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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Andrew Dunstan <andrew@dunslane.net>
cc: Andres Freund <andres@anarazel.de>, Tomas Vondra <tomas@vondra.me>,
        Jakub Wartak <jakub.wartak@enterprisedb.com>,
        Robert Haas <robertmhaas@gmail.com>,
        PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Subject: Re: scalability bottlenecks with (many) partitions (and more)
In-reply-to: <52fccecc-0bce-4317-b485-7eb77c8bd9e6@dunslane.net>
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Comments: In-reply-to Andrew Dunstan <andrew@dunslane.net>
	message dated "Tue, 04 Mar 2025 18:25:53 -0500"
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Date: Tue, 04 Mar 2025 19:16:33 -0500
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Andrew Dunstan <andrew@dunslane.net> writes:
> On 2025-03-04 Tu 5:28 PM, Tom Lane wrote:
>> ... I eventually concluded that there's
>> something wrong with the "scalar glob()" idiom you used.

> Well, in scalar context it should give us back the first item found, or 
> undef if nothing is found, AIUI.

That's what I would have thought too, but it didn't seem to work that
way when I was testing the logic standalone: the script processed or
skipped directories according to no rule that I could figure out.

Anyway, for the moment I think we're all right with just the
directory path fix.

			regards, tom lane