Re: segfault due to invalid cached plan

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Nicolas Thauvin <nicolas(dot)thauvin(at)dalibo(dot)com>
Cc: PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: segfault due to invalid cached plan
Date: 2018-03-28 14:39:02
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Nicolas Thauvin <nicolas(dot)thauvin(at)dalibo(dot)com> writes:
> A customer sent us a core dump of the crash of the background worker of
> the powa extension, running on 9.6.8 along side with cstore_fdw.
> The background worker loops on a plpgsql function, which then execute
> another plpgsql function that issues the query "TRUNCATE
> powa_statements_history_current".

I think the odds are very high that this is a cstore_fdw bug. The
core backend simply doesn't do anything very interesting with TRUNCATE.

regards, tom lane

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