Database
Christophe Pettus: All Your GUCs in a Row: parallel_setup_cost and parallel_tuple_cost
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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..)
Source：https://postgr.es/p/9xyPreviousChristophe Pettus: All Your GUCs in a Row: parallel_leader_participationNextShow HN: Claude Opus 5.5 Video prompts and skills
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