From: Tom Lane <tgl@sss.pgh.pa.us>
To: Mark Dilger <mark.dilger@enterprisedb.com>
Cc: PostgreSQL-development <pgsql-hackers@postgresql.org>
Subject: Re: Assert triggered during RE_compile_and_cache
Date: Thu, 05 Aug 2021 19:16:22 -0400
Message-ID: <2437330.1628205382@sss.pgh.pa.us> (raw)
In-Reply-To: <29C525E6-A912-459F-BE27-217F25F76B5E@enterprisedb.com>
References: <0203588E-E609-43AF-9F4F-902854231EE7@enterprisedb.com>
<7F9BFA6F-9BC6-4A27-BFA1-2F01682BD644@enterprisedb.com>
<2426993.1628201727@sss.pgh.pa.us>
<29C525E6-A912-459F-BE27-217F25F76B5E@enterprisedb.com>
Mark Dilger <mark.dilger@enterprisedb.com> writes:
> I have now found lots of cases of this failure. I *believe* the backreference is always greater than 1, and it is always in a capture group which then has the {0} or {0,0} applied to it.
Hm. I thought that this might be an old issue, but I'm not seeing the
crash in pre-v14 branches. That means it's some bug introduced in
the performance improvements I did a few months ago. Open item added.
regards, tom lane
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To: pgsql-hackers@postgresql.org
Cc: tgl@sss.pgh.pa.us, mark.dilger@enterprisedb.com
Subject: Re: Assert triggered during RE_compile_and_cache
In-Reply-To: <2437330.1628205382@sss.pgh.pa.us>
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