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For anyone else who encounters this issue, skalpa posted an answer at the above link:
Quote:
This is just an informative message generated by MySQL and meant to tell developers that their DB structure could be more optimized, nothing really serious.
If disabling the debug_mode doesn't make the message disappear, you can remove it by setting the PHP config value mysql.trace_mode to Off.
If you don't have access to php.ini do it by adding the folliwing line to .htaccess in the root of your site:
php_flag mysql.trace_mode off
