Dear Everybody!
In MS we had a "persistent lock" structure and method. This over transactions because based on real records in a real table with pri key (tablename + id). For garbaging we had a special session info. In MS the session id is smallint, so it can repeats after server restarts, but my coll. found a "session creation timestamp". This is a key which unique. With this we can check for died sessions and we can clean their records. We want create same mechanism. I know there are adv. locks in PG, but I want to use session id. This could be: pg_backend_pid() May pid repeats. Where I can get timestamp or some other unique data with I can create a combined primary key? Thanks for your help! dd
