On 5/30/07, Trigve Siver <trigves@yahoo.com> wrote:
> Can you point me to some sources
> or give me some examples, please?
CREATE OR REPLACE FUNCTION ROWNUM() RETURNS BIGINT AS
$$BEGIN RETURN NEXTVAL('ROWNUM_SEQ');EXCEPTION WHEN OTHERS THEN CREATE TEMP SEQUENCE ROWNUM_SEQ; RETURN
NEXTVAL('ROWNUM_SEQ');END;
$$
LANGUAGE 'PLPGSQL';
SELECT ROWNUM(), S.X
FROM GENERATE_SERIES(5,1,-1) S(X);
Remember to reset the sequence value if you use this more than once in
the same session.
