On Tue, 2024-01-23 at 16:31 +0200, kaido vaikla wrote: > pg_pumpall (13.4) changes owner of the extension. > > [Extension created by user A, dump restored by user B -> Extension objects belong to B] > > Manual says "The user who runs CREATE EXTENSION becomes the owner of the extension". > So pg_dumpall is not aware who ran "CREATE EXTENSION"? The user who runs CREATE EXTENSION is the user who restores the dump, hence the changed ownership of the extension objects. There is no ALTER EXTENSION ... OWNER TO to change the owner to the original user, which is probably what would be needed in this case. This is arguably a bug. Trawling the archives, I found this pertinent thread: https://www.postgresql.org/message-id/flat/4E1F1072.3010300%40enterprisedb.com I looked for the referenced discussion, and all I found was this: https://www.postgresql.org/message-id/flat/21857.1297101968%40sss.pgh.pa.us#e2697a586e2aecbe175d3ce1b7f70bf2 That sounds to me like ALTER EXTENSION ... OWNER TO was originally planned, but never implemented: "BTW, on trying this I notice that pg_dump's default approach to ownership doesn't work because of the lack of an ALTER EXTENSION OWNER TO command. I'm going to go ahead and add extowner to the catalog anyway, because it's easy and I'm convinced we're going to want it later. But I don't feel like writing ALTER EXTENSION OWNER TO right now, so pg_dump will continue its current behavior of creating the extension as the user running the script." Obviously nobody has felt like implementing ALTER EXTENSION ... OWNER TO in the dozen years that followed that statement... This was probably not a real problem for anybody, because traditionally you needed a superuser to run CREATE EXTENSION, and functions are executable by everybody by default, so you normally don't notice a difference. Now that we have trusted extensions that don't require a superuser to create, things might have changed. It would be interesting to know if you have a real problem with the current behavior, which would be an argument in favor of fixing the omission. Yours, Laurenz Albe
