| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Mark Dilger <mark(dot)dilger(at)enterprisedb(dot)com> |
| Cc: | PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Assert triggered during RE_compile_and_cache |
| Date: | 2021-08-05 23:16:22 |
| Message-ID: | 2437330.1628205382@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
Mark Dilger <mark(dot)dilger(at)enterprisedb(dot)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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