column_stats
This page is part of MariaDB's Documentation.
The parent of this page is: System Tables for MariaDB Enterprise Server
Topics on this page:
Overview
Statistics on Columns
USAGE
DETAILS
SYNONYMS
SCHEMA
CREATE TABLE `column_stats` (
`db_name` varchar(64) NOT NULL,
`table_name` varchar(64) NOT NULL,
`column_name` varchar(64) NOT NULL,
`min_value` varbinary(255) DEFAULT NULL,
`max_value` varbinary(255) DEFAULT NULL,
`nulls_ratio` decimal(12,4) DEFAULT NULL,
`avg_length` decimal(12,4) DEFAULT NULL,
`avg_frequency` decimal(12,4) DEFAULT NULL,
`hist_size` tinyint(3) unsigned DEFAULT NULL,
`hist_type` enum('SINGLE_PREC_HB','DOUBLE_PREC_HB','JSON_HB') DEFAULT NULL,
`histogram` longblob DEFAULT NULL,
PRIMARY KEY (`db_name`,`table_name`,`column_name`)
)
PARAMETERS
SKYSQL
PRIVILEGES
EXAMPLES
ERROR HANDLING
FEATURE INTERACTION
RESPONSES
DIAGNOSIS
ISO 9075:2016
CHANGE HISTORY
Release Series | History |
---|---|
23.08 Enterprise |
|
23.07 Enterprise |
|
10.6 Enterprise |
|
10.6 Community |
|
10.5 Enterprise |
|
10.5 Community |
|
10.4 Enterprise |
|
10.4 Community |
|
10.3 Enterprise |
|
10.3 Community |
|
10.2 Enterprise |
|
10.2 Community |
|
Release Series | History |
---|---|
23.08 Enterprise |
|
23.07 Enterprise |
|
10.6 Enterprise |
|
10.5 Enterprise |
|
10.4 Enterprise |
|
RELATED TOPICS
EXTERNAL REFERENCES
Additional information on this topic may be found in the MariaDB Public Knowledge Base.