| From: | Michael Paquier <michael(at)paquier(dot)xyz> |
|---|---|
| To: | Dilip Kumar <dilipbalaut(at)gmail(dot)com> |
| Cc: | a(dot)kozhemyakin(at)postgrespro(dot)ru, pgsql-bugs(at)lists(dot)postgresql(dot)org, Anthonin Bonnefoy <anthonin(dot)bonnefoy(at)datadoghq(dot)com> |
| Subject: | Re: BUG #18947: TRAP: failed Assert("len_to_wrt >= 0") in pg_stat_statements |
| Date: | 2025-06-08 02:39:44 |
| Message-ID: | aET38DIyBht33bIP@paquier.xyz |
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| Lists: | pgsql-bugs |
On Sat, Jun 07, 2025 at 10:19:53PM +0530, Dilip Kumar wrote:
> I didn't get time to debug, I might look into it tomorrow if someone
> doesn't do it before that, but I am able to reproduce the issue and
> seems like problem is with respect to computing the quer_loc in below
> loop, and due to that 'quer_loc' is becoming bigger than query_len and
> hitting the assert.
The loop in charge of assigning the constants in the queries needs to
be smarter in terms of the new locations assigned to sub-queries, here
the VALUES one.
499edb09741b is the origin of the regression, so open item assigned to
me (will look into it later), adding Anthonin in CC.
--
Michael
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