []*types.Time) {
input := chunk.NewChunkWithCapacity([]*types.FieldType{types.NewFieldType(mysql.TypeDouble)}, 20)
expect := make([]*types.Time, 0, 20)
// valid
input.AppendFloat64(0, 0)
input.AppendFloat64(0, 101.1)
input.AppendFloat64(0, 111.1)
input.AppendFloat64(0, 1122.1)
input.AppendFloat64(0, 31212.111)
input.AppendFloat64(0, 121212.1111)
input.AppendFloat64(0, 1121212.111111)
input.AppendFloat64(0, 11121212.111111)
input.AppendFloat64(0, 99991111.1111111)
input.AppendFloat64(0, 201212121212.1111111)
input.AppendFloat64(0, 20121212121212.1111111)
// invalid
input.AppendFloat64(0, 1.1)
input.AppendFloat64(0, 48.1)
input.AppendFloat64(0, 100.1)
input.AppendFloat64(0, 1301.11)
input.AppendFloat64(0, 1131.111)
input.AppendFloat64(0, 100001111.111)
input.AppendFloat64(0, 20121212121260.1111111)
input.AppendFloat64(0, 20121212126012.1111111)
input.AppendFloat64(0, 20121212241212.1111111)
expect = append(expect, getTime(0, 0, 0, 0, 0, 0))
expect = append(expect, getTime(2000, 1, 1, 0, 0, 0))
expect = append(expect, getTime(2000, 1, 11, 0, 0, 0))
expect = append(expect, getTime(2000, 11, 22, 0, 0, 0))
expect = append(expect, getTime(2003, 12, 12, 0, 0, 0))
expect = append(expect, getTime(2012, 12, 12, 0, 0, 0))
expect = append(expect, getTime(112, 12, 12, 0, 0, 0))
expect = append(expect, getTime(1112, 12, 12, 0, 0, 0))
expect = append(expect, getTime(9999, 11, 11, 0, 0, 0))
expect = append(expect, getTime(2020, 12, 12, 12, 12, 12))
expect = append(expect, getTime(2012, 12, 12, 12, 12, 12))
expect = append(expect, nil)
expect = append(expect, nil)
expect = append(expect, nil)
expect = append(expect, nil)
expect = append(expect, nil)
expect = append(expect, nil)
expect = append(expect, nil)
expect = append(expect, nil)
expect = append(expect, nil)
return input, expect
}
// for issue https://github.com/pingcap/tidb/issues/16825
func TestVectorizedCastStringAsDecimalWithUnsignedFlagInUnion(t *testing.T) {
col := &Column{RetType: types.NewFieldType(mysql.TypeString), Index: 0}
baseFunc, err := newBaseBuiltinFunc(mock.NewContext(), "", []Expression{col}, types.NewFieldType(mysql.TypeNewDecimal))
if err != nil {
panic(err)
}
// set `inUnion` to `true`
baseCast := newBaseBuiltinCastFunc(baseFunc, true)
// set the `UnsignedFlag` bit
baseCast.tp.AddFlag(mysql.UnsignedFlag)
cast := &builtinCastStringAsDecimalSig{baseCast}
inputs := []*chunk.Chunk{
genCastStringAsDecimal(false),
genCastStringAsDecimal(true),
}
for _, input := range inputs {
result := chunk.NewColumn(types.NewFieldType(mysql.TypeNewDecimal), input.NumRows())
require.NoError(t, cast.vecEvalDecimal(input, result))
for i := 0; i < input.NumRows(); i++ {
res, isNull, err := cast.evalDecimal(input.GetRow(i))
require.False(t, isNull)
require.NoError(t, err)
require.Zero(t, result.GetDecimal(i).Compare(res))
}
}
}
func genCastStringAsDecimal(isNegative bool) *chunk.Chunk {
var sign float64
if isNegative {
sign = -1
} else {
sign = 1
}
input := chunk.NewChunkWithCapacity([]*types.FieldType{types.NewFieldType(mysql.TypeString)}, 1024)
for i := 0; i < 1024; i++ {
d := new(types.MyDecimal)
f := sign * rand.Float64() * 100000
if err := d.FromFloat64(f); err != nil {
panic(err)
}
input.AppendString(0, d.String())
}
return input
}
func BenchmarkVectorizedBuiltinCastEvalOneVec(b *testing.B) {
benchmarkVectorizedEvalOneVec(b, vecBuiltinCastCases)
}
func BenchmarkVectorizedBuiltinCastFunc(b *testing.B) {
benchmarkVectorizedBuiltinFunc(b, vecBuiltinCastCases)
}