MAX_JOIN_SIZE or SQL_BIG_SELECTS Error
If you encounter the following error message in Joomla 4.4 onwards within YourSites then your YourSites server has been configured with a lower MAX_JOIN_SIZE than the default. This can end up setting SQL_BIG_SELECTS to a value of zero automatically.
The SELECT would examine more than MAX_JOIN_SIZE rows; check your WHERE and use SET SQL_BIG_SELECTS=1 or SET MAX_JOIN_SIZE=# if the SELECT is okay
You can probably resolve this by configuring a custom database session query on the advanced tab of the YourSites configutation (https://yourdomain/administrator/index.php?option=com_config&view=component&component=com_yoursites) and scroll down on the "advanced" tab
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https://extensions.joomla.org/extension/yoursites-manager/
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