On Tuesday, July 23, 2024, PG Doc comments form <nore...@postgresql.org> wrote:
> The following documentation comment has been logged on the website: > > Page: https://www.postgresql.org/docs/16/queries-table-expressions.html > Description: > > >> In the second query, we could not have written SELECT * FROM test1 GROUP > BY x, because there is no single value for the column y that could be > associated with each group. The grouped-by columns can be referenced in the > select list since they have a single value in each group. > I think you mis-copied the query - the one on the page has “select x”, not “select *”. David J.
