2013/5/28 Stephen Frost <sfrost@xxxxxxxxxxx>: > * Moshe Jacobson (moshe@xxxxxxxxxxxx) wrote: >> It seems that the comparison operator "=" is functioning as the assignment >> operator ":=" in this plpgsql trigger script I wrote. I was under the >> impression that "=" is only for comparison and not assignment. If this is >> true, please explain the transcript below. If it's not true, where is this >> documented? I'm using PostgreSQL 9.1.4. > > Both are supported. It's not really documented as using '=' is > considered 'legacy' but it's also extensively used and removing it would > break quite a bit of code for people. > > My general feeling is that we should either document it *as* legacy > or add it to the "list-of-things-to-break-in-10.0". :) should be cleaned and removed same undocumented behave has GET DIAGNOSTICS STATEMENT, ":=" is allowed there :-( note from source code assign_operator>: '='<->/* not documented because it might be removed someday */ <------><------><------><------>| COLON_EQUALS <------><------><------><------>; Regards Pavel > > Thanks, > > Stephen -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
