DatenbankenPlanet PostgreSQLEnglisch (hoher Informationsgehalt bei geringem lokalem Volumen)
Datenbanken
Query planning is a two-job problem: rewrite your SQL into a better shape, then search billions of possible join orders for the cheapest one.
A NOT IN query can return the wrong answer without telling you. It is valid SQL, it runs without an error, and it hands back a perfectly well-formed result set that happens to be empty when it should not be. No warning, no hint, nothing in…
Force the use of the partition key and protect your PostgreSQL server from full partition scans
PostgreSQL's table access method interface lets you plug in alternative storage engines.