Re: functions are returns columns - Mailing list pgsql-sql

From Tom Lane
Subject Re: functions are returns columns
Date
Msg-id 19335.1194723995@sss.pgh.pa.us
Whole thread Raw
In response to Re: functions are returns columns  (Gregory Stark <stark@enterprisedb.com>)
Responses Re: functions are returns columns  (Gregory Stark <stark@enterprisedb.com>)
List pgsql-sql
Gregory Stark <stark@enterprisedb.com> writes:
> You're almost there:

> CREATE FUNCTION getfoo (IN int, OUT int, OUT int) returns setof record(int,int) AS $$
>   SELECT fooid, foosubid FROM foo WHERE fooid = $1;
> $$ LANGUAGE SQL;

Not quite --- it's just "returns setof record".  The output column types
are defined by the OUT parameters.  The only reason you need the returns
clause is to have a place to stick the "setof" specification ...
        regards, tom lane


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