Poor performance of REGEX functions in version 8.0
(Doc ID 2796456.1)
Last updated on APRIL 12, 2022
Applies to:MySQL Server - Version 8.0 and later
Information in this document applies to any platform.
Queries using REGEX function poorly in version 8.0 when compared to version 5.6/5.7
MySQL Server version 8.0 uses a new Unicode Character Set library , ICU (http://site.icu-project.org/).
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