thats exactly the same i'm looking for:
http://wiki.postgresql.org/wiki/Todo
http://archives.postgresql.org/pgsql-patches/2005-07/msg00458.php
(todo list for plpgsql)
*Server-Side Languages
*PL/pgSQL
*
*[D] Allow listing of record column names, and access to record columns
*via variables, e.g. columns := r.(*), tval2 := r.(colname)
*
*Re: PL/PGSQL: Dynamic Record Introspection
is that is possible in any pl* language?
Daniel Schuchardt schrieb:
hy group,
i currently look for a solution to access a resultset in a db-stored
function by number. in plpgsql thats not possible.
so i checked out plpython. so far so good, thats working:
CREATE OR REPLACE FUNCTION dokv_dorecnokeywords(sqlstatement VARCHAR)
RETURNS VOID AS
$$
rv = plpy.execute(sqlstatement, 1)
|||||->"SELECT * FROM art WHERE ak_nr='TEST'"
s = 'ak_bez' |||| fieldname is static here, should be by number
plpy.notice(s+'='+rv[0][s])
return
$$ LANGUAGE plpythonu;
now i need a solution to get the number of fields as well as the
fieldnames of that resultset and run through all fields (by number or by
name). (i need the fieldname too)
--
Daniel Schuchardt
/Softwareentwicklung/
/http://www.prodat-sql.de/
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