FLUSH QUERY CACHE

Defragment the query cache to optimize memory usage. This command reorganizes the cache to eliminate fragmentation without removing existing cached queries.

Description

You can defragment the query cache to better utilize its memory with the FLUSH QUERY CACHE statement. The statement does not remove any queries from the cache.

The RESET QUERY CACHE statement removes all query results from the query cache. The FLUSH TABLES statement also does this.

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