TABLE_STORAGE_STATS
TABLE_STORAGE_STATS
表提供有关由存储引擎 (TiKV) 存储的表大小的信息。
USE INFORMATION_SCHEMA;
DESC TABLE_STORAGE_STATS;
输出结果如下:
+--------------------+-------------+------+------+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+--------------------+-------------+------+------+---------+-------+
| TABLE_SCHEMA | varchar(64) | YES | | NULL | |
| TABLE_NAME | varchar(64) | YES | | NULL | |
| TABLE_ID | bigint(21) | YES | | NULL | |
| PEER_COUNT | bigint(21) | YES | | NULL | |
| REGION_COUNT | bigint(21) | YES | | NULL | |
| EMPTY_REGION_COUNT | bigint(21) | YES | | NULL | |
| TABLE_SIZE | bigint(64) | YES | | NULL | |
| TABLE_KEYS | bigint(64) | YES | | NULL | |
+--------------------+-------------+------+------+---------+-------+
8 rows in set (0.00 sec)
CREATE TABLE test.t1 (id INT);
INSERT INTO test.t1 VALUES (1);
SELECT * FROM TABLE_STORAGE_STATS WHERE table_schema = 'test' AND table_name = 't1'\G
输出结果如下:
*************************** 1. row ***************************
TABLE_SCHEMA: test
TABLE_NAME: t1
TABLE_ID: 56
PEER_COUNT: 1
REGION_COUNT: 1
EMPTY_REGION_COUNT: 1
TABLE_SIZE: 1
TABLE_KEYS: 0
1 row in set (0.00 sec)
TABLE_STORAGE_STATS
表各列字段含义如下:
TABLE_SCHEMA
:表所在 schema 名字TABLE_NAME
:表名TABLE_ID
:表 IDPEER_COUNT
:副本个数REGION_COUNT
:表所在的 Region 个数EMPTY_REGION_COUNT
:没有该表数据的 Region 个数TABLE_SIZE
:数据量大小,单位 MiBTABLE_KEYS
:表记录个数