km wrote: > Hi all, > > i could not do variable substitution in plpgsql procedure. > The variable names are taken as it is but not substituted in the SQL query. > what could be the problem ? Does this example even compile? I doubt that... > code looks like this: > ------------------------------------------------------------------ > CREATE OR REPLACE FUNCTION test(a text) RETURNS SETOF RECORD AS $$ > DECLARE > a text; > b text; I think you meant: DECLARE b text; c text; You redeclared a and never declared c. > BEGIN > > IF a = 'odd' THEN > b := 10; > c := 30; > ELIF a = 'even' THEN > b := 20; > c := 40; > END IF; -- Alban Hertroys alban@xxxxxxxxxxxxxxxxx magproductions b.v. T: ++31(0)534346874 F: ++31(0)534346876 M: I: www.magproductions.nl A: Postbus 416 7500 AK Enschede // Integrate Your World //