Dawid Kuroczko wrote:
>work_mem = 102400
>...I tried tweaking cpu_*, work_mem, effective_cache and so on, but without
>any luck.
I'm hoping you didn't tweak it enough! I posted something similar
this a while ago, but haven't since got around to figuring out
a useful test case to send to the list.
Try reducing your work_mem down to 1000 or so and things should
start doing what you expect.
Sam