Why do database queries slow down over time in PostgreSQL and what are the foundational concepts behind fixing them?
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Fan-out diagram
The searches the AI actually ran for this prompt.
SEED QUERY
Why do database queries slow down over time in PostgreSQL and what are the foundational concepts behind fixing them?
1 real search · 1 real-search pass
PostgreSQL official documentation performance tips EXPLAIN ANALYZE statistics vacuum autovacuum indexesGoogle ↗
OBSERVEDOther / navigational
Badge and edge weight = share of passes that produced the query. Hover a query for its intent and routing format.
Query classes
Google's semantic query class for every sub-query: what kind of answer each search is after, simulated vs real.
ChatGPT real searches (1)
Classes come from the query-classifier (a local Laya model). 1 of 1 calls are low-confidence (under 50%) — hover a query in the table to see its confidence.
Searches and sources
ChatGPT1 real searches · gpt-6
PostgreSQL official documentation performance tips EXPLAIN ANALYZE statistics vacuum autovacuum indexes Google ↗
- PostgreSQL: Documentation: 16: Chapter 14. Performance Tips · postgresql.org
- PostgreSQL: Documentation: 18: Chapter 14. Performance Tips · postgresql.org
- PostgreSQL: Documentation: 17: 24.1. Routine Vacuuming · postgresql.org
- Introduction to VACUUM, ANALYZE, EXPLAIN, and COUNT · wiki.postgresql.org
- Performance Tips · postgresql.org
- Routine Vacuuming · postgresql.org
- pg_stat_statements · postgresql.org
- Use The Index, Luke · use-the-index-luke.com