Bases de datosPlanet PostgreSQL
Bases de datos
PostgreSQL's parallel query planner charges two fees for going parallel: a setup cost per Gather node and a per-row cost for moving data from workers to… (I consult on PostgreSQL through PGX Inc..)
Whether your query's leader process joins the work or just supervises depends on this boolean, and the performance question it settles is subtle. (I consult on PostgreSQL through PGX Inc..)
What raised 'new row violates row-level security policy for table' in PostgreSQL 17, measured: inserts, RETURNING, upserts, MERGE and four message forms.
MongoDB 9.0 is here. Strip away the marketing around AI, Atlas, and “the best version ever built”, and MongoDB 9.0 starts to look a lot like MongoDB 8.4. Sure, there are some useful changes, but I don’t see a single feature that…