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  • 'mysql.column_stats' doesn't exist and Table 'mysql.index_stats' doesn't exist

    在生产库MariabDB中修改字段类型,提示如下错误:
    ​Table 'mysql.column_stats' doesn't exist
    Table 'mysql.index_stats' doesn't exist

    ​MariaDB版本如下:​
    ​MariaDB [mysql]> select @@version;
    +---------------------+
    | @@version |
    +---------------------+
    | 10.0.12-MariaDB-log |
    +---------------------+

    连接mysql数据库检查表:
    MariaDB [mysql]> show tables;
    +---------------------------+
    | Tables_in_mysql |
    +---------------------------+
    | columns_priv |
    | db |
    | event |
    | func |
    | general_log |
    | gtid_slave_pos |
    | help_category |
    | help_keyword |
    | help_relation |
    | help_topic |
    | host |
    | innodb_index_stats |
    | innodb_table_stats |
    | inventory |
    | ndb_binlog_index |
    | plugin |
    | proc |
    | procs_priv |
    | proxies_priv |
    | servers |
    | slave_master_info |
    | slave_relay_log_info |
    | slave_worker_info |
    | slow_log |
    | tables_priv |
    | time_zone |
    | time_zone_leap_second |
    | time_zone_name |
    | time_zone_transition |
    | time_zone_transition_type |
    | user |
    +---------------------------+

    检查发现缺少提示错误的几张表,column_stats、index_stats、table_stats

    解决方法:
    在主库创建以上表:
    CREATE TABLE IF NOT EXISTS `column_stats` (
    `db_name` varchar(64) NOT NULL COMMENT 'Database the table is in.',
    `table_name` varchar(64) NOT NULL COMMENT 'Table name.',
    `column_name` varchar(64) NOT NULL COMMENT 'Name of the column.',
    `min_value` varchar(255) DEFAULT NULL COMMENT 'Minimum value in the table (in text form).',
    `max_value` varchar(255) NOT NULL COMMENT 'Maximum value in the table (in text form).',
    `nulls_ratio` decimal(12,4) DEFAULT NULL COMMENT 'Fraction of NULL values (0 - no NULLs, 0.5 - half values are NULLs, 1 - all values are NULLs).',
    `avg_length` decimal(12,4) DEFAULT NULL COMMENT 'Average length of column value, in bytes. Counted as if one ran SELECT AVG(LENGTH(col)). This doesn''t count NULL bytes, assumes endspace removal for CHAR(n), etc.',
    `avg_frequency` decimal(12,4) DEFAULT NULL COMMENT 'Average number of records with the same value',
    `hist_size` tinyint(3) unsigned DEFAULT NULL COMMENT 'Histogram size in bytes, from 0-255.',
    `hist_type` enum('SINGLE_PREC_HB','DOUBLE_PREC_HB') DEFAULT NULL COMMENT 'Histogram type. See the histogram_type system variable.',
    `histogram` varbinary(255) DEFAULT NULL
    ) ENGINE=InnoDB DEFAULT CHARSET=utf8;

    CREATE TABLE IF NOT EXISTS `index_stats` (
    `db_name` varchar(64) NOT NULL COMMENT 'Database the table is in.',
    `table_name` varchar(64) NOT NULL COMMENT 'Table name',
    `index_name` varchar(64) NOT NULL COMMENT 'Name of the index',
    `prefix_arity` int(10) unsigned NOT NULL COMMENT 'Index prefix length. 1 for the first keypart, 2 for the first two, and so on. InnoDB''s extended keys are supported.',
    `avg_frequency` decimal(12,4) DEFAULT NULL COMMENT 'Average number of records one will find for given values of (keypart1, keypart2, ..), provided the values will be found in the table.'
    ) ENGINE=InnoDB DEFAULT CHARSET=utf8;

    CREATE TABLE IF NOT EXISTS `table_stats` (
    `db_name` varchar(64) NOT NULL COMMENT 'Database the table is in .',
    `table_name` varchar(64) NOT NULL COMMENT 'Table name.',
    `cardinality` bigint(21) DEFAULT NULL COMMENT 'Number of records in the table.'
    ) ENGINE=InnoDB DEFAULT CHARSET=utf8;

    ALTER TABLE `column_stats`
    ADD PRIMARY KEY (`db_name`,`table_name`,`column_name`);

    ALTER TABLE `index_stats`
    ADD PRIMARY KEY (`db_name`,`table_name`,`index_name`,`prefix_arity`);

    ALTER TABLE `table_stats`
    ADD PRIMARY KEY (`db_name`,`table_name`);

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  • 原文地址:https://www.cnblogs.com/hankyoon/p/5197449.html
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