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OPTIMIZE/REPAIR TABLE On MyISAM Doubles Size And Degrades Performance in 8.0 Versions < 8.0.22 (Doc ID 2704465.1)

Last updated on AUGUST 26, 2020

Applies to:

MySQL Server - Version 8.0 to 8.0 [Release 8.0]
Information in this document applies to any platform.

Symptoms

After a rebuild via REPAIR TABLE or OPTIMIZE TABLE,   some MyISAM tables become very slow to query,  and much larger in size.

Changes

This occurs after an upgrade to MySQL 8.0.

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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