Information Schema QUERY_CACHE_INFO Table

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MariaDB starting with 5.5.31

The QUERY_CACHE_INFO table was introduced in MariaDB 5.5.31

Description

The table is not a standard Information Schema table, and is a MariaDB extension.

The QUERY_CACHE_INFO plugin allows to see the contents of the query cache. It creates a table in the INFORMATION_SCHEMA database that shows all queries that are in the cache. One must have the PROCESS privilege (see GRANT) to use this table.

SELECT statement_schema, statement_text, result_blocks_count, result_blocks_size FROM information_schema.query_cache_info;
+------------------+------------------+---------------------+--------------------+
| statement_schema | statement_text   | result_blocks_count | result_blocks_size |
+------------------+------------------+---------------------+--------------------+
| test             | select * from t1 |                   1 |                512 |
+------------------+------------------+---------------------+--------------------+

Statistics

New features are planned to be implemented, including a per query statistics, for more info check MDEV-4682

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