MySQL 8.4 Memory Limits: tmp_table_size vs. temptable_max_ram

I recently got into a bit of a debate about standardizing MySQL 8.4’s internal temporary table configuration. We wanted to cap memory usage efficiently, but relying on rules of thumb isn t enough when production stability is at stake. The main confusion was about how per-query limits fight with global limits. So, rather than guessing, I [ ] O post MySQL 8.4 Memory Limits: tmp_table_size vs.…