// Copyright 2018 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, // See the License for the specific language governing permissions and // limitations under the License. package aggfuncs_test import ( "time" . "github.com/pingcap/check" "github.com/pingcap/parser/ast" "github.com/pingcap/parser/mysql" "github.com/pingcap/tidb/types" "github.com/pingcap/tidb/types/json" ) func (s *testSuite) TestMergePartialResult4MaxMin(c *C) { elems := []string{"a", "b", "c", "d", "e"} enumA, _ := types.ParseEnumName(elems, "a", mysql.DefaultCollationName) enumC, _ := types.ParseEnumName(elems, "c", mysql.DefaultCollationName) enumE, _ := types.ParseEnumName(elems, "e", mysql.DefaultCollationName) setA, _ := types.ParseSetName(elems, "a", mysql.DefaultCollationName) // setA.Value == 1 setAB, _ := types.ParseSetName(elems, "a,b", mysql.DefaultCollationName) // setAB.Value == 3 setAC, _ := types.ParseSetName(elems, "a,c", mysql.DefaultCollationName) // setAC.Value == 5 unsignedType := types.NewFieldType(mysql.TypeLonglong) unsignedType.Flag |= mysql.UnsignedFlag tests := []aggTest{ buildAggTester(ast.AggFuncMax, mysql.TypeLonglong, 5, 4, 4, 4), buildAggTesterWithFieldType(ast.AggFuncMax, unsignedType, 5, 4, 4, 4), buildAggTester(ast.AggFuncMax, mysql.TypeFloat, 5, 4.0, 4.0, 4.0), buildAggTester(ast.AggFuncMax, mysql.TypeDouble, 5, 4.0, 4.0, 4.0), buildAggTester(ast.AggFuncMax, mysql.TypeNewDecimal, 5, types.NewDecFromInt(4), types.NewDecFromInt(4), types.NewDecFromInt(4)), buildAggTester(ast.AggFuncMax, mysql.TypeString, 5, "4", "4", "4"), buildAggTester(ast.AggFuncMax, mysql.TypeDate, 5, types.TimeFromDays(369), types.TimeFromDays(369), types.TimeFromDays(369)), buildAggTester(ast.AggFuncMax, mysql.TypeDuration, 5, types.Duration{Duration: time.Duration(4)}, types.Duration{Duration: time.Duration(4)}, types.Duration{Duration: time.Duration(4)}), buildAggTester(ast.AggFuncMax, mysql.TypeJSON, 5, json.CreateBinary(int64(4)), json.CreateBinary(int64(4)), json.CreateBinary(int64(4))), buildAggTester(ast.AggFuncMax, mysql.TypeEnum, 5, enumE, enumE, enumE), buildAggTester(ast.AggFuncMax, mysql.TypeSet, 5, setAC, setAC, setAC), buildAggTester(ast.AggFuncMin, mysql.TypeLonglong, 5, 0, 2, 0), buildAggTesterWithFieldType(ast.AggFuncMin, unsignedType, 5, 0, 2, 0), buildAggTester(ast.AggFuncMin, mysql.TypeFloat, 5, 0.0, 2.0, 0.0), buildAggTester(ast.AggFuncMin, mysql.TypeDouble, 5, 0.0, 2.0, 0.0), buildAggTester(ast.AggFuncMin, mysql.TypeNewDecimal, 5, types.NewDecFromInt(0), types.NewDecFromInt(2), types.NewDecFromInt(0)), buildAggTester(ast.AggFuncMin, mysql.TypeString, 5, "0", "2", "0"), buildAggTester(ast.AggFuncMin, mysql.TypeDate, 5, types.TimeFromDays(365), types.TimeFromDays(367), types.TimeFromDays(365)), buildAggTester(ast.AggFuncMin, mysql.TypeDuration, 5, types.Duration{Duration: time.Duration(0)}, types.Duration{Duration: time.Duration(2)}, types.Duration{Duration: time.Duration(0)}), buildAggTester(ast.AggFuncMin, mysql.TypeJSON, 5, json.CreateBinary(int64(0)), json.CreateBinary(int64(2)), json.CreateBinary(int64(0))), buildAggTester(ast.AggFuncMin, mysql.TypeEnum, 5, enumA, enumC, enumA), buildAggTester(ast.AggFuncMin, mysql.TypeSet, 5, setA, setAB, setA), } for _, test := range tests { s.testMergePartialResult(c, test) } } func (s *testSuite) TestMaxMin(c *C) { unsignedType := types.NewFieldType(mysql.TypeLonglong) unsignedType.Flag |= mysql.UnsignedFlag tests := []aggTest{ buildAggTester(ast.AggFuncMax, mysql.TypeLonglong, 5, nil, 4), buildAggTesterWithFieldType(ast.AggFuncMax, unsignedType, 5, nil, 4), buildAggTester(ast.AggFuncMax, mysql.TypeFloat, 5, nil, 4.0), buildAggTester(ast.AggFuncMax, mysql.TypeDouble, 5, nil, 4.0), buildAggTester(ast.AggFuncMax, mysql.TypeNewDecimal, 5, nil, types.NewDecFromInt(4)), buildAggTester(ast.AggFuncMax, mysql.TypeString, 5, nil, "4", "4"), buildAggTester(ast.AggFuncMax, mysql.TypeDate, 5, nil, types.TimeFromDays(369)), buildAggTester(ast.AggFuncMax, mysql.TypeDuration, 5, nil, types.Duration{Duration: time.Duration(4)}), buildAggTester(ast.AggFuncMax, mysql.TypeJSON, 5, nil, json.CreateBinary(int64(4))), buildAggTester(ast.AggFuncMin, mysql.TypeLonglong, 5, nil, 0), buildAggTesterWithFieldType(ast.AggFuncMin, unsignedType, 5, nil, 0), buildAggTester(ast.AggFuncMin, mysql.TypeFloat, 5, nil, 0.0), buildAggTester(ast.AggFuncMin, mysql.TypeDouble, 5, nil, 0.0), buildAggTester(ast.AggFuncMin, mysql.TypeNewDecimal, 5, nil, types.NewDecFromInt(0)), buildAggTester(ast.AggFuncMin, mysql.TypeString, 5, nil, "0"), buildAggTester(ast.AggFuncMin, mysql.TypeDate, 5, nil, types.TimeFromDays(365)), buildAggTester(ast.AggFuncMin, mysql.TypeDuration, 5, nil, types.Duration{Duration: time.Duration(0)}), buildAggTester(ast.AggFuncMin, mysql.TypeJSON, 5, nil, json.CreateBinary(int64(0))), } for _, test := range tests { s.testAggFunc(c, test) } }