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MC 0.387 · 6 Nov 2026, 20:47 EST

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index-only scans

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index-only scans

3 posts about index-only scans by 2 contributors.

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Articles about index-only scans

Article · PostgreSQL
PostgreSQL Index-Only Scans: How They Work and Why They Sometimes Fail
Learn how PostgreSQL index-only scans work, how INCLUDE indexes and visibility maps affect them, and how to diagnose heap fetches with EXPLAIN ANALYZE.
Bhavya SinghOct 194,4581,000

Article · PostgreSQL

PostgreSQL Index-Only Scans: How They Work and Why They Sometimes Fail

Learn how PostgreSQL index-only scans use covering indexes and visibility maps, why heap fetches still occur, and how to verify scan behavior with EXPLAIN ANALYZE.

Bhavya SinghOct 164,8101,000

Article · PostgreSQL

PostgreSQL Index-Only Scans: Why They Work and When They Fail

Learn how PostgreSQL index-only scans use covering indexes and the visibility map, and how to diagnose heap fetches with EXPLAIN ANALYZE.

Niharika Gupta

Niharika GuptaOct 154,7851,000

index-only scans · by contributions

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Bhavya Singh2 posts · 9.3k reads 2

Niharika Gupta1 post · 4.8k reads

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