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. Thank you for putting this together! -- Álvaro Herrera 48°01'N 7°57'E — https://www.EnterpriseDB.com/ "Those who use electric razors are infidels destined to burn in hell while we drink from rivers of beer, download free vids and mingle with naked well shaved babes." (http://slashdot.org/comments.pl?sid=44793&cid=4647152)
