166 lines
7.8 KiB
Go
166 lines
7.8 KiB
Go
// Copyright 2019 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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"testing"
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"github.com/pingcap/tidb/executor/aggfuncs"
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"github.com/pingcap/tidb/expression"
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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/types"
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)
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func TestLeadLag(t *testing.T) {
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zero := expression.NewZero()
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one := expression.NewOne()
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two := &expression.Constant{
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Value: types.NewDatum(2),
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RetType: types.NewFieldType(mysql.TypeTiny),
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}
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three := &expression.Constant{
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Value: types.NewDatum(3),
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RetType: types.NewFieldType(mysql.TypeTiny),
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}
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million := &expression.Constant{
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Value: types.NewDatum(1000000),
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RetType: types.NewFieldType(mysql.TypeLong),
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}
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defaultArg := &expression.Column{RetType: types.NewFieldType(mysql.TypeLonglong), Index: 0}
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numRows := 3
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tests := []windowTest{
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// lag(field0, N)
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buildWindowTesterWithArgs(ast.WindowFuncLag, mysql.TypeLonglong,
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[]expression.Expression{zero}, 0, numRows, 0, 1, 2),
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buildWindowTesterWithArgs(ast.WindowFuncLag, mysql.TypeLonglong,
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[]expression.Expression{one}, 0, numRows, nil, 0, 1),
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buildWindowTesterWithArgs(ast.WindowFuncLag, mysql.TypeLonglong,
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[]expression.Expression{two}, 0, numRows, nil, nil, 0),
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buildWindowTesterWithArgs(ast.WindowFuncLag, mysql.TypeLonglong,
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[]expression.Expression{three}, 0, numRows, nil, nil, nil),
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buildWindowTesterWithArgs(ast.WindowFuncLag, mysql.TypeLonglong,
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[]expression.Expression{million}, 0, numRows, nil, nil, nil),
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// lag(field0, N, 1000000)
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buildWindowTesterWithArgs(ast.WindowFuncLag, mysql.TypeLonglong,
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[]expression.Expression{zero, million}, 0, numRows, 0, 1, 2),
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buildWindowTesterWithArgs(ast.WindowFuncLag, mysql.TypeLonglong,
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[]expression.Expression{one, million}, 0, numRows, 1000000, 0, 1),
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buildWindowTesterWithArgs(ast.WindowFuncLag, mysql.TypeLonglong,
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[]expression.Expression{two, million}, 0, numRows, 1000000, 1000000, 0),
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buildWindowTesterWithArgs(ast.WindowFuncLag, mysql.TypeLonglong,
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[]expression.Expression{three, million}, 0, numRows, 1000000, 1000000, 1000000),
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buildWindowTesterWithArgs(ast.WindowFuncLag, mysql.TypeLonglong,
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[]expression.Expression{million, million}, 0, numRows, 1000000, 1000000, 1000000),
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// lag(field0, N, field0)
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buildWindowTesterWithArgs(ast.WindowFuncLag, mysql.TypeLonglong,
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[]expression.Expression{zero, defaultArg}, 0, numRows, 0, 1, 2),
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buildWindowTesterWithArgs(ast.WindowFuncLag, mysql.TypeLonglong,
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[]expression.Expression{one, defaultArg}, 0, numRows, 0, 0, 1),
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buildWindowTesterWithArgs(ast.WindowFuncLag, mysql.TypeLonglong,
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[]expression.Expression{two, defaultArg}, 0, numRows, 0, 1, 0),
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buildWindowTesterWithArgs(ast.WindowFuncLag, mysql.TypeLonglong,
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[]expression.Expression{three, defaultArg}, 0, numRows, 0, 1, 2),
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buildWindowTesterWithArgs(ast.WindowFuncLag, mysql.TypeLonglong,
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[]expression.Expression{million, defaultArg}, 0, numRows, 0, 1, 2),
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// lead(field0, N)
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buildWindowTesterWithArgs(ast.WindowFuncLead, mysql.TypeLonglong,
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[]expression.Expression{zero}, 0, numRows, 0, 1, 2),
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buildWindowTesterWithArgs(ast.WindowFuncLead, mysql.TypeLonglong,
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[]expression.Expression{one}, 0, numRows, 1, 2, nil),
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buildWindowTesterWithArgs(ast.WindowFuncLead, mysql.TypeLonglong,
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[]expression.Expression{two}, 0, numRows, 2, nil, nil),
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buildWindowTesterWithArgs(ast.WindowFuncLead, mysql.TypeLonglong,
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[]expression.Expression{three}, 0, numRows, nil, nil, nil),
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buildWindowTesterWithArgs(ast.WindowFuncLead, mysql.TypeLonglong,
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[]expression.Expression{million}, 0, numRows, nil, nil, nil),
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// lead(field0, N, 1000000)
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buildWindowTesterWithArgs(ast.WindowFuncLead, mysql.TypeLonglong,
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[]expression.Expression{zero, million}, 0, numRows, 0, 1, 2),
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buildWindowTesterWithArgs(ast.WindowFuncLead, mysql.TypeLonglong,
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[]expression.Expression{one, million}, 0, numRows, 1, 2, 1000000),
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buildWindowTesterWithArgs(ast.WindowFuncLead, mysql.TypeLonglong,
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[]expression.Expression{two, million}, 0, numRows, 2, 1000000, 1000000),
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buildWindowTesterWithArgs(ast.WindowFuncLead, mysql.TypeLonglong,
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[]expression.Expression{three, million}, 0, numRows, 1000000, 1000000, 1000000),
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buildWindowTesterWithArgs(ast.WindowFuncLead, mysql.TypeLonglong,
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[]expression.Expression{million, million}, 0, numRows, 1000000, 1000000, 1000000),
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// lead(field0, N, field0)
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buildWindowTesterWithArgs(ast.WindowFuncLead, mysql.TypeLonglong,
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[]expression.Expression{zero, defaultArg}, 0, numRows, 0, 1, 2),
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buildWindowTesterWithArgs(ast.WindowFuncLead, mysql.TypeLonglong,
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[]expression.Expression{one, defaultArg}, 0, numRows, 1, 2, 2),
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buildWindowTesterWithArgs(ast.WindowFuncLead, mysql.TypeLonglong,
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[]expression.Expression{two, defaultArg}, 0, numRows, 2, 1, 2),
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buildWindowTesterWithArgs(ast.WindowFuncLead, mysql.TypeLonglong,
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[]expression.Expression{three, defaultArg}, 0, numRows, 0, 1, 2),
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buildWindowTesterWithArgs(ast.WindowFuncLead, mysql.TypeLonglong,
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[]expression.Expression{million, defaultArg}, 0, numRows, 0, 1, 2),
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}
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for _, test := range tests {
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testWindowFunc(t, test)
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}
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}
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func TestMemLeadLag(t *testing.T) {
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zero := expression.NewZero()
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one := expression.NewOne()
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two := &expression.Constant{
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Value: types.NewDatum(2),
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RetType: types.NewFieldType(mysql.TypeTiny),
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}
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three := &expression.Constant{
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Value: types.NewDatum(3),
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RetType: types.NewFieldType(mysql.TypeTiny),
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}
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million := &expression.Constant{
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Value: types.NewDatum(1000000),
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RetType: types.NewFieldType(mysql.TypeLong),
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}
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numRows := 3
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tests := []windowMemTest{
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// lag(field0, N)
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buildWindowMemTesterWithArgs(ast.WindowFuncLag, mysql.TypeLonglong,
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[]expression.Expression{zero}, 0, numRows, aggfuncs.DefPartialResult4LeadLagSize, rowMemDeltaGens),
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buildWindowMemTesterWithArgs(ast.WindowFuncLag, mysql.TypeLonglong,
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[]expression.Expression{one}, 0, numRows, aggfuncs.DefPartialResult4LeadLagSize, rowMemDeltaGens),
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buildWindowMemTesterWithArgs(ast.WindowFuncLag, mysql.TypeLonglong,
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[]expression.Expression{two}, 0, numRows, aggfuncs.DefPartialResult4LeadLagSize, rowMemDeltaGens),
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buildWindowMemTesterWithArgs(ast.WindowFuncLag, mysql.TypeLonglong,
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[]expression.Expression{three}, 0, numRows, aggfuncs.DefPartialResult4LeadLagSize, rowMemDeltaGens),
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buildWindowMemTesterWithArgs(ast.WindowFuncLag, mysql.TypeLonglong,
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[]expression.Expression{million}, 0, numRows, aggfuncs.DefPartialResult4LeadLagSize, rowMemDeltaGens),
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// lead(field0, N)
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buildWindowMemTesterWithArgs(ast.WindowFuncLead, mysql.TypeLonglong,
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[]expression.Expression{zero}, 0, numRows, aggfuncs.DefPartialResult4LeadLagSize, rowMemDeltaGens),
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buildWindowMemTesterWithArgs(ast.WindowFuncLead, mysql.TypeLonglong,
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[]expression.Expression{one}, 0, numRows, aggfuncs.DefPartialResult4LeadLagSize, rowMemDeltaGens),
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buildWindowMemTesterWithArgs(ast.WindowFuncLead, mysql.TypeLonglong,
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[]expression.Expression{two}, 0, numRows, aggfuncs.DefPartialResult4LeadLagSize, rowMemDeltaGens),
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buildWindowMemTesterWithArgs(ast.WindowFuncLead, mysql.TypeLonglong,
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[]expression.Expression{three}, 0, numRows, aggfuncs.DefPartialResult4LeadLagSize, rowMemDeltaGens),
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buildWindowMemTesterWithArgs(ast.WindowFuncLead, mysql.TypeLonglong,
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[]expression.Expression{million}, 0, numRows, aggfuncs.DefPartialResult4LeadLagSize, rowMemDeltaGens),
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}
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for _, test := range tests {
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testWindowAggMemFunc(t, test)
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}
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}
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