On Fri, Jun 24, 2022 at 04:09:46PM +0500, Andrey Borodin wrote:
> Hi everyone!
> 
> Sorry for bumping old thread.

Please find this newer thread+patch here ;)
https://www.postgresql.org/message-id/20220614230949.gx29...@telsasoft.com

> On 25 May 2021, at 21:14, Justin Pryzby <pry...@telsasoft.com> wrote:
> > 
> > Such aggregate functions should be dropped before upgrade/restore and then
> > re-created afterwards using the "anycompatible" functions.  The affected
> > functions are: array_append, array_prepend, array_cat, array_position,
> > array_positions, array_remove, array_replace, and width_bucket.
> 
> We've just stumbled upon the problem in our service. Would it be 
> backpatchable to add this check to pg_upgrade?

I guess you mean to backpatch to v14 for people upgrading from v13.

I realized that my latest patch would break upgrades from old servers, which do
not have array_position/s nor width_bucket, so ::reprocedure would fail.  Maybe
Andrey's way is better (checking proname rather than its OID).

-- 
Justin


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