Re: BUG #19072: New-style SQL language function referencing a temp table behaves oddly

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: bernice(dot)southey(at)gmail(dot)com
Cc: pgsql-bugs(at)lists(dot)postgresql(dot)org
Subject: Re: BUG #19072: New-style SQL language function referencing a temp table behaves oddly
Date: 2025-10-04 17:26:00
Message-ID: 1526598.1759598760@sss.pgh.pa.us
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PG Bug reporting form <noreply(at)postgresql(dot)org> writes:
> When created in psql, a new-style SQL language function referencing a temp
> table disappears with the session, as if it were a temporary function.

Yeah, this is expected, since the parser will create a pg_depend
linkage from the function to the temp table.

> When created in pgAdmin, the function survives.

Really? I don't use pgAdmin, but I don't see how it could affect the
object dependency rules. Perhaps it's not closing the originating
session when you think it is?

There is a nearby thread proposing forbidding new-style functions
from having dependencies on temp objects [1]. Curious to know if
you think that'd be a good answer.

regards, tom lane

[1] https://www.postgresql.org/message-id/flat/19cf6ae1-04cd-422c-a760-d7e75fe6cba9%40uni-muenster.de

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