wrote: > > Hello Lister, > I am curios whether I can emulate the Oracle pipelined functions > functionality in PG too (using RETURN NEXT ). For more > information and examples about Oracle pipelined functions see: > > http://asktom.oracle.com/pls/ask/f?p=4950:8:8127757633768425921::NO::F4950_P8_DISPLAYID,F4950_P8_CRITERIA:4447489221109 > > I have used pipeline functions in DWH enviromnent with success and would > like > To use similar concept in PG too. > > Any help, examples , links and shared experiences would be greately > appreciated. > > Best Regards. > Milen > > > ---------------------------(end of broadcast)--------------------------- > TIP 1: if posting/reading through Usenet, please send an appropriate > subscribe-nomail command to majordomo@postgresql.org so that your > message can get through to the mailing list cleanly > ------=_Part_200522_7040015.1158700078787 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline

Hi Milen,

Pipelined function is a code that acts like a database table.

Inorder to use this functionality in postgres you would need to write the function like this

CREATE OR REPLACE FUNCTION get_test_data (numeric)
RETURNS SETOF RECORD AS
$$
DECLARE
temp_rec RECORD;
BEGIN
FOR temp_rec IN (SELECT ename FROM emp WHERE sal > $1)
LOOP
RETURN NEXT temp_rec;
END LOOP;
RETURN;
END;
$$ LANGUAGE plpgsql;

now inorder to call this function you would write the code as follows

SELECT * FROM get_test_data(1000) AS t1 (emp_name VARCHAR);

Regards

Talha Amjad

On 9/19/06, Milen Kulev <makulev@gmx.net> wrote:

Hello Lister,
I am curios whether I can emulate the Oracle pipelined functions functionality in PG too (using RETURN NEXT ). For more
information and examples about Oracle pipelined functions see:
http://asktom.oracle.com/pls/ask/f?p=4950:8:8127757633768425921::NO::F4950_P8_DISPLAYID,F4950_P8_CRITERIA:4447489221109

I have used  pipeline functions in DWH enviromnent  with success and would like
To use similar concept in PG too.

Any help, examples , links and  shared experiences would be greately appreciated.

Best Regards.
Milen

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