InnoDB: Cannot add field `t_x123` in table `tmp`.`#sql3814_4_4b` because after adding it, the row size is 8127 which is greater... (Doc ID 2150117.1)

Last updated on JUNE 15, 2016

Applies to:

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

Symptoms

 MySQL error log contains warnings such as :

 

Changes

After upgrading to MySQL 5.7,  these warnings appeared when running queries that previously did not cause warnings in 5.5/5.6

Cause

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