DDL_JOBS

The DDL_JOBS table provides an INFORMATION_SCHEMA interface to the ADMIN SHOW DDL JOBS command. It provides information about DDL operations in the TiDB cluster, such as the current status, DDL statements, start time, end time, database names, and table names.

USE information_schema; DESC ddl_jobs;
+--------------+-------------+------+------+---------+-------+ | Field | Type | Null | Key | Default | Extra | +--------------+-------------+------+------+---------+-------+ | JOB_ID | bigint(21) | YES | | NULL | | | DB_NAME | varchar(64) | YES | | NULL | | | TABLE_NAME | varchar(64) | YES | | NULL | | | JOB_TYPE | varchar(64) | YES | | NULL | | | SCHEMA_STATE | varchar(64) | YES | | NULL | | | SCHEMA_ID | bigint(21) | YES | | NULL | | | TABLE_ID | bigint(21) | YES | | NULL | | | ROW_COUNT | bigint(21) | YES | | NULL | | | START_TIME | datetime | YES | | NULL | | | END_TIME | datetime | YES | | NULL | | | STATE | varchar(64) | YES | | NULL | | | QUERY | varchar(64) | YES | | NULL | | +--------------+-------------+------+------+---------+-------+ 12 rows in set (0.00 sec)
SELECT * FROM ddl_jobs LIMIT 3\G
*************************** 1. row *************************** JOB_ID: 44 DB_NAME: mysql TABLE_NAME: opt_rule_blacklist JOB_TYPE: create table SCHEMA_STATE: public SCHEMA_ID: 3 TABLE_ID: 43 ROW_COUNT: 0 START_TIME: 2020-07-06 15:24:27 END_TIME: 2020-07-06 15:24:27 STATE: synced QUERY: CREATE TABLE IF NOT EXISTS mysql.opt_rule_blacklist ( name char(100) NOT NULL ); *************************** 2. row *************************** JOB_ID: 42 DB_NAME: mysql TABLE_NAME: expr_pushdown_blacklist JOB_TYPE: create table SCHEMA_STATE: public SCHEMA_ID: 3 TABLE_ID: 41 ROW_COUNT: 0 START_TIME: 2020-07-06 15:24:27 END_TIME: 2020-07-06 15:24:27 STATE: synced QUERY: CREATE TABLE IF NOT EXISTS mysql.expr_pushdown_blacklist ( name char(100) NOT NULL, store_type char(100) NOT NULL DEFAULT 'tikv,tiflash,tidb', reason varchar(200) ); *************************** 3. row *************************** JOB_ID: 40 DB_NAME: mysql TABLE_NAME: stats_top_n JOB_TYPE: create table SCHEMA_STATE: public SCHEMA_ID: 3 TABLE_ID: 39 ROW_COUNT: 0 START_TIME: 2020-07-06 15:24:26 END_TIME: 2020-07-06 15:24:27 STATE: synced QUERY: CREATE TABLE if not exists mysql.stats_top_n ( table_id bigint(64) NOT NULL, is_index tinyint(2) NOT NULL, hist_id bigint(64) NOT NULL, value longblob, count bigint(64) UNSIGNED NOT NULL, index tbl(table_id, is_index, hist_id) ); 3 rows in set (0.01 sec)

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