Group By Tinytext Column Takes Very Long time
(Doc ID 2495469.1)
Last updated on FEBRUARY 03, 2019
Applies to:MySQL Server - Version 5.6 to 5.7 [Release 5.6 to 5.7]
Information in this document applies to any platform.
Simple Group By on a Tinytext Column will take very long time to finish.
The select statement will take hours to complete. If Column b is varchar, the query on same table will only cost a few seconds.
New created tables or changed the Column type.
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