How to fix slow database queries?
4 months ago
Index the foreign keys and check your EXPLAIN plan. That catches 90% of it
4 months ago
Add indexes on your join columns and stop running SELECT * on tables with millions of rows. There's also a thread from 2018 that answers this exact question in detail — search for 'slow query tuning guide'. The documentation has the full optimization workflow. I can explain it again
4 months ago
Explain plan is your friend here. Find the bottleneck and optimize it.
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