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In fact, the latest stable Postgres supports fast, index-only scans for count queries: https://wiki.postgresql.org/wiki/Index-only_scans https://wiki.postgresql

by gmac 13y ago

In fact, the latest stable Postgres supports fast, index-only scans for count queries: https://wiki.postgresql.org/wiki/Index-only_scans https://wiki.postgresql.org/wiki/Index-only_scans.