2/12/2024 0 Comments Postgres lateral joinMax_worker_processes > max_parallel_workers > max_parallel_workers_per_gather How big a table is to start using Parallel Query (bigger than 8MB). min_parallel_table_scan_sizeĭefaults to 8MB. If max_parallel_workers set to 2, but you have max_parallel_workers_per_gather set to 6, then you still only get 2 workers. Max number of workers to use for Parallel Query. max_parallel_workers_per_gatherĠ means disabled Parallel Query defaults to 2 (enabled). If you have spare CPU, IO, Memory to splurge, enjoy the benefit.Ĭonfigs we can change for Parallel Query. Parallel Query does use more CPU, IO, Memory.
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