pá 6. 5. 2022 v 1:28 odesílatel David G. Johnston < david.g.johns...@gmail.com> napsal:
> On Mon, May 2, 2022 at 10:02 PM Pavel Stehule <pavel.steh...@gmail.com> > wrote: > >> >> >> út 3. 5. 2022 v 6:57 odesílatel Tom Lane <t...@sss.pgh.pa.us> napsal: >> >>> Pavel Stehule <pavel.steh...@gmail.com> writes: >>> > there is really something strange (see attached file). Looks so this >>> issue >>> > is much more related to planning time than execution time >>> >>> You sure there's not something taking an exclusive lock on one of these >>> tables every so often? >>> >> >> I am almost sure, I can see this issue only every time when I set a >> higher work mem. I don't see this issue in other cases. >> >>> >>> > What are the values of work_mem and hash_mem_multiplier for the two cases? > (2022-05-06 07:35:21) prd_aukro=# show work_mem ; ┌──────────┐ │ work_mem │ ├──────────┤ │ 400MB │ └──────────┘ (1 řádka) Čas: 0,331 ms (2022-05-06 07:35:32) prd_aukro=# show hash_mem_multiplier ; ┌─────────────────────┐ │ hash_mem_multiplier │ ├─────────────────────┤ │ 1 │ └─────────────────────┘ (1 řádka) > David J. >
