Re: BUG #17229: Segmentation Fault after upgrading to version 13

On Tue, Oct 26, 2021 at 2:28 AM Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Alexander Korotkov <aekorotkov@gmail.com> writes:
> > On Mon, Oct 25, 2021 at 4:49 PM Efrain J. Berdecia <ejberdecia@yahoo.com> wrote:
> >> On a separate note, applying 13.4 on a running cluster caused some issues with;
> >> "could not load library "/usr/pgsql-13/lib/plpgsql.so": /usr/pgsql-13/lib/plpgsql.so: undefined symbol:
EnsurePortalSnapshotExists"
>
> That sounds a lot like the OP hadn't actually restarted the server,
> or at least not right away.  A 13.4 plpgsql.so loading into a 13.3
> server would do that.
>
> > Not sure what is our policy on introducing incompatibilities between
> > extensions and postgres binary in minor releases...
>
> We've done that before, we'll do it again.  You can't realistically
> fix many bugs without adding new functions.

OK, thank you for the clarification!

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Regards,
Alexander Korotkov