In 9af4159f in combination with cb9b66d3 a bunch of error messages were changed from something like
"SELECT FOR UPDATE/SHARE is not allowed with UNION/INTERSECT/EXCEPT" to "row-level locks are not allowed with UNION/INTERSECT/EXCEPT" because the intermediate state of "SELECT FOR UPDATE/SHARE/KEY UPDATE/KEY SHARE is not allowed with UNION/INTERSECT/EXCEPT" was presumably considered too bulky. I think that went too far in some cases. For example, the new message "row-level locks must specify unqualified relation names" has little to do with its original meaning. In general, I find these new wordings to be a loss of clarity. There is no indication on the SELECT man page or in the documentation index what a "row-level lock" is at all. I would suggest that these changes be undone, except that the old "SELECT FOR ..." be replaced by a dynamic string that reverse-parses the LockingClause to provide the actual clause that was used. -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers