Passing arrays

How do you get an array of elements to be passed to a stored proc such that you can use the array in a SELECT statement in the WHERE clause

 - e.g.  WHERE field IN (array) etc...

CREATE OR REPLACE FUNCTION sp_report_retail_sales(int8[]) RETURNS SETOF sp_report_retail_sales_type AS '
DECLARE
-------[Parameters]-------
        prod_id ALIAS FOR $1;
-------[Variables]--------
        retset record;
BEGIN

        FOR retset IN
                SELECT  tbl_prdcrd.fld_prdcrd_id,
                        count (tbl_tranitem.fld_tranitem_productid) as num_sales,
                        sum (tbl_tranitem.fld_tranitem_price * tbl_tranitem.fld_tranitem_quantity) as base_total,
                        sum (tbl_tranitem.fld_tranitem_price * tbl_tranitem.fld_tranitem_quantity * tbl_tranitem.fld_tranitem_gst) as gst_total

                FROM    tbl_prdcrd INNER JOIN tbl_tranitem ON tbl_prdcrd.fld_prdcrd_id = tbl_tranitem.fld_tranitem_productid

                        INNER JOIN tbl_tran ON tbl_tranitem.fld_tranitem_transactionid = tbl_tran.fld_tran_id
                WHERE   tbl_prdcrd.fld_prdcrd_id IN (prod_id)
                GROUP BY tbl_prdcrd.fld_prdcrd_id,
                tbl_prdcrd.fld_prdcrd_type
                                                LOOP
       
                RETURN NEXT retset;
               
        END LOOP;
       
        RETURN;
END;
'  LANGUAGE 'plpgsql' IMMUTABLE;

We were calling the procedure as follows
select * from sp_report_retail_sales1 ('{1,3}');

We keep getting issues with casting.

<snip>

WARNING:  Error occurred while executing PL/pgSQL function sp_report_retail_sale
s_01
WARNING:  line 8 at for over select rows
ERROR:  Unable to identify an operator '=' for types 'bigint' and 'bigint[]'
        You will have to retype this query using an explicit cast

</snip>

Trying the parameter as text worked, but gave 0 rows in result set.

,

Mike Weaver
Software Developer

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