Why are my PostgreSQL queries ignoring my composite index, and what are the rules around column order when optimizing slow searches in large tables?
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Why are my PostgreSQL queries ignoring my composite index, and what are the rules around column order when optimizing slow searches in large tables?
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PostgreSQL documentation multicolumn indexes leftmost columns skip scan planner statistics EXPLAIN ANALYZEGoogle ↗
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PostgreSQL documentation multicolumn indexes leftmost columns skip scan planner statistics EXPLAIN ANALYZE Google ↗
- PostgreSQL: Documentation: 17: 11.5. Combining Multiple Indexes · postgresql.org
- PostgreSQL: Documentation: 18: 11.3. Multicolumn Indexes · postgresql.org
- PostgreSQL: Documentation: 15: 11.3. Multicolumn Indexes · postgresql.org
- Efficient Use of PostgreSQL Indexes · devcenter.heroku.com
- PostgreSQL: Documentation: 18: EXPLAIN · postgresql.org
- PostgreSQL: Documentation: 18: 14.1. Using EXPLAIN · postgresql.org