Querying information_schema.TABLES Is Slow in MySQL 5.7 and Earlier
(Doc ID 2038763.1)
Last updated on MARCH 24, 2020
MySQL Server - Version 5.0 to 5.7 [Release 5.0 to 5.7]
Information in this document applies to any platform.
Querying the TABLES table in the Information Schema is slow. This particularly happens when the query has no WHERE clause limiting the database and/or table names and the database has many tables.
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