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1259 lines
46 KiB
1259 lines
46 KiB
// Copyright 2013 The ql Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSES/QL-LICENSE file.
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// Copyright 2015 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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// See the License for the specific language governing permissions and
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// limitations under the License.
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package session
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import (
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"context"
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"encoding/hex"
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"fmt"
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"runtime/debug"
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"strconv"
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"strings"
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"time"
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"github.com/pingcap/errors"
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"github.com/pingcap/parser/auth"
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"github.com/pingcap/parser/mysql"
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"github.com/pingcap/parser/terror"
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"github.com/pingcap/tidb/config"
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"github.com/pingcap/tidb/ddl"
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"github.com/pingcap/tidb/domain"
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"github.com/pingcap/tidb/infoschema"
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"github.com/pingcap/tidb/planner/core"
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"github.com/pingcap/tidb/sessionctx/variable"
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"github.com/pingcap/tidb/util/chunk"
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"github.com/pingcap/tidb/util/logutil"
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"github.com/pingcap/tidb/util/timeutil"
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"go.uber.org/zap"
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)
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const (
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// CreateUserTable is the SQL statement creates User table in system db.
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CreateUserTable = `CREATE TABLE if not exists mysql.user (
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Host CHAR(64),
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User CHAR(32),
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authentication_string TEXT,
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Select_priv ENUM('N','Y') NOT NULL DEFAULT 'N',
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Insert_priv ENUM('N','Y') NOT NULL DEFAULT 'N',
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Update_priv ENUM('N','Y') NOT NULL DEFAULT 'N',
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Delete_priv ENUM('N','Y') NOT NULL DEFAULT 'N',
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Create_priv ENUM('N','Y') NOT NULL DEFAULT 'N',
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Drop_priv ENUM('N','Y') NOT NULL DEFAULT 'N',
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Process_priv ENUM('N','Y') NOT NULL DEFAULT 'N',
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Grant_priv ENUM('N','Y') NOT NULL DEFAULT 'N',
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References_priv ENUM('N','Y') NOT NULL DEFAULT 'N',
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Alter_priv ENUM('N','Y') NOT NULL DEFAULT 'N',
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Show_db_priv ENUM('N','Y') NOT NULL DEFAULT 'N',
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Super_priv ENUM('N','Y') NOT NULL DEFAULT 'N',
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Create_tmp_table_priv ENUM('N','Y') NOT NULL DEFAULT 'N',
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Lock_tables_priv ENUM('N','Y') NOT NULL DEFAULT 'N',
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Execute_priv ENUM('N','Y') NOT NULL DEFAULT 'N',
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Create_view_priv ENUM('N','Y') NOT NULL DEFAULT 'N',
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Show_view_priv ENUM('N','Y') NOT NULL DEFAULT 'N',
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Create_routine_priv ENUM('N','Y') NOT NULL DEFAULT 'N',
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Alter_routine_priv ENUM('N','Y') NOT NULL DEFAULT 'N',
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Index_priv ENUM('N','Y') NOT NULL DEFAULT 'N',
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Create_user_priv ENUM('N','Y') NOT NULL DEFAULT 'N',
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Event_priv ENUM('N','Y') NOT NULL DEFAULT 'N',
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Trigger_priv ENUM('N','Y') NOT NULL DEFAULT 'N',
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Create_role_priv ENUM('N','Y') NOT NULL DEFAULT 'N',
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Drop_role_priv ENUM('N','Y') NOT NULL DEFAULT 'N',
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Account_locked ENUM('N','Y') NOT NULL DEFAULT 'N',
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Shutdown_priv ENUM('N','Y') NOT NULL DEFAULT 'N',
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Reload_priv ENUM('N','Y') NOT NULL DEFAULT 'N',
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FILE_priv ENUM('N','Y') NOT NULL DEFAULT 'N',
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Config_priv ENUM('N','Y') NOT NULL DEFAULT 'N',
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PRIMARY KEY (Host, User));`
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// CreateGlobalPrivTable is the SQL statement creates Global scope privilege table in system db.
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CreateGlobalPrivTable = "CREATE TABLE if not exists mysql.global_priv (" +
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"Host char(60) NOT NULL DEFAULT ''," +
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"User char(80) NOT NULL DEFAULT ''," +
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"Priv longtext NOT NULL DEFAULT ''," +
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"PRIMARY KEY (Host, User)" +
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")"
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// CreateDBPrivTable is the SQL statement creates DB scope privilege table in system db.
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CreateDBPrivTable = `CREATE TABLE if not exists mysql.db (
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Host CHAR(60),
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DB CHAR(64),
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User CHAR(32),
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Select_priv ENUM('N','Y') Not Null DEFAULT 'N',
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Insert_priv ENUM('N','Y') Not Null DEFAULT 'N',
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Update_priv ENUM('N','Y') Not Null DEFAULT 'N',
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Delete_priv ENUM('N','Y') Not Null DEFAULT 'N',
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Create_priv ENUM('N','Y') Not Null DEFAULT 'N',
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Drop_priv ENUM('N','Y') Not Null DEFAULT 'N',
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Grant_priv ENUM('N','Y') Not Null DEFAULT 'N',
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References_priv ENUM('N','Y') Not Null DEFAULT 'N',
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Index_priv ENUM('N','Y') Not Null DEFAULT 'N',
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Alter_priv ENUM('N','Y') Not Null DEFAULT 'N',
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Create_tmp_table_priv ENUM('N','Y') NOT NULL DEFAULT 'N',
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Lock_tables_priv ENUM('N','Y') NOT NULL DEFAULT 'N',
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Create_view_priv ENUM('N','Y') NOT NULL DEFAULT 'N',
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Show_view_priv ENUM('N','Y') NOT NULL DEFAULT 'N',
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Create_routine_priv ENUM('N','Y') NOT NULL DEFAULT 'N',
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Alter_routine_priv ENUM('N','Y') NOT NULL DEFAULT 'N',
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Execute_priv ENUM('N','Y') Not Null DEFAULT 'N',
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Event_priv ENUM('N','Y') NOT NULL DEFAULT 'N',
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Trigger_priv ENUM('N','Y') NOT NULL DEFAULT 'N',
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PRIMARY KEY (Host, DB, User));`
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// CreateTablePrivTable is the SQL statement creates table scope privilege table in system db.
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CreateTablePrivTable = `CREATE TABLE if not exists mysql.tables_priv (
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Host CHAR(60),
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DB CHAR(64),
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User CHAR(32),
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Table_name CHAR(64),
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Grantor CHAR(77),
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Timestamp Timestamp DEFAULT CURRENT_TIMESTAMP,
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Table_priv SET('Select','Insert','Update','Delete','Create','Drop','Grant','Index','Alter','Create View','Show View','Trigger','References'),
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Column_priv SET('Select','Insert','Update'),
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PRIMARY KEY (Host, DB, User, Table_name));`
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// CreateColumnPrivTable is the SQL statement creates column scope privilege table in system db.
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CreateColumnPrivTable = `CREATE TABLE if not exists mysql.columns_priv(
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Host CHAR(60),
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DB CHAR(64),
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User CHAR(32),
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Table_name CHAR(64),
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Column_name CHAR(64),
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Timestamp Timestamp DEFAULT CURRENT_TIMESTAMP,
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Column_priv SET('Select','Insert','Update'),
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PRIMARY KEY (Host, DB, User, Table_name, Column_name));`
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// CreateGlobalVariablesTable is the SQL statement creates global variable table in system db.
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// TODO: MySQL puts GLOBAL_VARIABLES table in INFORMATION_SCHEMA db.
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// INFORMATION_SCHEMA is a virtual db in TiDB. So we put this table in system db.
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// Maybe we will put it back to INFORMATION_SCHEMA.
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CreateGlobalVariablesTable = `CREATE TABLE if not exists mysql.GLOBAL_VARIABLES(
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VARIABLE_NAME VARCHAR(64) Not Null PRIMARY KEY,
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VARIABLE_VALUE VARCHAR(1024) DEFAULT Null);`
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// CreateTiDBTable is the SQL statement creates a table in system db.
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// This table is a key-value struct contains some information used by TiDB.
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// Currently we only put bootstrapped in it which indicates if the system is already bootstrapped.
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CreateTiDBTable = `CREATE TABLE if not exists mysql.tidb(
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VARIABLE_NAME VARCHAR(64) Not Null PRIMARY KEY,
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VARIABLE_VALUE VARCHAR(1024) DEFAULT Null,
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COMMENT VARCHAR(1024));`
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// CreateHelpTopic is the SQL statement creates help_topic table in system db.
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// See: https://dev.mysql.com/doc/refman/5.5/en/system-database.html#system-database-help-tables
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CreateHelpTopic = `CREATE TABLE if not exists mysql.help_topic (
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help_topic_id int(10) unsigned NOT NULL,
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name char(64) NOT NULL,
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help_category_id smallint(5) unsigned NOT NULL,
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description text NOT NULL,
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example text NOT NULL,
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url text NOT NULL,
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PRIMARY KEY (help_topic_id),
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UNIQUE KEY name (name)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8 STATS_PERSISTENT=0 COMMENT='help topics';`
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// CreateStatsMetaTable stores the meta of table statistics.
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CreateStatsMetaTable = `CREATE TABLE if not exists mysql.stats_meta (
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version bigint(64) unsigned NOT NULL,
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table_id bigint(64) NOT NULL,
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modify_count bigint(64) NOT NULL DEFAULT 0,
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count bigint(64) unsigned NOT NULL DEFAULT 0,
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index idx_ver(version),
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unique index tbl(table_id)
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);`
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// CreateStatsColsTable stores the statistics of table columns.
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CreateStatsColsTable = `CREATE TABLE if not exists mysql.stats_histograms (
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table_id bigint(64) NOT NULL,
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is_index tinyint(2) NOT NULL,
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hist_id bigint(64) NOT NULL,
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distinct_count bigint(64) NOT NULL,
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null_count bigint(64) NOT NULL DEFAULT 0,
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tot_col_size bigint(64) NOT NULL DEFAULT 0,
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modify_count bigint(64) NOT NULL DEFAULT 0,
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version bigint(64) unsigned NOT NULL DEFAULT 0,
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cm_sketch blob(6291456),
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stats_ver bigint(64) NOT NULL DEFAULT 0,
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flag bigint(64) NOT NULL DEFAULT 0,
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correlation double NOT NULL DEFAULT 0,
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last_analyze_pos blob DEFAULT NULL,
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unique index tbl(table_id, is_index, hist_id)
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);`
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// CreateStatsBucketsTable stores the histogram info for every table columns.
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CreateStatsBucketsTable = `CREATE TABLE if not exists mysql.stats_buckets (
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table_id bigint(64) NOT NULL,
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is_index tinyint(2) NOT NULL,
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hist_id bigint(64) NOT NULL,
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bucket_id bigint(64) NOT NULL,
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count bigint(64) NOT NULL,
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repeats bigint(64) NOT NULL,
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upper_bound blob NOT NULL,
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lower_bound blob ,
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unique index tbl(table_id, is_index, hist_id, bucket_id)
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);`
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// CreateGCDeleteRangeTable stores schemas which can be deleted by DeleteRange.
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CreateGCDeleteRangeTable = `CREATE TABLE IF NOT EXISTS mysql.gc_delete_range (
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job_id BIGINT NOT NULL COMMENT "the DDL job ID",
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element_id BIGINT NOT NULL COMMENT "the schema element ID",
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start_key VARCHAR(255) NOT NULL COMMENT "encoded in hex",
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end_key VARCHAR(255) NOT NULL COMMENT "encoded in hex",
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ts BIGINT NOT NULL COMMENT "timestamp in uint64",
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UNIQUE KEY delete_range_index (job_id, element_id)
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);`
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// CreateGCDeleteRangeDoneTable stores schemas which are already deleted by DeleteRange.
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CreateGCDeleteRangeDoneTable = `CREATE TABLE IF NOT EXISTS mysql.gc_delete_range_done (
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job_id BIGINT NOT NULL COMMENT "the DDL job ID",
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element_id BIGINT NOT NULL COMMENT "the schema element ID",
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start_key VARCHAR(255) NOT NULL COMMENT "encoded in hex",
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end_key VARCHAR(255) NOT NULL COMMENT "encoded in hex",
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ts BIGINT NOT NULL COMMENT "timestamp in uint64",
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UNIQUE KEY delete_range_done_index (job_id, element_id)
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);`
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// CreateStatsFeedbackTable stores the feedback info which is used to update stats.
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CreateStatsFeedbackTable = `CREATE TABLE IF NOT EXISTS mysql.stats_feedback (
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table_id bigint(64) NOT NULL,
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is_index tinyint(2) NOT NULL,
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hist_id bigint(64) NOT NULL,
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feedback blob NOT NULL,
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index hist(table_id, is_index, hist_id)
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);`
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// CreateBindInfoTable stores the sql bind info which is used to update globalBindCache.
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CreateBindInfoTable = `CREATE TABLE IF NOT EXISTS mysql.bind_info (
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original_sql text NOT NULL ,
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bind_sql text NOT NULL ,
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default_db text NOT NULL,
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status text NOT NULL,
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create_time timestamp(3) NOT NULL,
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update_time timestamp(3) NOT NULL,
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charset text NOT NULL,
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collation text NOT NULL,
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source varchar(10) NOT NULL default 'unknown',
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INDEX sql_index(original_sql(1024),default_db(1024)) COMMENT "accelerate the speed when add global binding query",
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INDEX time_index(update_time) COMMENT "accelerate the speed when querying with last update time"
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin;`
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// CreateRoleEdgesTable stores the role and user relationship information.
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CreateRoleEdgesTable = `CREATE TABLE IF NOT EXISTS mysql.role_edges (
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FROM_HOST char(60) COLLATE utf8_bin NOT NULL DEFAULT '',
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FROM_USER char(32) COLLATE utf8_bin NOT NULL DEFAULT '',
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TO_HOST char(60) COLLATE utf8_bin NOT NULL DEFAULT '',
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TO_USER char(32) COLLATE utf8_bin NOT NULL DEFAULT '',
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WITH_ADMIN_OPTION enum('N','Y') CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT 'N',
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PRIMARY KEY (FROM_HOST,FROM_USER,TO_HOST,TO_USER)
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);`
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// CreateDefaultRolesTable stores the active roles for a user.
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CreateDefaultRolesTable = `CREATE TABLE IF NOT EXISTS mysql.default_roles (
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HOST char(60) COLLATE utf8_bin NOT NULL DEFAULT '',
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USER char(32) COLLATE utf8_bin NOT NULL DEFAULT '',
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DEFAULT_ROLE_HOST char(60) COLLATE utf8_bin NOT NULL DEFAULT '%',
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DEFAULT_ROLE_USER char(32) COLLATE utf8_bin NOT NULL DEFAULT '',
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PRIMARY KEY (HOST,USER,DEFAULT_ROLE_HOST,DEFAULT_ROLE_USER)
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)`
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// CreateStatsTopNTable stores topn data of a cmsketch with top n.
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CreateStatsTopNTable = `CREATE TABLE if not exists mysql.stats_top_n (
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table_id bigint(64) NOT NULL,
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is_index tinyint(2) NOT NULL,
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hist_id bigint(64) NOT NULL,
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value longblob,
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count bigint(64) UNSIGNED NOT NULL,
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index tbl(table_id, is_index, hist_id)
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);`
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// CreateExprPushdownBlacklist stores the expressions which are not allowed to be pushed down.
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CreateExprPushdownBlacklist = `CREATE TABLE IF NOT EXISTS mysql.expr_pushdown_blacklist (
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name char(100) NOT NULL,
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store_type char(100) NOT NULL DEFAULT 'tikv,tiflash,tidb',
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reason varchar(200)
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);`
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// CreateOptRuleBlacklist stores the list of disabled optimizing operations.
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CreateOptRuleBlacklist = `CREATE TABLE IF NOT EXISTS mysql.opt_rule_blacklist (
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name char(100) NOT NULL
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);`
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)
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// bootstrap initiates system DB for a store.
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func bootstrap(s Session) {
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startTime := time.Now()
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dom := domain.GetDomain(s)
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for {
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b, err := checkBootstrapped(s)
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if err != nil {
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logutil.BgLogger().Fatal("check bootstrap error",
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zap.Error(err))
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}
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// For rolling upgrade, we can't do upgrade only in the owner.
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if b {
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upgrade(s)
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logutil.BgLogger().Info("upgrade successful in bootstrap",
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zap.Duration("take time", time.Since(startTime)))
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return
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}
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// To reduce conflict when multiple TiDB-server start at the same time.
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// Actually only one server need to do the bootstrap. So we chose DDL owner to do this.
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if dom.DDL().OwnerManager().IsOwner() {
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doDDLWorks(s)
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doDMLWorks(s)
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logutil.BgLogger().Info("bootstrap successful",
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zap.Duration("take time", time.Since(startTime)))
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return
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}
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time.Sleep(200 * time.Millisecond)
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}
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}
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const (
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// varTrue is the true value in mysql.TiDB table for boolean columns.
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varTrue = "True"
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// varFalse is the false value in mysql.TiDB table for boolean columns.
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varFalse = "False"
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// The variable name in mysql.TiDB table.
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// It is used for checking if the store is bootstrapped by any TiDB server.
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// If the value is `True`, the store is already bootstrapped by a TiDB server.
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bootstrappedVar = "bootstrapped"
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// The variable name in mysql.TiDB table.
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// It is used for getting the version of the TiDB server which bootstrapped the store.
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tidbServerVersionVar = "tidb_server_version"
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// The variable name in mysql.tidb table and it will be used when we want to know
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// system timezone.
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tidbSystemTZ = "system_tz"
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// The variable name in mysql.tidb table and it will indicate if the new collations are enabled in the TiDB cluster.
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tidbNewCollationEnabled = "new_collation_enabled"
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// The variable name in mysql.tidb table and it records the default value of
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// mem-quota-query when upgrade from v3.0.x to v4.0.9+.
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tidbDefMemoryQuotaQuery = "default_memory_quota_query"
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// Const for TiDB server version 2.
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version2 = 2
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version3 = 3
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version4 = 4
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version5 = 5
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version6 = 6
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version7 = 7
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version8 = 8
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version9 = 9
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version10 = 10
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version11 = 11
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version12 = 12
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version13 = 13
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version14 = 14
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version15 = 15
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version16 = 16
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version17 = 17
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version18 = 18
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version19 = 19
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version20 = 20
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version21 = 21
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version22 = 22
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version23 = 23
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version24 = 24
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version25 = 25
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version26 = 26
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version27 = 27
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version28 = 28
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// version29 is not needed.
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version30 = 30
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version31 = 31
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version32 = 32
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version33 = 33
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version34 = 34
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version35 = 35
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version36 = 36
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version37 = 37
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version38 = 38
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version39 = 39
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// version40 is the version that introduce new collation in TiDB,
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// see https://github.com/pingcap/tidb/pull/14574 for more details.
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version40 = 40
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version41 = 41
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// version42 add storeType and reason column in expr_pushdown_blacklist
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version42 = 42
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// version43 updates global variables related to statement summary.
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version43 = 43
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// version44 delete tidb_isolation_read_engines from mysql.global_variables to avoid unexpected behavior after upgrade.
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version44 = 44
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// version45 introduces CONFIG_PRIV for SET CONFIG statements.
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version45 = 45
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// version46 fix a bug in v3.1.1.
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version46 = 46
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// version47 add Source to bindings to indicate the way binding created.
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version47 = 47
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// version48 change mysql.stats_histograms cm_sketch column from blob to blob(6291456)
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version48 = 48
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// version49 writes a variable `mem_quota_query` to mysql.tidb if it's a cluster upgraded from v3.0.x to v4.0.9.
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version49 = 49
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)
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var (
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bootstrapVersion = []func(Session, int64){
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upgradeToVer2,
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upgradeToVer3,
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upgradeToVer4,
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upgradeToVer5,
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upgradeToVer6,
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upgradeToVer7,
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upgradeToVer8,
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upgradeToVer9,
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upgradeToVer10,
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upgradeToVer11,
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upgradeToVer12,
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upgradeToVer13,
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upgradeToVer14,
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upgradeToVer15,
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upgradeToVer16,
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upgradeToVer17,
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upgradeToVer18,
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upgradeToVer19,
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upgradeToVer20,
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upgradeToVer21,
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upgradeToVer22,
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upgradeToVer23,
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upgradeToVer24,
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upgradeToVer25,
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upgradeToVer26,
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upgradeToVer27,
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upgradeToVer28,
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upgradeToVer29,
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upgradeToVer30,
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upgradeToVer31,
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upgradeToVer32,
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upgradeToVer33,
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upgradeToVer34,
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upgradeToVer35,
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upgradeToVer36,
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upgradeToVer37,
|
|
upgradeToVer38,
|
|
upgradeToVer39,
|
|
upgradeToVer40,
|
|
upgradeToVer41,
|
|
upgradeToVer42,
|
|
upgradeToVer43,
|
|
upgradeToVer44,
|
|
upgradeToVer45,
|
|
upgradeToVer46,
|
|
upgradeToVer47,
|
|
upgradeToVer48,
|
|
upgradeToVer49,
|
|
}
|
|
)
|
|
|
|
func checkBootstrapped(s Session) (bool, error) {
|
|
// Check if system db exists.
|
|
_, err := s.Execute(context.Background(), fmt.Sprintf("USE %s;", mysql.SystemDB))
|
|
if err != nil && infoschema.ErrDatabaseNotExists.NotEqual(err) {
|
|
logutil.BgLogger().Fatal("check bootstrap error",
|
|
zap.Error(err))
|
|
}
|
|
// Check bootstrapped variable value in TiDB table.
|
|
sVal, _, err := getTiDBVar(s, bootstrappedVar)
|
|
if err != nil {
|
|
if infoschema.ErrTableNotExists.Equal(err) {
|
|
return false, nil
|
|
}
|
|
return false, errors.Trace(err)
|
|
}
|
|
isBootstrapped := sVal == varTrue
|
|
if isBootstrapped {
|
|
// Make sure that doesn't affect the following operations.
|
|
if err = s.CommitTxn(context.Background()); err != nil {
|
|
return false, errors.Trace(err)
|
|
}
|
|
}
|
|
return isBootstrapped, nil
|
|
}
|
|
|
|
// getTiDBVar gets variable value from mysql.tidb table.
|
|
// Those variables are used by TiDB server.
|
|
func getTiDBVar(s Session, name string) (sVal string, isNull bool, e error) {
|
|
sql := fmt.Sprintf(`SELECT HIGH_PRIORITY VARIABLE_VALUE FROM %s.%s WHERE VARIABLE_NAME="%s"`,
|
|
mysql.SystemDB, mysql.TiDBTable, name)
|
|
ctx := context.Background()
|
|
rs, err := s.Execute(ctx, sql)
|
|
if err != nil {
|
|
return "", true, errors.Trace(err)
|
|
}
|
|
if len(rs) != 1 {
|
|
return "", true, errors.New("Wrong number of Recordset")
|
|
}
|
|
r := rs[0]
|
|
defer terror.Call(r.Close)
|
|
req := r.NewChunk()
|
|
err = r.Next(ctx, req)
|
|
if err != nil || req.NumRows() == 0 {
|
|
return "", true, errors.Trace(err)
|
|
}
|
|
row := req.GetRow(0)
|
|
if row.IsNull(0) {
|
|
return "", true, nil
|
|
}
|
|
return row.GetString(0), false, nil
|
|
}
|
|
|
|
// upgrade function will do some upgrade works, when the system is bootstrapped by low version TiDB server
|
|
// For example, add new system variables into mysql.global_variables table.
|
|
func upgrade(s Session) {
|
|
ver, err := getBootstrapVersion(s)
|
|
terror.MustNil(err)
|
|
if ver >= currentBootstrapVersion {
|
|
// It is already bootstrapped/upgraded by a higher version TiDB server.
|
|
return
|
|
}
|
|
// Do upgrade works then update bootstrap version.
|
|
for _, upgrade := range bootstrapVersion {
|
|
upgrade(s, ver)
|
|
}
|
|
|
|
updateBootstrapVer(s)
|
|
_, err = s.Execute(context.Background(), "COMMIT")
|
|
|
|
if err != nil {
|
|
sleepTime := 1 * time.Second
|
|
logutil.BgLogger().Info("update bootstrap ver failed",
|
|
zap.Error(err), zap.Duration("sleeping time", sleepTime))
|
|
time.Sleep(sleepTime)
|
|
// Check if TiDB is already upgraded.
|
|
v, err1 := getBootstrapVersion(s)
|
|
if err1 != nil {
|
|
logutil.BgLogger().Fatal("upgrade failed", zap.Error(err1))
|
|
}
|
|
if v >= currentBootstrapVersion {
|
|
// It is already bootstrapped/upgraded by a higher version TiDB server.
|
|
return
|
|
}
|
|
logutil.BgLogger().Fatal("[Upgrade] upgrade failed",
|
|
zap.Int64("from", ver),
|
|
zap.Int("to", currentBootstrapVersion),
|
|
zap.Error(err))
|
|
}
|
|
}
|
|
|
|
// upgradeToVer2 updates to version 2.
|
|
func upgradeToVer2(s Session, ver int64) {
|
|
if ver >= version2 {
|
|
return
|
|
}
|
|
// Version 2 add two system variable for DistSQL concurrency controlling.
|
|
// Insert distsql related system variable.
|
|
distSQLVars := []string{variable.TiDBDistSQLScanConcurrency}
|
|
values := make([]string, 0, len(distSQLVars))
|
|
for _, v := range distSQLVars {
|
|
value := fmt.Sprintf(`("%s", "%s")`, v, variable.SysVars[v].Value)
|
|
values = append(values, value)
|
|
}
|
|
sql := fmt.Sprintf("INSERT HIGH_PRIORITY IGNORE INTO %s.%s VALUES %s;", mysql.SystemDB, mysql.GlobalVariablesTable,
|
|
strings.Join(values, ", "))
|
|
mustExecute(s, sql)
|
|
}
|
|
|
|
// upgradeToVer3 updates to version 3.
|
|
func upgradeToVer3(s Session, ver int64) {
|
|
if ver >= version3 {
|
|
return
|
|
}
|
|
// Version 3 fix tx_read_only variable value.
|
|
sql := fmt.Sprintf("UPDATE HIGH_PRIORITY %s.%s set variable_value = '0' where variable_name = 'tx_read_only';",
|
|
mysql.SystemDB, mysql.GlobalVariablesTable)
|
|
mustExecute(s, sql)
|
|
}
|
|
|
|
// upgradeToVer4 updates to version 4.
|
|
func upgradeToVer4(s Session, ver int64) {
|
|
if ver >= version4 {
|
|
return
|
|
}
|
|
sql := CreateStatsMetaTable
|
|
mustExecute(s, sql)
|
|
}
|
|
|
|
func upgradeToVer5(s Session, ver int64) {
|
|
if ver >= version5 {
|
|
return
|
|
}
|
|
mustExecute(s, CreateStatsColsTable)
|
|
mustExecute(s, CreateStatsBucketsTable)
|
|
}
|
|
|
|
func upgradeToVer6(s Session, ver int64) {
|
|
if ver >= version6 {
|
|
return
|
|
}
|
|
doReentrantDDL(s, "ALTER TABLE mysql.user ADD COLUMN `Super_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N' AFTER `Show_db_priv`", infoschema.ErrColumnExists)
|
|
// For reasons of compatibility, set the non-exists privilege column value to 'Y', as TiDB doesn't check them in older versions.
|
|
mustExecute(s, "UPDATE HIGH_PRIORITY mysql.user SET Super_priv='Y'")
|
|
}
|
|
|
|
func upgradeToVer7(s Session, ver int64) {
|
|
if ver >= version7 {
|
|
return
|
|
}
|
|
doReentrantDDL(s, "ALTER TABLE mysql.user ADD COLUMN `Process_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N' AFTER `Drop_priv`", infoschema.ErrColumnExists)
|
|
// For reasons of compatibility, set the non-exists privilege column value to 'Y', as TiDB doesn't check them in older versions.
|
|
mustExecute(s, "UPDATE HIGH_PRIORITY mysql.user SET Process_priv='Y'")
|
|
}
|
|
|
|
func upgradeToVer8(s Session, ver int64) {
|
|
if ver >= version8 {
|
|
return
|
|
}
|
|
// This is a dummy upgrade, it checks whether upgradeToVer7 success, if not, do it again.
|
|
if _, err := s.Execute(context.Background(), "SELECT HIGH_PRIORITY `Process_priv` from mysql.user limit 0"); err == nil {
|
|
return
|
|
}
|
|
upgradeToVer7(s, ver)
|
|
}
|
|
|
|
func upgradeToVer9(s Session, ver int64) {
|
|
if ver >= version9 {
|
|
return
|
|
}
|
|
doReentrantDDL(s, "ALTER TABLE mysql.user ADD COLUMN `Trigger_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N' AFTER `Create_user_priv`", infoschema.ErrColumnExists)
|
|
// For reasons of compatibility, set the non-exists privilege column value to 'Y', as TiDB doesn't check them in older versions.
|
|
mustExecute(s, "UPDATE HIGH_PRIORITY mysql.user SET Trigger_priv='Y'")
|
|
}
|
|
|
|
func doReentrantDDL(s Session, sql string, ignorableErrs ...error) {
|
|
_, err := s.Execute(context.Background(), sql)
|
|
for _, ignorableErr := range ignorableErrs {
|
|
if terror.ErrorEqual(err, ignorableErr) {
|
|
return
|
|
}
|
|
}
|
|
if err != nil {
|
|
logutil.BgLogger().Fatal("doReentrantDDL error", zap.Error(err))
|
|
}
|
|
}
|
|
|
|
func upgradeToVer10(s Session, ver int64) {
|
|
if ver >= version10 {
|
|
return
|
|
}
|
|
doReentrantDDL(s, "ALTER TABLE mysql.stats_buckets CHANGE COLUMN `value` `upper_bound` BLOB NOT NULL", infoschema.ErrColumnNotExists, infoschema.ErrColumnExists)
|
|
doReentrantDDL(s, "ALTER TABLE mysql.stats_buckets ADD COLUMN `lower_bound` BLOB", infoschema.ErrColumnExists)
|
|
doReentrantDDL(s, "ALTER TABLE mysql.stats_histograms ADD COLUMN `null_count` bigint(64) NOT NULL DEFAULT 0", infoschema.ErrColumnExists)
|
|
doReentrantDDL(s, "ALTER TABLE mysql.stats_histograms DROP COLUMN distinct_ratio", ddl.ErrCantDropFieldOrKey)
|
|
doReentrantDDL(s, "ALTER TABLE mysql.stats_histograms DROP COLUMN use_count_to_estimate", ddl.ErrCantDropFieldOrKey)
|
|
}
|
|
|
|
func upgradeToVer11(s Session, ver int64) {
|
|
if ver >= version11 {
|
|
return
|
|
}
|
|
_, err := s.Execute(context.Background(), "ALTER TABLE mysql.user ADD COLUMN `References_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N' AFTER `Grant_priv`")
|
|
if err != nil {
|
|
if terror.ErrorEqual(err, infoschema.ErrColumnExists) {
|
|
return
|
|
}
|
|
logutil.BgLogger().Fatal("upgradeToVer11 error", zap.Error(err))
|
|
}
|
|
mustExecute(s, "UPDATE HIGH_PRIORITY mysql.user SET References_priv='Y'")
|
|
}
|
|
|
|
func upgradeToVer12(s Session, ver int64) {
|
|
if ver >= version12 {
|
|
return
|
|
}
|
|
ctx := context.Background()
|
|
_, err := s.Execute(ctx, "BEGIN")
|
|
terror.MustNil(err)
|
|
sql := "SELECT HIGH_PRIORITY user, host, password FROM mysql.user WHERE password != ''"
|
|
rs, err := s.Execute(ctx, sql)
|
|
if terror.ErrorEqual(err, core.ErrUnknownColumn) {
|
|
sql := "SELECT HIGH_PRIORITY user, host, authentication_string FROM mysql.user WHERE authentication_string != ''"
|
|
rs, err = s.Execute(ctx, sql)
|
|
}
|
|
terror.MustNil(err)
|
|
r := rs[0]
|
|
sqls := make([]string, 0, 1)
|
|
defer terror.Call(r.Close)
|
|
req := r.NewChunk()
|
|
it := chunk.NewIterator4Chunk(req)
|
|
err = r.Next(ctx, req)
|
|
for err == nil && req.NumRows() != 0 {
|
|
for row := it.Begin(); row != it.End(); row = it.Next() {
|
|
user := row.GetString(0)
|
|
host := row.GetString(1)
|
|
pass := row.GetString(2)
|
|
var newPass string
|
|
newPass, err = oldPasswordUpgrade(pass)
|
|
terror.MustNil(err)
|
|
updateSQL := fmt.Sprintf(`UPDATE HIGH_PRIORITY mysql.user set password = "%s" where user="%s" and host="%s"`, newPass, user, host)
|
|
sqls = append(sqls, updateSQL)
|
|
}
|
|
err = r.Next(ctx, req)
|
|
}
|
|
terror.MustNil(err)
|
|
|
|
for _, sql := range sqls {
|
|
mustExecute(s, sql)
|
|
}
|
|
|
|
sql = fmt.Sprintf(`INSERT HIGH_PRIORITY INTO %s.%s VALUES ("%s", "%d", "TiDB bootstrap version.") ON DUPLICATE KEY UPDATE VARIABLE_VALUE="%d"`,
|
|
mysql.SystemDB, mysql.TiDBTable, tidbServerVersionVar, version12, version12)
|
|
mustExecute(s, sql)
|
|
|
|
mustExecute(s, "COMMIT")
|
|
}
|
|
|
|
func upgradeToVer13(s Session, ver int64) {
|
|
if ver >= version13 {
|
|
return
|
|
}
|
|
sqls := []string{
|
|
"ALTER TABLE mysql.user ADD COLUMN `Create_tmp_table_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N' AFTER `Super_priv`",
|
|
"ALTER TABLE mysql.user ADD COLUMN `Lock_tables_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N' AFTER `Create_tmp_table_priv`",
|
|
"ALTER TABLE mysql.user ADD COLUMN `Create_view_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N' AFTER `Execute_priv`",
|
|
"ALTER TABLE mysql.user ADD COLUMN `Show_view_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N' AFTER `Create_view_priv`",
|
|
"ALTER TABLE mysql.user ADD COLUMN `Create_routine_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N' AFTER `Show_view_priv`",
|
|
"ALTER TABLE mysql.user ADD COLUMN `Alter_routine_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N' AFTER `Create_routine_priv`",
|
|
"ALTER TABLE mysql.user ADD COLUMN `Event_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N' AFTER `Create_user_priv`",
|
|
}
|
|
ctx := context.Background()
|
|
for _, sql := range sqls {
|
|
_, err := s.Execute(ctx, sql)
|
|
if err != nil {
|
|
if terror.ErrorEqual(err, infoschema.ErrColumnExists) {
|
|
continue
|
|
}
|
|
logutil.BgLogger().Fatal("upgradeToVer13 error", zap.Error(err))
|
|
}
|
|
}
|
|
mustExecute(s, "UPDATE HIGH_PRIORITY mysql.user SET Create_tmp_table_priv='Y',Lock_tables_priv='Y',Create_routine_priv='Y',Alter_routine_priv='Y',Event_priv='Y' WHERE Super_priv='Y'")
|
|
mustExecute(s, "UPDATE HIGH_PRIORITY mysql.user SET Create_view_priv='Y',Show_view_priv='Y' WHERE Create_priv='Y'")
|
|
}
|
|
|
|
func upgradeToVer14(s Session, ver int64) {
|
|
if ver >= version14 {
|
|
return
|
|
}
|
|
sqls := []string{
|
|
"ALTER TABLE mysql.db ADD COLUMN `References_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N' AFTER `Grant_priv`",
|
|
"ALTER TABLE mysql.db ADD COLUMN `Create_tmp_table_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N' AFTER `Alter_priv`",
|
|
"ALTER TABLE mysql.db ADD COLUMN `Lock_tables_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N' AFTER `Create_tmp_table_priv`",
|
|
"ALTER TABLE mysql.db ADD COLUMN `Create_view_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N' AFTER `Lock_tables_priv`",
|
|
"ALTER TABLE mysql.db ADD COLUMN `Show_view_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N' AFTER `Create_view_priv`",
|
|
"ALTER TABLE mysql.db ADD COLUMN `Create_routine_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N' AFTER `Show_view_priv`",
|
|
"ALTER TABLE mysql.db ADD COLUMN `Alter_routine_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N' AFTER `Create_routine_priv`",
|
|
"ALTER TABLE mysql.db ADD COLUMN `Event_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N' AFTER `Execute_priv`",
|
|
"ALTER TABLE mysql.db ADD COLUMN `Trigger_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N' AFTER `Event_priv`",
|
|
}
|
|
ctx := context.Background()
|
|
for _, sql := range sqls {
|
|
_, err := s.Execute(ctx, sql)
|
|
if err != nil {
|
|
if terror.ErrorEqual(err, infoschema.ErrColumnExists) {
|
|
continue
|
|
}
|
|
logutil.BgLogger().Fatal("upgradeToVer14 error", zap.Error(err))
|
|
}
|
|
}
|
|
}
|
|
|
|
func upgradeToVer15(s Session, ver int64) {
|
|
if ver >= version15 {
|
|
return
|
|
}
|
|
var err error
|
|
_, err = s.Execute(context.Background(), CreateGCDeleteRangeTable)
|
|
if err != nil {
|
|
logutil.BgLogger().Fatal("upgradeToVer15 error", zap.Error(err))
|
|
}
|
|
}
|
|
|
|
func upgradeToVer16(s Session, ver int64) {
|
|
if ver >= version16 {
|
|
return
|
|
}
|
|
doReentrantDDL(s, "ALTER TABLE mysql.stats_histograms ADD COLUMN `cm_sketch` blob", infoschema.ErrColumnExists)
|
|
}
|
|
|
|
func upgradeToVer17(s Session, ver int64) {
|
|
if ver >= version17 {
|
|
return
|
|
}
|
|
doReentrantDDL(s, "ALTER TABLE mysql.user MODIFY User CHAR(32)")
|
|
}
|
|
|
|
func upgradeToVer18(s Session, ver int64) {
|
|
if ver >= version18 {
|
|
return
|
|
}
|
|
doReentrantDDL(s, "ALTER TABLE mysql.stats_histograms ADD COLUMN `tot_col_size` bigint(64) NOT NULL DEFAULT 0", infoschema.ErrColumnExists)
|
|
}
|
|
|
|
func upgradeToVer19(s Session, ver int64) {
|
|
if ver >= version19 {
|
|
return
|
|
}
|
|
doReentrantDDL(s, "ALTER TABLE mysql.db MODIFY User CHAR(32)")
|
|
doReentrantDDL(s, "ALTER TABLE mysql.tables_priv MODIFY User CHAR(32)")
|
|
doReentrantDDL(s, "ALTER TABLE mysql.columns_priv MODIFY User CHAR(32)")
|
|
}
|
|
|
|
func upgradeToVer20(s Session, ver int64) {
|
|
if ver >= version20 {
|
|
return
|
|
}
|
|
doReentrantDDL(s, CreateStatsFeedbackTable)
|
|
}
|
|
|
|
func upgradeToVer21(s Session, ver int64) {
|
|
if ver >= version21 {
|
|
return
|
|
}
|
|
mustExecute(s, CreateGCDeleteRangeDoneTable)
|
|
|
|
doReentrantDDL(s, "ALTER TABLE mysql.gc_delete_range DROP INDEX job_id", ddl.ErrCantDropFieldOrKey)
|
|
doReentrantDDL(s, "ALTER TABLE mysql.gc_delete_range ADD UNIQUE INDEX delete_range_index (job_id, element_id)", ddl.ErrDupKeyName)
|
|
doReentrantDDL(s, "ALTER TABLE mysql.gc_delete_range DROP INDEX element_id", ddl.ErrCantDropFieldOrKey)
|
|
}
|
|
|
|
func upgradeToVer22(s Session, ver int64) {
|
|
if ver >= version22 {
|
|
return
|
|
}
|
|
doReentrantDDL(s, "ALTER TABLE mysql.stats_histograms ADD COLUMN `stats_ver` bigint(64) NOT NULL DEFAULT 0", infoschema.ErrColumnExists)
|
|
}
|
|
|
|
func upgradeToVer23(s Session, ver int64) {
|
|
if ver >= version23 {
|
|
return
|
|
}
|
|
doReentrantDDL(s, "ALTER TABLE mysql.stats_histograms ADD COLUMN `flag` bigint(64) NOT NULL DEFAULT 0", infoschema.ErrColumnExists)
|
|
}
|
|
|
|
// writeSystemTZ writes system timezone info into mysql.tidb
|
|
func writeSystemTZ(s Session) {
|
|
sql := fmt.Sprintf(`INSERT HIGH_PRIORITY INTO %s.%s VALUES ("%s", "%s", "TiDB Global System Timezone.") ON DUPLICATE KEY UPDATE VARIABLE_VALUE="%s"`,
|
|
mysql.SystemDB, mysql.TiDBTable, tidbSystemTZ, timeutil.InferSystemTZ(), timeutil.InferSystemTZ())
|
|
mustExecute(s, sql)
|
|
}
|
|
|
|
// upgradeToVer24 initializes `System` timezone according to docs/design/2018-09-10-adding-tz-env.md
|
|
func upgradeToVer24(s Session, ver int64) {
|
|
if ver >= version24 {
|
|
return
|
|
}
|
|
writeSystemTZ(s)
|
|
}
|
|
|
|
// upgradeToVer25 updates tidb_max_chunk_size to new low bound value 32 if previous value is small than 32.
|
|
func upgradeToVer25(s Session, ver int64) {
|
|
if ver >= version25 {
|
|
return
|
|
}
|
|
sql := fmt.Sprintf("UPDATE HIGH_PRIORITY %[1]s.%[2]s SET VARIABLE_VALUE = '%[4]d' WHERE VARIABLE_NAME = '%[3]s' AND VARIABLE_VALUE < %[4]d",
|
|
mysql.SystemDB, mysql.GlobalVariablesTable, variable.TiDBMaxChunkSize, variable.DefInitChunkSize)
|
|
mustExecute(s, sql)
|
|
}
|
|
|
|
func upgradeToVer26(s Session, ver int64) {
|
|
if ver >= version26 {
|
|
return
|
|
}
|
|
mustExecute(s, CreateRoleEdgesTable)
|
|
mustExecute(s, CreateDefaultRolesTable)
|
|
doReentrantDDL(s, "ALTER TABLE mysql.user ADD COLUMN `Create_role_priv` ENUM('N','Y') DEFAULT 'N'", infoschema.ErrColumnExists)
|
|
doReentrantDDL(s, "ALTER TABLE mysql.user ADD COLUMN `Drop_role_priv` ENUM('N','Y') DEFAULT 'N'", infoschema.ErrColumnExists)
|
|
doReentrantDDL(s, "ALTER TABLE mysql.user ADD COLUMN `Account_locked` ENUM('N','Y') DEFAULT 'N'", infoschema.ErrColumnExists)
|
|
// user with Create_user_Priv privilege should have Create_view_priv and Show_view_priv after upgrade to v3.0
|
|
mustExecute(s, "UPDATE HIGH_PRIORITY mysql.user SET Create_role_priv='Y',Drop_role_priv='Y' WHERE Create_user_priv='Y'")
|
|
// user with Create_Priv privilege should have Create_view_priv and Show_view_priv after upgrade to v3.0
|
|
mustExecute(s, "UPDATE HIGH_PRIORITY mysql.user SET Create_view_priv='Y',Show_view_priv='Y' WHERE Create_priv='Y'")
|
|
}
|
|
|
|
func upgradeToVer27(s Session, ver int64) {
|
|
if ver >= version27 {
|
|
return
|
|
}
|
|
doReentrantDDL(s, "ALTER TABLE mysql.stats_histograms ADD COLUMN `correlation` double NOT NULL DEFAULT 0", infoschema.ErrColumnExists)
|
|
}
|
|
|
|
func upgradeToVer28(s Session, ver int64) {
|
|
if ver >= version28 {
|
|
return
|
|
}
|
|
doReentrantDDL(s, CreateBindInfoTable)
|
|
}
|
|
|
|
func upgradeToVer29(s Session, ver int64) {
|
|
// upgradeToVer29 only need to be run when the current version is 28.
|
|
if ver != version28 {
|
|
return
|
|
}
|
|
doReentrantDDL(s, "ALTER TABLE mysql.bind_info change create_time create_time timestamp(3)")
|
|
doReentrantDDL(s, "ALTER TABLE mysql.bind_info change update_time update_time timestamp(3)")
|
|
doReentrantDDL(s, "ALTER TABLE mysql.bind_info add index sql_index (original_sql(1024),default_db(1024))", ddl.ErrDupKeyName)
|
|
}
|
|
|
|
func upgradeToVer30(s Session, ver int64) {
|
|
if ver >= version30 {
|
|
return
|
|
}
|
|
mustExecute(s, CreateStatsTopNTable)
|
|
}
|
|
|
|
func upgradeToVer31(s Session, ver int64) {
|
|
if ver >= version31 {
|
|
return
|
|
}
|
|
doReentrantDDL(s, "ALTER TABLE mysql.stats_histograms ADD COLUMN `last_analyze_pos` blob default null", infoschema.ErrColumnExists)
|
|
}
|
|
|
|
func upgradeToVer32(s Session, ver int64) {
|
|
if ver >= version32 {
|
|
return
|
|
}
|
|
doReentrantDDL(s, "ALTER TABLE mysql.tables_priv MODIFY table_priv SET('Select','Insert','Update','Delete','Create','Drop','Grant', 'Index', 'Alter', 'Create View', 'Show View', 'Trigger', 'References')")
|
|
}
|
|
|
|
func upgradeToVer33(s Session, ver int64) {
|
|
if ver >= version33 {
|
|
return
|
|
}
|
|
doReentrantDDL(s, CreateExprPushdownBlacklist)
|
|
}
|
|
|
|
func upgradeToVer34(s Session, ver int64) {
|
|
if ver >= version34 {
|
|
return
|
|
}
|
|
doReentrantDDL(s, CreateOptRuleBlacklist)
|
|
}
|
|
|
|
func upgradeToVer35(s Session, ver int64) {
|
|
if ver >= version35 {
|
|
return
|
|
}
|
|
sql := fmt.Sprintf("UPDATE HIGH_PRIORITY %s.%s SET VARIABLE_NAME = '%s' WHERE VARIABLE_NAME = 'tidb_back_off_weight'",
|
|
mysql.SystemDB, mysql.GlobalVariablesTable, variable.TiDBBackOffWeight)
|
|
mustExecute(s, sql)
|
|
}
|
|
|
|
func upgradeToVer36(s Session, ver int64) {
|
|
if ver >= version36 {
|
|
return
|
|
}
|
|
doReentrantDDL(s, "ALTER TABLE mysql.user ADD COLUMN `Shutdown_priv` ENUM('N','Y') DEFAULT 'N'", infoschema.ErrColumnExists)
|
|
// A root user will have those privileges after upgrading.
|
|
mustExecute(s, "UPDATE HIGH_PRIORITY mysql.user SET Shutdown_priv='Y' where Super_priv='Y'")
|
|
mustExecute(s, "UPDATE HIGH_PRIORITY mysql.user SET Create_tmp_table_priv='Y',Lock_tables_priv='Y',Create_routine_priv='Y',Alter_routine_priv='Y',Event_priv='Y' WHERE Super_priv='Y'")
|
|
}
|
|
|
|
func upgradeToVer37(s Session, ver int64) {
|
|
if ver >= version37 {
|
|
return
|
|
}
|
|
// when upgrade from old tidb and no 'tidb_enable_window_function' in GLOBAL_VARIABLES, init it with 0.
|
|
sql := fmt.Sprintf("INSERT IGNORE INTO %s.%s (`VARIABLE_NAME`, `VARIABLE_VALUE`) VALUES ('%s', '%d')",
|
|
mysql.SystemDB, mysql.GlobalVariablesTable, variable.TiDBEnableWindowFunction, 0)
|
|
mustExecute(s, sql)
|
|
}
|
|
|
|
func upgradeToVer38(s Session, ver int64) {
|
|
if ver >= version38 {
|
|
return
|
|
}
|
|
var err error
|
|
_, err = s.Execute(context.Background(), CreateGlobalPrivTable)
|
|
if err != nil {
|
|
logutil.BgLogger().Fatal("upgradeToVer38 error", zap.Error(err))
|
|
}
|
|
}
|
|
|
|
func upgradeToVer39(s Session, ver int64) {
|
|
if ver >= version39 {
|
|
return
|
|
}
|
|
doReentrantDDL(s, "ALTER TABLE mysql.user ADD COLUMN `Reload_priv` ENUM('N','Y') DEFAULT 'N'", infoschema.ErrColumnExists)
|
|
doReentrantDDL(s, "ALTER TABLE mysql.user ADD COLUMN `File_priv` ENUM('N','Y') DEFAULT 'N'", infoschema.ErrColumnExists)
|
|
mustExecute(s, "UPDATE HIGH_PRIORITY mysql.user SET Reload_priv='Y' where Super_priv='Y'")
|
|
mustExecute(s, "UPDATE HIGH_PRIORITY mysql.user SET File_priv='Y' where Super_priv='Y'")
|
|
}
|
|
|
|
func writeNewCollationParameter(s Session, flag bool) {
|
|
comment := "If the new collations are enabled. Do not edit it."
|
|
b := varFalse
|
|
if flag {
|
|
b = varTrue
|
|
}
|
|
sql := fmt.Sprintf(`INSERT HIGH_PRIORITY INTO %s.%s VALUES ("%s", '%s', '%s') ON DUPLICATE KEY UPDATE VARIABLE_VALUE='%s'`,
|
|
mysql.SystemDB, mysql.TiDBTable, tidbNewCollationEnabled, b, comment, b)
|
|
mustExecute(s, sql)
|
|
}
|
|
|
|
func upgradeToVer40(s Session, ver int64) {
|
|
if ver >= version40 {
|
|
return
|
|
}
|
|
// There is no way to enable new collation for an existing TiDB cluster.
|
|
writeNewCollationParameter(s, false)
|
|
}
|
|
|
|
func upgradeToVer41(s Session, ver int64) {
|
|
if ver >= version41 {
|
|
return
|
|
}
|
|
doReentrantDDL(s, "ALTER TABLE mysql.user CHANGE `password` `authentication_string` TEXT", infoschema.ErrColumnExists, infoschema.ErrColumnNotExists)
|
|
doReentrantDDL(s, "ALTER TABLE mysql.user ADD COLUMN `password` TEXT as (`authentication_string`)", infoschema.ErrColumnExists)
|
|
}
|
|
|
|
// writeDefaultExprPushDownBlacklist writes default expr pushdown blacklist into mysql.expr_pushdown_blacklist
|
|
func writeDefaultExprPushDownBlacklist(s Session) {
|
|
mustExecute(s, "INSERT HIGH_PRIORITY INTO mysql.expr_pushdown_blacklist VALUES"+
|
|
"('date_add','tiflash', 'DST(daylight saving time) does not take effect in TiFlash date_add')")
|
|
}
|
|
|
|
func upgradeToVer42(s Session, ver int64) {
|
|
if ver >= version42 {
|
|
return
|
|
}
|
|
doReentrantDDL(s, "ALTER TABLE mysql.expr_pushdown_blacklist ADD COLUMN `store_type` char(100) NOT NULL DEFAULT 'tikv,tiflash,tidb'", infoschema.ErrColumnExists)
|
|
doReentrantDDL(s, "ALTER TABLE mysql.expr_pushdown_blacklist ADD COLUMN `reason` varchar(200)", infoschema.ErrColumnExists)
|
|
writeDefaultExprPushDownBlacklist(s)
|
|
}
|
|
|
|
// Convert statement summary global variables to non-empty values.
|
|
func writeStmtSummaryVars(s Session) {
|
|
sql := fmt.Sprintf("UPDATE %s.%s SET variable_value='%%s' WHERE variable_name='%%s' AND variable_value=''", mysql.SystemDB, mysql.GlobalVariablesTable)
|
|
stmtSummaryConfig := config.GetGlobalConfig().StmtSummary
|
|
mustExecute(s, fmt.Sprintf(sql, variable.BoolToIntStr(stmtSummaryConfig.Enable), variable.TiDBEnableStmtSummary))
|
|
mustExecute(s, fmt.Sprintf(sql, variable.BoolToIntStr(stmtSummaryConfig.EnableInternalQuery), variable.TiDBStmtSummaryInternalQuery))
|
|
mustExecute(s, fmt.Sprintf(sql, strconv.Itoa(stmtSummaryConfig.RefreshInterval), variable.TiDBStmtSummaryRefreshInterval))
|
|
mustExecute(s, fmt.Sprintf(sql, strconv.Itoa(stmtSummaryConfig.HistorySize), variable.TiDBStmtSummaryHistorySize))
|
|
mustExecute(s, fmt.Sprintf(sql, strconv.FormatUint(uint64(stmtSummaryConfig.MaxStmtCount), 10), variable.TiDBStmtSummaryMaxStmtCount))
|
|
mustExecute(s, fmt.Sprintf(sql, strconv.FormatUint(uint64(stmtSummaryConfig.MaxSQLLength), 10), variable.TiDBStmtSummaryMaxSQLLength))
|
|
}
|
|
|
|
func upgradeToVer43(s Session, ver int64) {
|
|
if ver >= version43 {
|
|
return
|
|
}
|
|
writeStmtSummaryVars(s)
|
|
}
|
|
|
|
func upgradeToVer44(s Session, ver int64) {
|
|
if ver >= version44 {
|
|
return
|
|
}
|
|
mustExecute(s, "DELETE FROM mysql.global_variables where variable_name = \"tidb_isolation_read_engines\"")
|
|
}
|
|
|
|
func upgradeToVer45(s Session, ver int64) {
|
|
if ver >= version45 {
|
|
return
|
|
}
|
|
doReentrantDDL(s, "ALTER TABLE mysql.user ADD COLUMN `Config_priv` ENUM('N','Y') DEFAULT 'N'", infoschema.ErrColumnExists)
|
|
mustExecute(s, "UPDATE HIGH_PRIORITY mysql.user SET Config_priv='Y' where Super_priv='Y'")
|
|
}
|
|
|
|
// In v3.1.1, we wrongly replace the context of upgradeToVer39 with upgradeToVer44. If we upgrade from v3.1.1 to a newer version,
|
|
// upgradeToVer39 will be missed. So we redo upgradeToVer39 here to make sure the upgrading from v3.1.1 succeed.
|
|
func upgradeToVer46(s Session, ver int64) {
|
|
if ver >= version46 {
|
|
return
|
|
}
|
|
doReentrantDDL(s, "ALTER TABLE mysql.user ADD COLUMN `Reload_priv` ENUM('N','Y') DEFAULT 'N'", infoschema.ErrColumnExists)
|
|
doReentrantDDL(s, "ALTER TABLE mysql.user ADD COLUMN `File_priv` ENUM('N','Y') DEFAULT 'N'", infoschema.ErrColumnExists)
|
|
mustExecute(s, "UPDATE HIGH_PRIORITY mysql.user SET Reload_priv='Y' where Super_priv='Y'")
|
|
mustExecute(s, "UPDATE HIGH_PRIORITY mysql.user SET File_priv='Y' where Super_priv='Y'")
|
|
}
|
|
|
|
func upgradeToVer47(s Session, ver int64) {
|
|
if ver >= version47 {
|
|
return
|
|
}
|
|
doReentrantDDL(s, "ALTER TABLE mysql.bind_info ADD COLUMN `source` varchar(10) NOT NULL default 'unknown'", infoschema.ErrColumnExists)
|
|
}
|
|
|
|
func upgradeToVer48(s Session, ver int64) {
|
|
if ver >= version48 {
|
|
return
|
|
}
|
|
doReentrantDDL(s, "ALTER TABLE mysql.stats_histograms MODIFY cm_sketch BLOB(6291456)")
|
|
}
|
|
|
|
func upgradeToVer49(s Session, ver int64) {
|
|
if ver >= version49 {
|
|
return
|
|
}
|
|
// The mem-query-quota default value is 32GB by default in v3.0, and 1GB by
|
|
// default in v4.0.
|
|
// If a cluster is upgraded from v3.0.x (bootstrapVer <= version38) to
|
|
// v4.0.9+, we'll write the default value to mysql.tidb. Thus we can get the
|
|
// default value of mem-quota-query, and promise the compatibility even if
|
|
// the tidb-server restarts.
|
|
// If it's a newly deployed cluster, we do not need to write the value into
|
|
// mysql.tidb, since no compatibility problem will happen.
|
|
if ver <= version38 {
|
|
writeMemoryQuotaQuery(s)
|
|
}
|
|
}
|
|
|
|
func writeMemoryQuotaQuery(s Session) {
|
|
comment := "memory_quota_query is 32GB by default in v3.0.x, 1GB by default in v4.0.x"
|
|
sql := fmt.Sprintf(`INSERT HIGH_PRIORITY INTO %s.%s VALUES ("%s", '%d', '%s') ON DUPLICATE KEY UPDATE VARIABLE_VALUE='%d'`,
|
|
mysql.SystemDB, mysql.TiDBTable, tidbDefMemoryQuotaQuery, 32<<30, comment, 32<<30)
|
|
mustExecute(s, sql)
|
|
}
|
|
|
|
// updateBootstrapVer updates bootstrap version variable in mysql.TiDB table.
|
|
func updateBootstrapVer(s Session) {
|
|
// Update bootstrap version.
|
|
sql := fmt.Sprintf(`INSERT HIGH_PRIORITY INTO %s.%s VALUES ("%s", "%d", "TiDB bootstrap version.") ON DUPLICATE KEY UPDATE VARIABLE_VALUE="%d"`,
|
|
mysql.SystemDB, mysql.TiDBTable, tidbServerVersionVar, currentBootstrapVersion, currentBootstrapVersion)
|
|
mustExecute(s, sql)
|
|
}
|
|
|
|
// getBootstrapVersion gets bootstrap version from mysql.tidb table;
|
|
func getBootstrapVersion(s Session) (int64, error) {
|
|
sVal, isNull, err := getTiDBVar(s, tidbServerVersionVar)
|
|
if err != nil {
|
|
return 0, errors.Trace(err)
|
|
}
|
|
if isNull {
|
|
return 0, nil
|
|
}
|
|
return strconv.ParseInt(sVal, 10, 64)
|
|
}
|
|
|
|
// doDDLWorks executes DDL statements in bootstrap stage.
|
|
func doDDLWorks(s Session) {
|
|
// Create a test database.
|
|
mustExecute(s, "CREATE DATABASE IF NOT EXISTS test")
|
|
// Create system db.
|
|
mustExecute(s, fmt.Sprintf("CREATE DATABASE IF NOT EXISTS %s;", mysql.SystemDB))
|
|
// Create user table.
|
|
mustExecute(s, CreateUserTable)
|
|
// Create privilege tables.
|
|
mustExecute(s, CreateGlobalPrivTable)
|
|
mustExecute(s, CreateDBPrivTable)
|
|
mustExecute(s, CreateTablePrivTable)
|
|
mustExecute(s, CreateColumnPrivTable)
|
|
// Create global system variable table.
|
|
mustExecute(s, CreateGlobalVariablesTable)
|
|
// Create TiDB table.
|
|
mustExecute(s, CreateTiDBTable)
|
|
// Create help table.
|
|
mustExecute(s, CreateHelpTopic)
|
|
// Create stats_meta table.
|
|
mustExecute(s, CreateStatsMetaTable)
|
|
// Create stats_columns table.
|
|
mustExecute(s, CreateStatsColsTable)
|
|
// Create stats_buckets table.
|
|
mustExecute(s, CreateStatsBucketsTable)
|
|
// Create gc_delete_range table.
|
|
mustExecute(s, CreateGCDeleteRangeTable)
|
|
// Create gc_delete_range_done table.
|
|
mustExecute(s, CreateGCDeleteRangeDoneTable)
|
|
// Create stats_feedback table.
|
|
mustExecute(s, CreateStatsFeedbackTable)
|
|
// Create role_edges table.
|
|
mustExecute(s, CreateRoleEdgesTable)
|
|
// Create default_roles table.
|
|
mustExecute(s, CreateDefaultRolesTable)
|
|
// Create bind_info table.
|
|
mustExecute(s, CreateBindInfoTable)
|
|
// Create stats_topn_store table.
|
|
mustExecute(s, CreateStatsTopNTable)
|
|
// Create expr_pushdown_blacklist table.
|
|
mustExecute(s, CreateExprPushdownBlacklist)
|
|
// Create opt_rule_blacklist table.
|
|
mustExecute(s, CreateOptRuleBlacklist)
|
|
}
|
|
|
|
// doDMLWorks executes DML statements in bootstrap stage.
|
|
// All the statements run in a single transaction.
|
|
func doDMLWorks(s Session) {
|
|
mustExecute(s, "BEGIN")
|
|
|
|
// Insert a default user with empty password.
|
|
mustExecute(s, `INSERT HIGH_PRIORITY INTO mysql.user VALUES
|
|
("%", "root", "", "Y", "Y", "Y", "Y", "Y", "Y", "Y", "Y", "Y", "Y", "Y", "Y", "Y", "Y", "Y", "Y", "Y", "Y", "Y", "Y", "Y", "Y", "Y", "Y", "Y", "N", "Y", "Y", "Y", "Y")`)
|
|
|
|
// Init global system variables table.
|
|
values := make([]string, 0, len(variable.SysVars))
|
|
for k, v := range variable.SysVars {
|
|
// Session only variable should not be inserted.
|
|
if v.Scope != variable.ScopeSession {
|
|
vVal := v.Value
|
|
if v.Name == variable.TiDBTxnMode && config.GetGlobalConfig().Store == "tikv" {
|
|
vVal = "pessimistic"
|
|
}
|
|
if v.Name == variable.TiDBRowFormatVersion {
|
|
vVal = strconv.Itoa(variable.DefTiDBRowFormatV2)
|
|
}
|
|
value := fmt.Sprintf(`("%s", "%s")`, strings.ToLower(k), vVal)
|
|
values = append(values, value)
|
|
}
|
|
}
|
|
sql := fmt.Sprintf("INSERT HIGH_PRIORITY INTO %s.%s VALUES %s;", mysql.SystemDB, mysql.GlobalVariablesTable,
|
|
strings.Join(values, ", "))
|
|
mustExecute(s, sql)
|
|
|
|
sql = fmt.Sprintf(`INSERT HIGH_PRIORITY INTO %s.%s VALUES("%s", "%s", "Bootstrap flag. Do not delete.")
|
|
ON DUPLICATE KEY UPDATE VARIABLE_VALUE="%s"`,
|
|
mysql.SystemDB, mysql.TiDBTable, bootstrappedVar, varTrue, varTrue)
|
|
mustExecute(s, sql)
|
|
|
|
sql = fmt.Sprintf(`INSERT HIGH_PRIORITY INTO %s.%s VALUES("%s", "%d", "Bootstrap version. Do not delete.")`,
|
|
mysql.SystemDB, mysql.TiDBTable, tidbServerVersionVar, currentBootstrapVersion)
|
|
mustExecute(s, sql)
|
|
|
|
writeSystemTZ(s)
|
|
|
|
writeNewCollationParameter(s, config.GetGlobalConfig().NewCollationsEnabledOnFirstBootstrap)
|
|
|
|
writeDefaultExprPushDownBlacklist(s)
|
|
|
|
writeStmtSummaryVars(s)
|
|
|
|
_, err := s.Execute(context.Background(), "COMMIT")
|
|
if err != nil {
|
|
sleepTime := 1 * time.Second
|
|
logutil.BgLogger().Info("doDMLWorks failed", zap.Error(err), zap.Duration("sleeping time", sleepTime))
|
|
time.Sleep(sleepTime)
|
|
// Check if TiDB is already bootstrapped.
|
|
b, err1 := checkBootstrapped(s)
|
|
if err1 != nil {
|
|
logutil.BgLogger().Fatal("doDMLWorks failed", zap.Error(err1))
|
|
}
|
|
if b {
|
|
return
|
|
}
|
|
logutil.BgLogger().Fatal("doDMLWorks failed", zap.Error(err))
|
|
}
|
|
}
|
|
|
|
func mustExecute(s Session, sql string) {
|
|
_, err := s.Execute(context.Background(), sql)
|
|
if err != nil {
|
|
debug.PrintStack()
|
|
logutil.BgLogger().Fatal("mustExecute error", zap.Error(err))
|
|
}
|
|
}
|
|
|
|
// oldPasswordUpgrade upgrade password to MySQL compatible format
|
|
func oldPasswordUpgrade(pass string) (string, error) {
|
|
hash1, err := hex.DecodeString(pass)
|
|
if err != nil {
|
|
return "", errors.Trace(err)
|
|
}
|
|
|
|
hash2 := auth.Sha1Hash(hash1)
|
|
newpass := fmt.Sprintf("*%X", hash2)
|
|
return newpass, nil
|
|
}
|
|
|