On 2013-08-20 14:15:55 +0200, David E. Wheeler wrote: > Hi Pavel, > > On Aug 20, 2013, at 2:11 PM, Pavel Stehule <pavel.stehule@gmail.com> wrote: > > >> david=# DO $$ > >> david$# BEGIN > >> david$# WITH now AS (SELECT now()) > >> david$# PERFORM * from now; > >> david$# END; > >> david$# $$; > >> ERROR: syntax error at or near "PERFORM" > >> LINE 4: PERFORM * from now; > >> ^ > >> Parser bug in PL/pgSQL, perhaps? > > > > no > > > > you cannot use a PL/pgSQL statement inside SQL statement. > > Well, there ought to be *some* way to tell PL/pgSQL to discard the result. Right now I am adding a variable to select into but never otherwise use. Inelegant, IMHO. Perhaps I’m missing some other way to do it? > > If so, it would help if the hint suggesting the use of PERFORM pointed to such alternatives.
Not that that's elegant but IIRC PERFORM (WITH ...) ought to work. I don't think the intermingled plpgsql/sql grammars allow a nice way right now.
+1
Pavel
Greetings,
Andres Freund -- Andres Freund http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services
