Laurenz Albe <laurenz.albe@xxxxxxxxxxx> writes: > On Sat, 2021-06-05 at 00:12 +1200, David Rowley wrote: >> As for the call to generate_series, you're not likely to ever get any >> great estimation from that. > "generate_series" has a support function from v12 on: True, but I don't think it can do anything with non-constant inputs, as we have in the OP's case. regards, tom lane