Re: How to pass array of values to a pgplsql function

Thanks, Erik another possible solution would also be this.

Here it is in case you are interested.

On 7/18/06, Tony Wasson <ajwasson(at)gmail(dot)com> wrote:
> On 7/18/06, Curtis Scheer <Curtis(at)daycos(dot)com> wrote:
> > Does anyone have any examples of how I would make a stored procedure
> > in plpgsql that would allow for passing a list or arrays of values
> > to be used in an sql IN clause? Like so: select * from table where
field1 in (values).
> >

Ahhh... Here's an example using Tom's recommended field=ANY (arrayvalue)
SQL.

CREATE TABLE ids
(
id INTEGER
, PRIMARY KEY (id)
);

INSERT INTO ids VALUES (1);
INSERT INTO ids VALUES (2);
INSERT INTO ids VALUES (3);

CREATE OR REPLACE FUNCTION example_array_input(INT[]) RETURNS SETOF ids AS
$BODY$ DECLARE
in_clause ALIAS FOR $1;
clause TEXT;
rec RECORD;
BEGIN
FOR rec IN SELECT id FROM ids WHERE id = ANY(in_clause)
LOOP
RETURN NEXT rec;
END LOOP;
-- final return
RETURN;
END
$BODY$ language plpgsql;

SELECT * FROM example_array_input('{1,2,4,5,6}'::INT[]);

---------------------------(end of broadcast)---------------------------

>>Well, a good thing to note here is that there is a very distinct
>>semantic difference between an array in postgres and what IN clauses
>>take as input: and array
>>is a data type whereas IN clauses take a parenthesized list of comma
>>separated values. So, if you pass an array into a function wherein
>>you then need
>>to use those values in an IN clause, you can build yourself an string of
>>the values in the array, comma separated of course.