WL#1211: Multiple query caches
Affects: Server-7.1 — Status: Un-Assigned — Priority: Medium
Allow user to have several query caches with query hashes evenly distributed among them, to remove possibly hotspot and especially to have maintainance commands not blocking anything for a long queries. FLUSH QUERY CACHE even for 1G query cache may take a while, while other commands we might wish to have, such as SHOW QUERY CACHE CONTENT might lock it for even longer time.
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