My Oracle Support Banner

MySQL Character set affects varchar joins (Doc ID 1305485.1)

Last updated on MARCH 28, 2024

Applies to:

MySQL Server - Version 4.0 to 5.5 [Release 4.0 to 5.5]
Information in this document applies to any platform.


A query was constructed that joins across two or more tables. All of the appropriate columns appear indexed but the query still runs slowly.


To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.