381 lines
15 KiB
Go
381 lines
15 KiB
Go
// Copyright 2018 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 aggfuncs_test
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import (
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"fmt"
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"testing"
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"time"
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"github.com/pingcap/tidb/executor/aggfuncs"
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"github.com/pingcap/tidb/parser/ast"
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"github.com/pingcap/tidb/parser/mysql"
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"github.com/pingcap/tidb/testkit"
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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/stretchr/testify/require"
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)
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func maxMinUpdateMemDeltaGens(srcChk *chunk.Chunk, dataType *types.FieldType, isMax bool) (memDeltas []int64, err error) {
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memDeltas = make([]int64, srcChk.NumRows())
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var (
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preStringVal string
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preJSONVal string
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preEnumVal types.Enum
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preSetVal types.Set
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)
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for i := 0; i < srcChk.NumRows(); i++ {
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row := srcChk.GetRow(i)
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if row.IsNull(0) {
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continue
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}
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switch dataType.GetType() {
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case mysql.TypeString:
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curVal := row.GetString(0)
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if i == 0 {
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memDeltas[i] = int64(len(curVal))
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preStringVal = curVal
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} else if isMax && curVal > preStringVal || !isMax && curVal < preStringVal {
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memDeltas[i] = int64(len(curVal)) - int64(len(preStringVal))
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preStringVal = curVal
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}
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case mysql.TypeJSON:
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curVal := row.GetJSON(0)
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curStringVal := string(curVal.Value)
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if i == 0 {
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memDeltas[i] = int64(len(curStringVal))
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preJSONVal = curStringVal
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} else if isMax && curStringVal > preJSONVal || !isMax && curStringVal < preJSONVal {
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memDeltas[i] = int64(len(curStringVal)) - int64(len(preJSONVal))
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preJSONVal = curStringVal
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}
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case mysql.TypeEnum:
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curVal := row.GetEnum(0)
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if i == 0 {
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memDeltas[i] = int64(len(curVal.Name))
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preEnumVal = curVal
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} else if isMax && curVal.Name > preEnumVal.Name || !isMax && curVal.Name < preEnumVal.Name {
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memDeltas[i] = int64(len(curVal.Name)) - int64(len(preEnumVal.Name))
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preEnumVal = curVal
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}
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case mysql.TypeSet:
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curVal := row.GetSet(0)
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if i == 0 {
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memDeltas[i] = int64(len(curVal.Name))
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preSetVal = curVal
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} else if isMax && curVal.Name > preSetVal.Name || !isMax && curVal.Name < preSetVal.Name {
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memDeltas[i] = int64(len(curVal.Name)) - int64(len(preSetVal.Name))
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preSetVal = curVal
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}
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}
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}
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return memDeltas, nil
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}
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func maxUpdateMemDeltaGens(srcChk *chunk.Chunk, dataType *types.FieldType) (memDeltas []int64, err error) {
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return maxMinUpdateMemDeltaGens(srcChk, dataType, true)
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}
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func minUpdateMemDeltaGens(srcChk *chunk.Chunk, dataType *types.FieldType) (memDeltas []int64, err error) {
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return maxMinUpdateMemDeltaGens(srcChk, dataType, false)
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}
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func TestMergePartialResult4MaxMin(t *testing.T) {
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elems := []string{"e", "d", "c", "b", "a"}
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enumA, _ := types.ParseEnum(elems, "a", mysql.DefaultCollationName)
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enumC, _ := types.ParseEnum(elems, "c", mysql.DefaultCollationName)
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enumE, _ := types.ParseEnum(elems, "e", mysql.DefaultCollationName)
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setC, _ := types.ParseSet(elems, "c", mysql.DefaultCollationName) // setC.Value == 4
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setED, _ := types.ParseSet(elems, "e,d", mysql.DefaultCollationName) // setED.Value == 3
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unsignedType := types.NewFieldType(mysql.TypeLonglong)
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unsignedType.AddFlag(mysql.UnsignedFlag)
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tests := []aggTest{
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buildAggTester(ast.AggFuncMax, mysql.TypeLonglong, 5, 4, 4, 4),
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buildAggTesterWithFieldType(ast.AggFuncMax, unsignedType, 5, 4, 4, 4),
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buildAggTester(ast.AggFuncMax, mysql.TypeFloat, 5, 4.0, 4.0, 4.0),
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buildAggTester(ast.AggFuncMax, mysql.TypeDouble, 5, 4.0, 4.0, 4.0),
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buildAggTester(ast.AggFuncMax, mysql.TypeNewDecimal, 5, types.NewDecFromInt(4), types.NewDecFromInt(4), types.NewDecFromInt(4)),
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buildAggTester(ast.AggFuncMax, mysql.TypeString, 5, "4", "4", "4"),
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buildAggTester(ast.AggFuncMax, mysql.TypeDate, 5, types.TimeFromDays(369), types.TimeFromDays(369), types.TimeFromDays(369)),
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buildAggTester(ast.AggFuncMax, mysql.TypeDuration, 5, types.Duration{Duration: time.Duration(4)}, types.Duration{Duration: time.Duration(4)}, types.Duration{Duration: time.Duration(4)}),
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buildAggTester(ast.AggFuncMax, mysql.TypeJSON, 5, types.CreateBinaryJSON(int64(4)), types.CreateBinaryJSON(int64(4)), types.CreateBinaryJSON(int64(4))),
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buildAggTester(ast.AggFuncMax, mysql.TypeEnum, 5, enumE, enumC, enumE),
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buildAggTester(ast.AggFuncMax, mysql.TypeSet, 5, setED, setED, setED),
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buildAggTester(ast.AggFuncMin, mysql.TypeLonglong, 5, 0, 2, 0),
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buildAggTesterWithFieldType(ast.AggFuncMin, unsignedType, 5, 0, 2, 0),
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buildAggTester(ast.AggFuncMin, mysql.TypeFloat, 5, 0.0, 2.0, 0.0),
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buildAggTester(ast.AggFuncMin, mysql.TypeDouble, 5, 0.0, 2.0, 0.0),
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buildAggTester(ast.AggFuncMin, mysql.TypeNewDecimal, 5, types.NewDecFromInt(0), types.NewDecFromInt(2), types.NewDecFromInt(0)),
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buildAggTester(ast.AggFuncMin, mysql.TypeString, 5, "0", "2", "0"),
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buildAggTester(ast.AggFuncMin, mysql.TypeDate, 5, types.TimeFromDays(365), types.TimeFromDays(367), types.TimeFromDays(365)),
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buildAggTester(ast.AggFuncMin, mysql.TypeDuration, 5, types.Duration{Duration: time.Duration(0)}, types.Duration{Duration: time.Duration(2)}, types.Duration{Duration: time.Duration(0)}),
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buildAggTester(ast.AggFuncMin, mysql.TypeJSON, 5, types.CreateBinaryJSON(int64(0)), types.CreateBinaryJSON(int64(2)), types.CreateBinaryJSON(int64(0))),
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buildAggTester(ast.AggFuncMin, mysql.TypeEnum, 5, enumA, enumA, enumA),
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buildAggTester(ast.AggFuncMin, mysql.TypeSet, 5, setC, setC, setC),
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}
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for _, test := range tests {
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test := test
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t.Run(test.funcName, func(t *testing.T) {
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testMergePartialResult(t, test)
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})
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}
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}
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func TestMaxMin(t *testing.T) {
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unsignedType := types.NewFieldType(mysql.TypeLonglong)
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unsignedType.AddFlag(mysql.UnsignedFlag)
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tests := []aggTest{
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buildAggTester(ast.AggFuncMax, mysql.TypeLonglong, 5, nil, 4),
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buildAggTesterWithFieldType(ast.AggFuncMax, unsignedType, 5, nil, 4),
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buildAggTester(ast.AggFuncMax, mysql.TypeFloat, 5, nil, 4.0),
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buildAggTester(ast.AggFuncMax, mysql.TypeDouble, 5, nil, 4.0),
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buildAggTester(ast.AggFuncMax, mysql.TypeNewDecimal, 5, nil, types.NewDecFromInt(4)),
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buildAggTester(ast.AggFuncMax, mysql.TypeString, 5, nil, "4", "4"),
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buildAggTester(ast.AggFuncMax, mysql.TypeDate, 5, nil, types.TimeFromDays(369)),
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buildAggTester(ast.AggFuncMax, mysql.TypeDuration, 5, nil, types.Duration{Duration: time.Duration(4)}),
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buildAggTester(ast.AggFuncMax, mysql.TypeJSON, 5, nil, types.CreateBinaryJSON(int64(4))),
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buildAggTester(ast.AggFuncMin, mysql.TypeLonglong, 5, nil, 0),
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buildAggTesterWithFieldType(ast.AggFuncMin, unsignedType, 5, nil, 0),
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buildAggTester(ast.AggFuncMin, mysql.TypeFloat, 5, nil, 0.0),
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buildAggTester(ast.AggFuncMin, mysql.TypeDouble, 5, nil, 0.0),
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buildAggTester(ast.AggFuncMin, mysql.TypeNewDecimal, 5, nil, types.NewDecFromInt(0)),
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buildAggTester(ast.AggFuncMin, mysql.TypeString, 5, nil, "0"),
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buildAggTester(ast.AggFuncMin, mysql.TypeDate, 5, nil, types.TimeFromDays(365)),
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buildAggTester(ast.AggFuncMin, mysql.TypeDuration, 5, nil, types.Duration{Duration: time.Duration(0)}),
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buildAggTester(ast.AggFuncMin, mysql.TypeJSON, 5, nil, types.CreateBinaryJSON(int64(0))),
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}
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for _, test := range tests {
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test := test
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t.Run(test.funcName, func(t *testing.T) {
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testAggFunc(t, test)
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})
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}
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}
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func TestMemMaxMin(t *testing.T) {
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tests := []aggMemTest{
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buildAggMemTester(ast.AggFuncMax, mysql.TypeLonglong, 5,
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aggfuncs.DefPartialResult4MaxMinIntSize, defaultUpdateMemDeltaGens, false),
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buildAggMemTester(ast.AggFuncMax, mysql.TypeLonglong, 5,
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aggfuncs.DefPartialResult4MaxMinUintSize, defaultUpdateMemDeltaGens, false),
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buildAggMemTester(ast.AggFuncMax, mysql.TypeNewDecimal, 5,
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aggfuncs.DefPartialResult4MaxMinDecimalSize, defaultUpdateMemDeltaGens, false),
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buildAggMemTester(ast.AggFuncMax, mysql.TypeFloat, 5,
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aggfuncs.DefPartialResult4MaxMinFloat32Size, defaultUpdateMemDeltaGens, false),
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buildAggMemTester(ast.AggFuncMax, mysql.TypeDouble, 5,
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aggfuncs.DefPartialResult4MaxMinFloat64Size, defaultUpdateMemDeltaGens, false),
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buildAggMemTester(ast.AggFuncMax, mysql.TypeDate, 5,
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aggfuncs.DefPartialResult4MaxMinTimeSize, defaultUpdateMemDeltaGens, false),
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buildAggMemTester(ast.AggFuncMax, mysql.TypeDuration, 5,
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aggfuncs.DefPartialResult4MaxMinDurationSize, defaultUpdateMemDeltaGens, false),
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buildAggMemTester(ast.AggFuncMax, mysql.TypeString, 99,
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aggfuncs.DefPartialResult4MaxMinStringSize, maxUpdateMemDeltaGens, false),
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buildAggMemTester(ast.AggFuncMax, mysql.TypeJSON, 99,
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aggfuncs.DefPartialResult4MaxMinJSONSize, maxUpdateMemDeltaGens, false),
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buildAggMemTester(ast.AggFuncMax, mysql.TypeEnum, 99,
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aggfuncs.DefPartialResult4MaxMinEnumSize, maxUpdateMemDeltaGens, false),
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buildAggMemTester(ast.AggFuncMax, mysql.TypeSet, 99,
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aggfuncs.DefPartialResult4MaxMinSetSize, maxUpdateMemDeltaGens, false),
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buildAggMemTester(ast.AggFuncMin, mysql.TypeLonglong, 5,
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aggfuncs.DefPartialResult4MaxMinIntSize, defaultUpdateMemDeltaGens, false),
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buildAggMemTester(ast.AggFuncMin, mysql.TypeLonglong, 5,
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aggfuncs.DefPartialResult4MaxMinUintSize, defaultUpdateMemDeltaGens, false),
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buildAggMemTester(ast.AggFuncMin, mysql.TypeNewDecimal, 5,
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aggfuncs.DefPartialResult4MaxMinDecimalSize, defaultUpdateMemDeltaGens, false),
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buildAggMemTester(ast.AggFuncMin, mysql.TypeFloat, 5,
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aggfuncs.DefPartialResult4MaxMinFloat32Size, defaultUpdateMemDeltaGens, false),
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buildAggMemTester(ast.AggFuncMin, mysql.TypeDouble, 5,
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aggfuncs.DefPartialResult4MaxMinFloat64Size, defaultUpdateMemDeltaGens, false),
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buildAggMemTester(ast.AggFuncMin, mysql.TypeDate, 5,
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aggfuncs.DefPartialResult4MaxMinTimeSize, defaultUpdateMemDeltaGens, false),
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buildAggMemTester(ast.AggFuncMin, mysql.TypeDuration, 5,
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aggfuncs.DefPartialResult4MaxMinDurationSize, defaultUpdateMemDeltaGens, false),
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buildAggMemTester(ast.AggFuncMin, mysql.TypeString, 99,
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aggfuncs.DefPartialResult4MaxMinStringSize, minUpdateMemDeltaGens, false),
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buildAggMemTester(ast.AggFuncMin, mysql.TypeJSON, 99,
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aggfuncs.DefPartialResult4MaxMinJSONSize, minUpdateMemDeltaGens, false),
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buildAggMemTester(ast.AggFuncMin, mysql.TypeEnum, 99,
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aggfuncs.DefPartialResult4MaxMinEnumSize, minUpdateMemDeltaGens, false),
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buildAggMemTester(ast.AggFuncMin, mysql.TypeSet, 99,
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aggfuncs.DefPartialResult4MaxMinSetSize, minUpdateMemDeltaGens, false),
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}
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for _, test := range tests {
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test := test
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t.Run(test.aggTest.funcName, func(t *testing.T) {
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testAggMemFunc(t, test)
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})
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}
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}
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type maxSlidingWindowTestCase struct {
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rowType string
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insertValue string
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expect []string
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orderByExpect []string
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orderBy bool
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frameType ast.FrameType
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}
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func testMaxSlidingWindow(tk *testkit.TestKit, tc maxSlidingWindowTestCase) {
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tk.MustExec(fmt.Sprintf("CREATE TABLE t (a %s);", tc.rowType))
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tk.MustExec(fmt.Sprintf("insert into t values %s;", tc.insertValue))
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var orderBy string
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if tc.orderBy {
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orderBy = "ORDER BY a"
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}
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var result *testkit.Result
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switch tc.frameType {
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case ast.Rows:
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result = tk.MustQuery(fmt.Sprintf("SELECT max(a) OVER (%s ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FROM t;", orderBy))
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case ast.Ranges:
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result = tk.MustQuery(fmt.Sprintf("SELECT max(a) OVER (%s RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FROM t;", orderBy))
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default:
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result = tk.MustQuery(fmt.Sprintf("SELECT max(a) OVER (%s) FROM t;", orderBy))
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if tc.orderBy {
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result.Check(testkit.Rows(tc.orderByExpect...))
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return
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}
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}
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result.Check(testkit.Rows(tc.expect...))
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}
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func TestMaxSlidingWindow(t *testing.T) {
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store := testkit.CreateMockStore(t)
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tk := testkit.NewTestKit(t, store)
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tk.MustExec("use test")
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testCases := []maxSlidingWindowTestCase{
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{
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rowType: "bigint",
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insertValue: "(1), (3), (2)",
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expect: []string{"3", "3", "3"},
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orderByExpect: []string{"1", "2", "3"},
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},
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{
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rowType: "int unsigned",
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insertValue: "(1), (3), (2)",
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expect: []string{"3", "3", "3"},
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orderByExpect: []string{"1", "2", "3"},
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},
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{
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rowType: "float",
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insertValue: "(1.1), (3.3), (2.2)",
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expect: []string{"3.3", "3.3", "3.3"},
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orderByExpect: []string{"1.1", "2.2", "3.3"},
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},
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{
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rowType: "double",
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insertValue: "(1.1), (3.3), (2.2)",
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expect: []string{"3.3", "3.3", "3.3"},
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orderByExpect: []string{"1.1", "2.2", "3.3"},
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},
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{
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rowType: "decimal(5, 2)",
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insertValue: "(1.1), (3.3), (2.2)",
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expect: []string{"3.30", "3.30", "3.30"},
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orderByExpect: []string{"1.10", "2.20", "3.30"},
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},
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{
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rowType: "text",
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insertValue: "('1.1'), ('3.3'), ('2.2')",
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expect: []string{"3.3", "3.3", "3.3"},
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orderByExpect: []string{"1.1", "2.2", "3.3"},
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},
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{
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rowType: "time",
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insertValue: "('00:00:00'), ('03:00:00'), ('02:00:00')",
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expect: []string{"03:00:00", "03:00:00", "03:00:00"},
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orderByExpect: []string{"00:00:00", "02:00:00", "03:00:00"},
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},
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{
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rowType: "date",
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insertValue: "('2020-09-08'), ('2022-09-10'), ('2020-09-10')",
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expect: []string{"2022-09-10", "2022-09-10", "2022-09-10"},
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orderByExpect: []string{"2020-09-08", "2020-09-10", "2022-09-10"},
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},
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{
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rowType: "datetime",
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insertValue: "('2020-09-08 02:00:00'), ('2022-09-10 00:00:00'), ('2020-09-10 00:00:00')",
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expect: []string{"2022-09-10 00:00:00", "2022-09-10 00:00:00", "2022-09-10 00:00:00"},
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orderByExpect: []string{"2020-09-08 02:00:00", "2020-09-10 00:00:00", "2022-09-10 00:00:00"},
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},
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}
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orderBy := []bool{false, true}
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frameType := []ast.FrameType{ast.Rows, ast.Ranges, -1}
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for _, o := range orderBy {
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for _, f := range frameType {
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for _, tc := range testCases {
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t.Run(fmt.Sprintf("%s_%v_%d", tc.rowType, o, f), func(t *testing.T) {
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tc.frameType = f
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tc.orderBy = o
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tk.MustExec("drop table if exists t;")
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testMaxSlidingWindow(tk, tc)
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})
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}
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}
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}
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}
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func TestDequeReset(t *testing.T) {
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deque := aggfuncs.NewDeque(true, func(i, j interface{}) int {
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return types.CompareInt64(i.(int64), j.(int64))
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})
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deque.PushBack(0, 12)
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deque.Reset()
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require.Len(t, deque.Items, 0)
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require.True(t, deque.IsMax)
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}
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func TestDequePushPop(t *testing.T) {
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deque := aggfuncs.NewDeque(true, func(i, j interface{}) int {
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return types.CompareInt64(i.(int64), j.(int64))
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})
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times := 15
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// pushes element from back of deque
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for i := 0; i < times; i++ {
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if i != 0 {
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front, isEnd := deque.Front()
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require.False(t, isEnd)
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require.Zero(t, front.Item)
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require.Zero(t, front.Idx)
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}
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deque.PushBack(uint64(i), i)
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back, isEnd := deque.Back()
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require.False(t, isEnd)
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require.Equal(t, back.Item, i)
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require.Equal(t, back.Idx, uint64(i))
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}
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// pops element from back of deque
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for i := 0; i < times; i++ {
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pair, isEnd := deque.Back()
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require.False(t, isEnd)
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require.Equal(t, pair.Item, times-i-1)
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require.Equal(t, pair.Idx, uint64(times-i-1))
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front, isEnd := deque.Front()
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require.False(t, isEnd)
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require.Zero(t, front.Item)
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require.Zero(t, front.Idx)
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err := deque.PopBack()
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require.NoError(t, err)
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}
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}
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