215 lines
6.6 KiB
Go
215 lines
6.6 KiB
Go
// Copyright 2022 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 dbutil_test
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import (
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"fmt"
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"testing"
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"github.com/pingcap/tidb/pkg/parser"
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"github.com/pingcap/tidb/pkg/parser/model"
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"github.com/pingcap/tidb/pkg/parser/mysql"
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"github.com/pingcap/tidb/pkg/types"
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"github.com/pingcap/tidb/pkg/util/dbutil"
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"github.com/pingcap/tidb/pkg/util/dbutil/dbutiltest"
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"github.com/pingcap/tidb/pkg/util/schemacmp"
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"github.com/stretchr/testify/require"
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)
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type testCase struct {
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sql string
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columns []string
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indexs []string
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colLen [][]int
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colName string
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fineCol bool
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}
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func TestTable(t *testing.T) {
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testCases := []*testCase{
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{
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`
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CREATE TABLE htest (
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a int(11) PRIMARY KEY
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) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_bin
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`,
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[]string{"a"},
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[]string{mysql.PrimaryKeyName},
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[][]int{{types.UnspecifiedLength}},
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"c",
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false,
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}, {
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`
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CREATE TABLE itest (a int(11) NOT NULL,
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b double NOT NULL DEFAULT '2',
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c varchar(10) NOT NULL,
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d time DEFAULT NULL,
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PRIMARY KEY (a, b),
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UNIQUE KEY d (d))
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`,
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[]string{"a", "b", "c", "d"},
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[]string{mysql.PrimaryKeyName, "d"},
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[][]int{{types.UnspecifiedLength, types.UnspecifiedLength}, {types.UnspecifiedLength}},
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"a",
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true,
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}, {
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`
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CREATE TABLE jtest (
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a int(11) NOT NULL,
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b varchar(10) DEFAULT NULL,
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c varchar(255) DEFAULT NULL,
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PRIMARY KEY (a)
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) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_bin
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`,
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[]string{"a", "b", "c"},
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[]string{mysql.PrimaryKeyName},
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[][]int{{types.UnspecifiedLength}},
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"c",
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true,
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}, {
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`
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CREATE TABLE mtest (
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a int(24),
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KEY test (a))
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`,
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[]string{"a"},
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[]string{"test"},
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[][]int{{types.UnspecifiedLength}},
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"d",
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false,
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}, {
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`
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CREATE TABLE ntest (
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a int(24) PRIMARY KEY CLUSTERED
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)
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`,
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[]string{"a"},
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[]string{mysql.PrimaryKeyName},
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[][]int{{types.UnspecifiedLength}},
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"d",
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false,
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}, {
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`
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CREATE TABLE otest (
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a int(11) NOT NULL,
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b varchar(10) DEFAULT NULL,
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c varchar(255) DEFAULT NULL,
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PRIMARY KEY (a)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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`,
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[]string{"a", "b", "c"},
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[]string{mysql.PrimaryKeyName},
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[][]int{{types.UnspecifiedLength}},
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"c",
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true,
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},
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}
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for _, testCase := range testCases {
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tableInfo, err := dbutiltest.GetTableInfoBySQL(testCase.sql, parser.New())
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require.NoError(t, err)
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for i, column := range tableInfo.Columns {
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require.Equal(t, column.Name.O, testCase.columns[i])
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}
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require.Len(t, tableInfo.Indices, len(testCase.indexs))
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for j, index := range tableInfo.Indices {
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require.Equal(t, index.Name.O, testCase.indexs[j])
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for k, indexCol := range index.Columns {
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require.Equal(t, testCase.colLen[j][k], indexCol.Length)
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}
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}
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col := dbutil.FindColumnByName(tableInfo.Columns, testCase.colName)
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require.Equal(t, col != nil, testCase.fineCol)
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}
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}
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// EqualTableInfo returns true if this two table info have same columns and indices
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func EqualTableInfo(tableInfo1, tableInfo2 *model.TableInfo) (bool, string) {
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// check columns
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if len(tableInfo1.Columns) != len(tableInfo2.Columns) {
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return false, fmt.Sprintf("column num not equal, one is %d another is %d", len(tableInfo1.Columns), len(tableInfo2.Columns))
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}
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for j, col := range tableInfo1.Columns {
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if col.Name.O != tableInfo2.Columns[j].Name.O {
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return false, fmt.Sprintf("column name not equal, one is %s another is %s", col.Name.O, tableInfo2.Columns[j].Name.O)
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}
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if col.GetType() != tableInfo2.Columns[j].GetType() {
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return false, fmt.Sprintf("column %s's type not equal, one is %v another is %v", col.Name.O, col.GetType(), tableInfo2.Columns[j].GetType())
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}
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}
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// check index
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if len(tableInfo1.Indices) != len(tableInfo2.Indices) {
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return false, fmt.Sprintf("index num not equal, one is %d another is %d", len(tableInfo1.Indices), len(tableInfo2.Indices))
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}
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index2Map := make(map[string]*model.IndexInfo)
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for _, index := range tableInfo2.Indices {
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index2Map[index.Name.O] = index
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}
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for _, index1 := range tableInfo1.Indices {
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index2, ok := index2Map[index1.Name.O]
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if !ok {
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return false, fmt.Sprintf("index %s not exists", index1.Name.O)
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}
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if len(index1.Columns) != len(index2.Columns) {
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return false, fmt.Sprintf("index %s's columns num not equal, one is %d another is %d", index1.Name.O, len(index1.Columns), len(index2.Columns))
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}
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for j, col := range index1.Columns {
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if col.Name.O != index2.Columns[j].Name.O {
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return false, fmt.Sprintf("index %s's column not equal, one has %s another has %s", index1.Name.O, col.Name.O, index2.Columns[j].Name.O)
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}
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}
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}
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return true, ""
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}
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func TestTableStructEqual(t *testing.T) {
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createTableSQL1 := "CREATE TABLE `test`.`atest` (`id` int(24), `name` varchar(24), `birthday` datetime, `update_time` time, `money` decimal(20,2), primary key(`id`))"
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tableInfo1, err := dbutiltest.GetTableInfoBySQL(createTableSQL1, parser.New())
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require.NoError(t, err)
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createTableSQL2 := "CREATE TABLE `test`.`atest` (`id` int(24) NOT NULL, `name` varchar(24), `birthday` datetime, `update_time` time, `money` decimal(20,2), primary key(`id`))"
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tableInfo2, err := dbutiltest.GetTableInfoBySQL(createTableSQL2, parser.New())
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require.NoError(t, err)
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createTableSQL3 := `CREATE TABLE "test"."atest" ("id" int(24), "name" varchar(24), "birthday" datetime, "update_time" time, "money" decimal(20,2), unique key("id"))`
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p := parser.New()
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p.SetSQLMode(mysql.ModeANSIQuotes)
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tableInfo3, err := dbutiltest.GetTableInfoBySQL(createTableSQL3, p)
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require.NoError(t, err)
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equal, _ := EqualTableInfo(tableInfo1, tableInfo2)
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require.Equal(t, true, equal)
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equal, _ = EqualTableInfo(tableInfo1, tableInfo3)
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require.Equal(t, false, equal)
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}
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func TestSchemacmpEncode(t *testing.T) {
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createTableSQL := "CREATE TABLE `test`.`atest` (`id` int(24), primary key(`id`))"
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tableInfo, err := dbutiltest.GetTableInfoBySQL(createTableSQL, parser.New())
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require.NoError(t, err)
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table := schemacmp.Encode(tableInfo)
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require.Equal(t, "CREATE TABLE `tbl`(`id` INT(24) NOT NULL, PRIMARY KEY (`id`)) CHARSET UTF8MB4 COLLATE UTF8MB4_BIN", table.String())
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}
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