On Sep 9, 2:21 am, dmit...@gmail.com (Dmitriy Igrishin) wrote: > Hey Nick, > > You may do it with PL/pgSQL more easily with hstore module. > Please, refer tohttp://www.postgresql.org/docs/9.0/static/hstore.html > Please, look at the hstore(record) and populate_record(record, hstore) > function. Hope this helps. > > And I think it will be more faster then you solution. > > Regards, > Dmitriy > > 2010/9/9 Nick <nboutel...@gmail.com> > > > > > I need to dynamically update NEW columns. Ive been inserting the NEW > > values into a temp table, updating them, then passing the temp table > > values back to NEW (is there a better way?). Ive had success with this > > method unless there is a null value... > > > EXECUTE 'CREATE TEMP TABLE new AS SELECT $1.*' USING NEW; > > EXECUTE 'UPDATE new SET ' || dyn_col_name || ' = 1'; > > EXECUTE 'SELECT * FROM new' INTO NEW; > > EXECUTE 'DROP TABLE new'; > > > This last line... > > EXECUTE 'SELECT $1.' || dyn_col_name INTO val USING NEW; > > > gives the ERROR: could not identify column "col_one" in record data > > type. > > > However RAISE EXCEPTION '%',NEW.col_one; > > returns "1" correctly. > > > If col_one does does not start out as a null value, then everything > > works. Why does the passing from temp table back to NEW lose the USING > > functionality? > > > -- > > Sent via pgsql-general mailing list (pgsql-gene...@postgresql.org) > > To make changes to your subscription: > >http://www.postgresql.org/mailpref/pgsql-general- Hide quoted text - > > - Show quoted text -
Thanks Dmitriy, Im guessing that hstore(record) is not compatible with 8.4.4? I get an error "cannot cast type record to hstore". -Nick -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
