On Fri, Feb 19, 2021 at 10:43 AM Laurenz Albe <laurenz.albe@xxxxxxxxxxx> wrote: > At execution time, PostgreSQL will use as many of the planned workers > as are currently available (max_parallel_workers). Thanks, but just to make it clear, assuming I execute almost simultanously two identical queries that can be therefore be parallelized, does that mean that the first one will be executed with the max available parallele capacity and the second will "starve" on parllelism being executed sequentially. Is this correct? As a consequence to that, this also could mean that a query over a small table could take more advanatge (in parallel sense) than a scan on a larger table that was issued just a moment after (assuming both table can be scanned in parallel), right? Luca