Supabase Postgres Best Practices

It covers eight categories of performance rules, from critical items like missing indexes and connection pooling to advanced features, each with before/after SQL examples and query plan analysis. Use it when writing queries, designing schemas, or debugging performance issues. The rules are well-prioritized by impact, which is helpful when you're trying to figure out what actually matters versus what's just nice to have. Heavy emphasis on RLS patterns and Supabase-specific gotchas, so it's most valuable if you're in that ecosystem, though the core Postgres advice applies anywhere.