Hello 2011/6/19 lover boi <lover-boi@xxxxxxxxxx>: > Hi, > > In the following statement, does the custom function get executed twice? > > SELECT > MY_FUNCTION(...), > CASE WHEN MY_FUNCTION(...) = '...' THEN '...' ELSE '...' END > ... > ... > > > If so, is there a way I can make it execute once? I tried this but it gave > me a "Column my_function does not exist" error. > SELECT x, CASE WHEN x THEN .. ELSE .. END FROM (SELECT fce(..) x FROM foo) s; Regards Pavel Stehule > SELECT > > MY_FUNCTION(...) AS my_function, > > CASE WHEN my_function = '...' THEN '...' ELSE '...' END > > ... > > ... > > > Thank you in advance. -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
