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ethanseal
12 days ago
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A SQL Heuristic: ORs Are Expensive
Highly recommend
https://use-the-index-luke.com/
It's very readable - I always ask new hires and interns to read it.
progmetaldev
12 days ago
[–]
This website taught me a ton, even after I thought I knew more than enough about performance. Just seeing how different databases generate and execute their SQL is a huge boon (and sometimes extremely surprising when looking at one DBMS to another).
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It's very readable - I always ask new hires and interns to read it.