Re: BUG #18708: regex problem: (?:[^\d\D]){0} asserts with "lp->nouts == 0 && rp->nins == 0"

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: dhyan(at)nataraj(dot)su
Cc: pgsql-bugs(at)lists(dot)postgresql(dot)org
Subject: Re: BUG #18708: regex problem: (?:[^\d\D]){0} asserts with "lp->nouts == 0 && rp->nins == 0"
Date: 2024-11-14 15:25:48
Message-ID: 1936218.1731597948@sss.pgh.pa.us
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PG Bug reporting form <noreply(at)postgresql(dot)org> writes:
> If you run
> SELECT '' ~ '(?:[^\d\D]){0}';
> it will assert with "lp->nouts == 0 && rp->nins == 0"
> This behavior have been introduced in 2a0af7fe460 commit.

Thanks for the report --- I'll dig into this later.

regards, tom lane

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