Re: PostgreSQL 15 Beta 4 release announcement draft - Mailing list pgsql-hackers

On 9/7/22 4:02 AM, Alvaro Herrera wrote:
> Hi Jonathan,
> 
> On 2022-Sep-06, Jonathan S. Katz wrote:
> 
>> * [`MERGE`](https://www.postgresql.org/docs/15/sql-merge.html) statements are
>> explicitly rejected inside of a
>> [common-table expression](https://www.postgresql.org/docs/15/queries-with.html)
>> (aka `WITH` query) and
>> [`COPY`](https://www.postgresql.org/docs/15/sql-copy.html) statements.
> 
> I would say "Avoid crash in MERGE when called inside COPY or a CTE by
> throwing an error early", so that it doesn't look like we're removing a
> feature.

Yeah, we don't want to create the wrong impression. I updated it per 
your suggestion (with minor tweaks) and removed the line that David 
mentioned around the test fix.

Thanks!

Jonathan