On Sat, Feb 23, 2019 at 1:06 PM Gunther <r...@gusw.net> wrote: > I thought to keep my index tight, I would define it like this: > > CREATE UNIQUE INDEX Queue_idx_pending ON Queue(jobId) WHERE pending; > > so that only pending jobs are in that index. > > When a job is done, follow up work is often inserted into the Queue as > pending, thus adding to that index.
How many distinct jobIds are there in play, roughly? Would you say that there are many fewer distinct Jobs than distinct entries in the index/table? Is the number of jobs fixed at a fairly low number, that doesn't really grow as the workload needs to scale up? -- Peter Geoghegan
