My Oracle Support Banner

MySQL Slower In Newer MySQL Releases Than In MySQL 5.6 When Derived Table Is Merged (Doc ID 2552784.1)

Last updated on APRIL 18, 2022

Applies to:

MySQL Server - Version 5.7 and later
Information in this document applies to any platform.

Goal

Explain why MySQL 5.7 is slower on certain queries because derived tables are merged. MySQL 5.6 is more performing because tables are materialized and auto-key is chosen. 

Solution

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
Goal
Solution
References


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