Обсуждение: function return type is a setof some column type
hi all, i'm new to the list, so if this is an off-topic question, or has already been posed, i apologize... i'm trying to figure out how to get the following test situation to work: creating a function like below fails... CREATE FUNCTION test_function() RETURNS SETOF table.column%TYPE AS $$ SELECT 1; $$ LANGUAGE SQL; yet i know the %TYPE format works because the below succeeds... CREATE FUNCTION test_function() RETURNS table.column%TYPE AS $$ SELECT 1; $$ LANGUAGE SQL; as does the SETOF option because the following also succeeds... CREATE FUNCTION test_function() RETURNS SETOF int4 AS $$ SELECT 1; $$ LANGUAGE SQL; can anyone help me figure out how to get the first function declaration to work? and yes, i know i could just look up the type of the column of interest, but i'm trying to make the function somewhat independent of table alterations (the whole reason for the %TYPE inclusion in postgresql in the first place!) thanks for any help! murat
whoa. sorry about this post. i already posted this about 1 week ago, and it's been resolved. i have no clue why it is showing up again on the list. murat On 30 Jan 2006, at 18:19, Murat Tasan wrote: > hi all, i'm new to the list, so if this is an off-topic question, > or has already been posed, i apologize... > > i'm trying to figure out how to get the following test situation to > work: > > creating a function like below fails... > > CREATE FUNCTION test_function() RETURNS SETOF table.column%TYPE AS $ > $ SELECT 1; $$ LANGUAGE SQL; > > yet i know the %TYPE format works because the below succeeds... > > CREATE FUNCTION test_function() RETURNS table.column%TYPE AS $$ > SELECT 1; $$ LANGUAGE SQL; > > as does the SETOF option because the following also succeeds... > > CREATE FUNCTION test_function() RETURNS SETOF int4 AS $$ SELECT 1; $ > $ LANGUAGE SQL; > > can anyone help me figure out how to get the first function > declaration to work? > and yes, i know i could just look up the type of the column of > interest, but i'm trying to make the function somewhat independent > of table alterations (the whole reason for the %TYPE inclusion in > postgresql in the first place!) > > thanks for any help! > > murat > > ---------------------------(end of > broadcast)--------------------------- > TIP 4: Have you searched our list archives? > > http://archives.postgresql.org
On Sat, 4 Feb 2006, Murat Tasan wrote: > whoa. sorry about this post. i already posted this about 1 week > ago, and it's been resolved. i have no clue why it is showing up > again on the list. Probably just that a copy was sitting around for moderator approval, for example, if you weren't subscribed when you first sent it. Since there were a few messages that seemed to just come through, that's probably it. That happens occasionally, don't worry about it. ;)