Sorry I forgot to mention: last insert could have multiple rows inserted and I would like to access all of them, not necessarily only the last one. That's my problem. Or I misunderstand the "last entry". Thank you.
CREATE TRIGGER del1 AFTER INSERT ON table1 FOR EACH ROW EXECUTE PROCEDURE taskdel;
taskdel: CREATE OR REPLACE FUNCTION taskdel() RETURNS trigger AS $BODY$begin update table2 SET manualdueat = null, FROM table1, where table1.idtask = table2.idtask; return new; END$BODY$ LANGUAGE plpgsql VOLATILE COST 100; ALTER FUNCTION taskdel() OWNER TO user1;
my idea was to have the info from column "manualdueat" deleted after the table1 has been updated. the problem i face is that all columns from table2 will be deleted, not only my last entry where the insert has been done (I was thinking that table1.idtask = table2.idtask will work, but isn't); my question to you would be how to access only the last insert id in table1 and make this trigger working. or do you have another walk arround?
How about querying and order by primary key descending and get the first one?
