On Thu, 18 Sept 2025 at 19:45, Jean-Christophe BOGGIO <postgre...@thefreecat.org> wrote: > Ok but then why is it doing it on the AD table? Is it because of the > number of rows?
It's hard to tell as I don't have a clear view on which columns are from which tables. Perhaps "ad" can Index Only Scan because all of the columns required are in an index but with "oeu" there's a column being used that's not indexed? David
