| From: | Richard Guo <guofenglinux(at)gmail(dot)com> |
|---|---|
| To: | Егор Чиндяскин <kyzevan23(at)mail(dot)ru> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>, PostgreSQL mailing lists <pgsql-bugs(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: Re[2]: BUG #17561: Server crashes on executing row() with very long argument list |
| Date: | 2022-08-01 10:03:44 |
| Message-ID: | CAMbWs48GiU-qucoJwH-p0pUY0OnrxZPXQjv7+HGzEPv6D18Vpg@mail.gmail.com |
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| Lists: | pgsql-bugs |
On Mon, Aug 1, 2022 at 3:17 PM Егор Чиндяскин <kyzevan23(at)mail(dot)ru> wrote:
> Thank you, Tom! The fix works for that case, but there is another one.
> I got server crashed while executing the following script:
>
> (echo "SELECT * FROM json_to_record('{\"0\":0 ";for((i=1;i<100001;i++));do
> echo ",\"$i\":$i";done; echo "}') as x("; echo "\"0\"
> int";for((i=1;i<100001;i++));do echo ",\"$i\" int";done;echo ")") | psql
>
Thanks for the report! This is another place that we construct a tupdesc
with more than MaxAttrNumber attributes, via RangeFunctions this time.
Regarding the fix, how about we check the length of coldeflist against
MaxTupleAttributeNumber in transformRangeFunction()?
Thanks
Richard
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