On Thursday, July 17, 2025, David G. Johnston <david.g.johns...@gmail.com> wrote:
> On Thursday, July 17, 2025, David Rowley <dgrowle...@gmail.com> wrote: > >> >> I find it hard to imagine that there'd be many people >> > around that would benefit from a global >> "always_use_this_number_of_parallel_workers" GUC. >> > > Just to clarify, the global value would be -1 usually. It would be > another crappy planner hint for important queries to be assigned saying > “make this query go fast even if it doesn’t play nice with others”. > Framing this differently, how about a patch that lets extension authors choose to implement alternative formulas or even provide GUC-driven constants into the planner at the existing spot instead of having to choose a best algorithm. IOW, what would it take to make the proposed patch an extension that a DBA could choose to install and override the current log3 algorithm? David J.
