On Tue, 13 Jun 2023 at 21:30, Pavel Stehule <pavel.stehule@gmail.com> wrote: > út 13. 6. 2023 v 11:21 odesílatel James Pang (chaolpan) <chaolpan@cisco.com> napsal: >> When join two table on multiple columns equaljoin, rows estimation always use selectivity = multiplied by distinct multiple individual columns, possible to use extended n-distinct statistics on multiple columns? >> >> PG v14.8-1, attached please check test case with details. > > There is not any support for multi tables statistic
I think it's probably worth adjusting the docs to mention this. It seems like it might be something that could surprise someone.