From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
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To: | Frits Jalvingh <jal(at)etc(dot)to> |
Cc: | pgsql-performance(at)lists(dot)postgresql(dot)org |
Subject: | Re: Fwd: temp_file_limit? |
Date: | 2022-12-18 19:28:32 |
Message-ID: | 462805.1671391712@sss.pgh.pa.us |
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Lists: | pgsql-performance |
Frits Jalvingh <jal(at)etc(dot)to> writes:
> Just to be clear: my real question is: why is temp_file_limit not working
> at the specified size?
I've not looked at that code lately, but I strongly suspect that
it's implemented in such a way that it's a per-process limit, not a
per-session limit. So each parallel worker could use up that much
space.
It's also possible that you've found an actual bug, but without
a reproducer case nobody's going to take that possibility too
seriously. We're unlikely to accept "the limit should work
across multiple processes" as a valid bug though. That would
require a vastly more complicated implementation.
regards, tom lane
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