mysql.innodb_index_stats
You are viewing an old version of this article. View
the current version here.
The mysql.innodb_index_stats table contains the following fields:
| Field | Type | Null | Key | Default | Description |
|---|---|---|---|---|---|
| database_name | varchar(64) | NO | PRI | NULL | |
| table_name | varchar(64) | NO | PRI | NULL | |
| index_name | varchar(64) | NO | PRI | NULL | |
| last_update | timestamp | NO | current_timestamp() | on update current_timestamp() | |
| stat_name | varchar(64) | NO | PRI | NULL | |
| stat_value | bigint(20) unsigned | NO | NULL | ||
| sample_size | bigint(20) unsigned | YES | NULL | ||
| stat_description | varchar(1024) | NO | NULL |
Example
SELECT * FROM mysql.innodb_index_stats\G
*************************** 1. row ***************************
database_name: mysql
table_name: gtid_slave_pos
index_name: PRIMARY
last_update: 2017-08-19 20:38:34
stat_name: n_diff_pfx01
stat_value: 0
sample_size: 1
stat_description: domain_id
*************************** 2. row ***************************
database_name: mysql
table_name: gtid_slave_pos
index_name: PRIMARY
last_update: 2017-08-19 20:38:34
stat_name: n_diff_pfx02
stat_value: 0
sample_size: 1
stat_description: domain_id,sub_id
*************************** 3. row ***************************
database_name: mysql
table_name: gtid_slave_pos
index_name: PRIMARY
last_update: 2017-08-19 20:38:34
stat_name: n_leaf_pages
stat_value: 1
sample_size: NULL
stat_description: Number of leaf pages in the index
*************************** 4. row ***************************
database_name: mysql
table_name: gtid_slave_pos
index_name: PRIMARY
last_update: 2017-08-19 20:38:34
stat_name: size
stat_value: 1
sample_size: NULL
stat_description: Number of pages in the index
*************************** 5. row ***************************
database_name: test
table_name: ft
index_name: FTS_DOC_ID_INDEX
last_update: 2017-09-15 12:58:39
stat_name: n_diff_pfx01
stat_value: 0
sample_size: 1
stat_description: FTS_DOC_ID
*************************** 6. row ***************************
database_name: test
table_name: ft
index_name: FTS_DOC_ID_INDEX
last_update: 2017-09-15 12:58:39
stat_name: n_leaf_pages
stat_value: 1
sample_size: NULL
stat_description: Number of leaf pages in the index
...
Comments
Comments loading...
Content reproduced on this site is the property of its respective owners,
and this content is not reviewed in advance by MariaDB. The views, information and opinions
expressed by this content do not necessarily represent those of MariaDB or any other party.
