291 lines
11 KiB
Go
291 lines
11 KiB
Go
// 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 core
|
|
|
|
import (
|
|
"reflect"
|
|
"testing"
|
|
|
|
"github.com/pingcap/tidb/parser/mysql"
|
|
"github.com/pingcap/tidb/planner/property"
|
|
"github.com/pingcap/tidb/types"
|
|
"github.com/pingcap/tipb/go-tipb"
|
|
"github.com/stretchr/testify/require"
|
|
)
|
|
|
|
// LogicalOptimize exports the `logicalOptimize` function for test packages and
|
|
// doesn't affect the normal package and access control of Golang (tricky ^_^)
|
|
var LogicalOptimize = logicalOptimize
|
|
|
|
func testDecimalConvert(t *testing.T, lDec, lLen, rDec, rLen int, lConvert, rConvert bool, cDec, cLen int) {
|
|
lType := types.NewFieldType(mysql.TypeNewDecimal)
|
|
lType.SetDecimal(lDec)
|
|
lType.SetFlen(lLen)
|
|
|
|
rType := types.NewFieldType(mysql.TypeNewDecimal)
|
|
rType.SetDecimal(rDec)
|
|
rType.SetFlen(rLen)
|
|
|
|
cType, lCon, rCon := negotiateCommonType(lType, rType)
|
|
require.Equal(t, mysql.TypeNewDecimal, cType.GetType())
|
|
require.Equal(t, cDec, cType.GetDecimal())
|
|
require.Equal(t, cLen, cType.GetFlen())
|
|
require.Equal(t, lConvert, lCon)
|
|
require.Equal(t, rConvert, rCon)
|
|
}
|
|
|
|
func TestMPPDecimalConvert(t *testing.T) {
|
|
testDecimalConvert(t, 5, 9, 5, 8, false, false, 5, 9)
|
|
testDecimalConvert(t, 5, 8, 5, 9, false, false, 5, 9)
|
|
testDecimalConvert(t, 0, 8, 0, 11, true, false, 0, 11)
|
|
testDecimalConvert(t, 0, 16, 0, 11, false, false, 0, 16)
|
|
testDecimalConvert(t, 5, 9, 4, 9, true, true, 5, 10)
|
|
testDecimalConvert(t, 5, 8, 4, 9, true, true, 5, 10)
|
|
testDecimalConvert(t, 5, 9, 4, 8, false, true, 5, 9)
|
|
testDecimalConvert(t, 10, 16, 0, 11, true, true, 10, 21)
|
|
testDecimalConvert(t, 5, 19, 0, 20, false, true, 5, 25)
|
|
testDecimalConvert(t, 20, 20, 0, 60, true, true, 20, 65)
|
|
testDecimalConvert(t, 20, 40, 0, 60, false, true, 20, 65)
|
|
testDecimalConvert(t, 0, 40, 0, 60, false, false, 0, 60)
|
|
}
|
|
|
|
func testJoinKeyTypeConvert(t *testing.T, leftType, rightType, retType *types.FieldType, lConvert, rConvert bool) {
|
|
cType, lCon, rCon := negotiateCommonType(leftType, rightType)
|
|
require.Equal(t, retType.GetType(), cType.GetType())
|
|
require.Equal(t, retType.GetFlen(), cType.GetFlen())
|
|
require.Equal(t, retType.GetDecimal(), cType.GetDecimal())
|
|
require.Equal(t, retType.GetFlag(), cType.GetFlag())
|
|
require.Equal(t, lConvert, lCon)
|
|
require.Equal(t, rConvert, rCon)
|
|
}
|
|
|
|
func TestMPPJoinKeyTypeConvert(t *testing.T) {
|
|
tinyIntType := types.NewFieldTypeBuilder().SetType(mysql.TypeTiny).BuildP()
|
|
flen, decimal := mysql.GetDefaultFieldLengthAndDecimal(mysql.TypeTiny)
|
|
tinyIntType.SetFlen(flen)
|
|
tinyIntType.SetDecimal(decimal)
|
|
|
|
unsignedTinyIntType := types.NewFieldTypeBuilder().SetType(mysql.TypeTiny).BuildP()
|
|
unsignedTinyIntType.SetFlen(flen)
|
|
unsignedTinyIntType.SetDecimal(decimal)
|
|
unsignedTinyIntType.SetFlag(mysql.UnsignedFlag)
|
|
|
|
bigIntType := types.NewFieldTypeBuilder().SetType(mysql.TypeLonglong).BuildP()
|
|
flen, decimal = mysql.GetDefaultFieldLengthAndDecimal(mysql.TypeLonglong)
|
|
bigIntType.SetFlen(flen)
|
|
bigIntType.SetDecimal(decimal)
|
|
|
|
unsignedBigIntType := types.NewFieldTypeBuilder().SetType(mysql.TypeLonglong).BuildP()
|
|
unsignedBigIntType.SetFlen(flen)
|
|
unsignedBigIntType.SetDecimal(decimal)
|
|
unsignedBigIntType.SetFlag(mysql.UnsignedFlag)
|
|
|
|
decimalType := types.NewFieldTypeBuilder().SetType(mysql.TypeNewDecimal).SetFlen(20).SetDecimal(0).BuildP()
|
|
|
|
testJoinKeyTypeConvert(t, tinyIntType, tinyIntType, tinyIntType, false, false)
|
|
testJoinKeyTypeConvert(t, tinyIntType, unsignedTinyIntType, bigIntType, true, true)
|
|
testJoinKeyTypeConvert(t, tinyIntType, bigIntType, bigIntType, true, false)
|
|
testJoinKeyTypeConvert(t, bigIntType, tinyIntType, bigIntType, false, true)
|
|
testJoinKeyTypeConvert(t, unsignedBigIntType, tinyIntType, decimalType, true, true)
|
|
testJoinKeyTypeConvert(t, tinyIntType, unsignedBigIntType, decimalType, true, true)
|
|
testJoinKeyTypeConvert(t, bigIntType, bigIntType, bigIntType, false, false)
|
|
testJoinKeyTypeConvert(t, unsignedBigIntType, bigIntType, decimalType, true, true)
|
|
testJoinKeyTypeConvert(t, bigIntType, unsignedBigIntType, decimalType, true, true)
|
|
}
|
|
|
|
// Test for core.handleFineGrainedShuffle()
|
|
func TestHandleFineGrainedShuffle(t *testing.T) {
|
|
sortItem := property.SortItem{
|
|
Col: nil,
|
|
Desc: true,
|
|
}
|
|
var plans []*basePhysicalPlan
|
|
tableReader := &PhysicalTableReader{}
|
|
partWindow := &PhysicalWindow{
|
|
// Meaningless sort item, just for test.
|
|
PartitionBy: []property.SortItem{sortItem},
|
|
}
|
|
partialSort := &PhysicalSort{
|
|
IsPartialSort: true,
|
|
}
|
|
sort := &PhysicalSort{}
|
|
recv := &PhysicalExchangeReceiver{}
|
|
passSender := &PhysicalExchangeSender{
|
|
ExchangeType: tipb.ExchangeType_PassThrough,
|
|
}
|
|
hashSender := &PhysicalExchangeSender{
|
|
ExchangeType: tipb.ExchangeType_Hash,
|
|
}
|
|
tableScan := &PhysicalTableScan{}
|
|
plans = append(plans, &partWindow.basePhysicalPlan)
|
|
plans = append(plans, &partialSort.basePhysicalPlan)
|
|
plans = append(plans, &sort.basePhysicalPlan)
|
|
plans = append(plans, &recv.basePhysicalPlan)
|
|
plans = append(plans, &hashSender.basePhysicalPlan)
|
|
clear := func(plans []*basePhysicalPlan) {
|
|
for _, p := range plans {
|
|
p.children = nil
|
|
p.TiFlashFineGrainedShuffleStreamCount = 0
|
|
}
|
|
}
|
|
var check func(p PhysicalPlan, expStreamCount int64, expChildCount int, curChildCount int)
|
|
check = func(p PhysicalPlan, expStreamCount int64, expChildCount int, curChildCount int) {
|
|
if len(p.Children()) == 0 {
|
|
require.Equal(t, expChildCount, curChildCount)
|
|
_, isTableScan := p.(*PhysicalTableScan)
|
|
require.True(t, isTableScan)
|
|
return
|
|
}
|
|
val := reflect.ValueOf(p)
|
|
actStreamCount := reflect.Indirect(val).FieldByName("TiFlashFineGrainedShuffleStreamCount").Interface().(uint64)
|
|
require.Equal(t, uint64(expStreamCount), actStreamCount)
|
|
for _, child := range p.Children() {
|
|
check(child, expStreamCount, expChildCount, curChildCount+1)
|
|
}
|
|
}
|
|
|
|
const expStreamCount int64 = 8
|
|
sctx := MockContext()
|
|
sctx.GetSessionVars().TiFlashFineGrainedShuffleStreamCount = expStreamCount
|
|
|
|
start := func(p PhysicalPlan, expStreamCount int64, expChildCount int, curChildCount int) {
|
|
handleFineGrainedShuffle(sctx, tableReader)
|
|
check(p, expStreamCount, expChildCount, curChildCount)
|
|
clear(plans)
|
|
}
|
|
|
|
// Window <- Sort <- ExchangeReceiver <- ExchangeSender
|
|
tableReader.tablePlan = passSender
|
|
passSender.children = []PhysicalPlan{partWindow}
|
|
partWindow.children = []PhysicalPlan{partialSort}
|
|
partialSort.children = []PhysicalPlan{recv}
|
|
recv.children = []PhysicalPlan{hashSender}
|
|
hashSender.children = []PhysicalPlan{tableScan}
|
|
start(partWindow, expStreamCount, 4, 0)
|
|
|
|
// Window <- ExchangeReceiver <- ExchangeSender
|
|
tableReader.tablePlan = passSender
|
|
passSender.children = []PhysicalPlan{partWindow}
|
|
partWindow.children = []PhysicalPlan{recv}
|
|
recv.children = []PhysicalPlan{hashSender}
|
|
hashSender.children = []PhysicalPlan{tableScan}
|
|
start(partWindow, expStreamCount, 3, 0)
|
|
|
|
// Window <- Sort(x) <- ExchangeReceiver <- ExchangeSender
|
|
// Fine-grained shuffle is disabled because sort is not partial.
|
|
tableReader.tablePlan = passSender
|
|
passSender.children = []PhysicalPlan{partWindow}
|
|
partWindow.children = []PhysicalPlan{sort}
|
|
sort.children = []PhysicalPlan{recv}
|
|
recv.children = []PhysicalPlan{hashSender}
|
|
hashSender.children = []PhysicalPlan{tableScan}
|
|
start(partWindow, 0, 4, 0)
|
|
|
|
// Window <- Sort <- Window <- Sort <- ExchangeReceiver <- ExchangeSender
|
|
partWindow1 := &PhysicalWindow{
|
|
// Meaningless sort item, just for test.
|
|
PartitionBy: []property.SortItem{sortItem},
|
|
}
|
|
partialSort1 := &PhysicalSort{
|
|
IsPartialSort: true,
|
|
}
|
|
tableReader.tablePlan = passSender
|
|
passSender.children = []PhysicalPlan{partWindow}
|
|
partWindow.children = []PhysicalPlan{partialSort}
|
|
partialSort.children = []PhysicalPlan{partWindow1}
|
|
partWindow1.children = []PhysicalPlan{partialSort1}
|
|
partialSort1.children = []PhysicalPlan{recv}
|
|
recv.children = []PhysicalPlan{hashSender}
|
|
hashSender.children = []PhysicalPlan{tableScan}
|
|
start(partWindow, expStreamCount, 6, 0)
|
|
|
|
// Window <- Sort <- Window(x) <- Sort <- ExchangeReceiver <- ExchangeSender(x)
|
|
// Fine-grained shuffle is disabled because Window is not hash partition.
|
|
nonPartWindow := &PhysicalWindow{}
|
|
partialSort1 = &PhysicalSort{
|
|
IsPartialSort: true,
|
|
}
|
|
tableReader.tablePlan = passSender
|
|
passSender.children = []PhysicalPlan{partWindow}
|
|
partWindow.children = []PhysicalPlan{partialSort}
|
|
partialSort.children = []PhysicalPlan{nonPartWindow}
|
|
nonPartWindow.children = []PhysicalPlan{partialSort1}
|
|
partialSort1.children = []PhysicalPlan{recv}
|
|
recv.children = []PhysicalPlan{passSender}
|
|
passSender.children = []PhysicalPlan{tableScan}
|
|
start(partWindow, 0, 6, 0)
|
|
|
|
// HashAgg <- Window <- ExchangeReceiver <- ExchangeSender
|
|
hashAgg := &PhysicalHashAgg{}
|
|
tableReader.tablePlan = passSender
|
|
passSender.children = []PhysicalPlan{hashAgg}
|
|
hashAgg.children = []PhysicalPlan{partWindow}
|
|
partWindow.children = []PhysicalPlan{recv}
|
|
recv.children = []PhysicalPlan{hashSender}
|
|
hashSender.children = []PhysicalPlan{tableScan}
|
|
require.Equal(t, uint64(0), hashAgg.TiFlashFineGrainedShuffleStreamCount)
|
|
start(partWindow, expStreamCount, 3, 0)
|
|
|
|
// Window <- HashAgg(x) <- ExchangeReceiver <- ExchangeSender
|
|
tableReader.tablePlan = passSender
|
|
passSender.children = []PhysicalPlan{partWindow}
|
|
hashAgg = &PhysicalHashAgg{}
|
|
partWindow.children = []PhysicalPlan{hashAgg}
|
|
hashAgg.children = []PhysicalPlan{recv}
|
|
recv.children = []PhysicalPlan{hashSender}
|
|
hashSender.children = []PhysicalPlan{tableScan}
|
|
start(partWindow, 0, 4, 0)
|
|
|
|
// Window <- Join(x) <- ExchangeReceiver <- ExchangeSender
|
|
// <- ExchangeReceiver <- ExchangeSender
|
|
tableReader.tablePlan = passSender
|
|
passSender.children = []PhysicalPlan{partWindow}
|
|
hashJoin := &PhysicalHashJoin{}
|
|
recv1 := &PhysicalExchangeReceiver{}
|
|
tableScan1 := &PhysicalTableScan{}
|
|
partWindow.children = []PhysicalPlan{hashJoin}
|
|
hashSender1 := &PhysicalExchangeSender{
|
|
ExchangeType: tipb.ExchangeType_Hash,
|
|
}
|
|
hashJoin.children = []PhysicalPlan{recv, recv1}
|
|
recv.children = []PhysicalPlan{hashSender}
|
|
recv1.children = []PhysicalPlan{hashSender1}
|
|
hashSender.children = []PhysicalPlan{tableScan}
|
|
hashSender1.children = []PhysicalPlan{tableScan1}
|
|
start(partWindow, 0, 4, 0)
|
|
|
|
// Join <- ExchangeReceiver <- ExchangeSender <- Window <- ExchangeReceiver(2) <- ExchangeSender(2)
|
|
// <- ExchangeReceiver(1) <- ExchangeSender(1)
|
|
tableReader.tablePlan = passSender
|
|
passSender.children = []PhysicalPlan{partWindow}
|
|
hashJoin = &PhysicalHashJoin{}
|
|
recv1 = &PhysicalExchangeReceiver{}
|
|
hashJoin.children = []PhysicalPlan{recv, recv1}
|
|
recv.children = []PhysicalPlan{hashSender}
|
|
hashSender.children = []PhysicalPlan{partWindow}
|
|
recv2 := &PhysicalExchangeReceiver{}
|
|
hashSender2 := &PhysicalExchangeSender{
|
|
ExchangeType: tipb.ExchangeType_Hash,
|
|
}
|
|
tableScan2 := &PhysicalTableScan{}
|
|
partWindow.children = []PhysicalPlan{recv2}
|
|
recv2.children = []PhysicalPlan{hashSender2}
|
|
hashSender2.children = []PhysicalPlan{tableScan2}
|
|
recv1.children = []PhysicalPlan{hashSender1}
|
|
tableScan1 = &PhysicalTableScan{}
|
|
hashSender1.children = []PhysicalPlan{tableScan1}
|
|
start(partWindow, expStreamCount, 3, 0)
|
|
}
|