On 29/07/15 21:13, CS DBA wrote: > The documentation for pg_stat_activity lists this column: > > backend_xmin xid The current backend's xmin horizon. > > Can someone point me to a better understanding on "xmin horizon"? https://momjian.us/main/writings/pgsql/mvcc.pdf you can find this talk also on youtube. It's worth watching. Torsten -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
