> From: Glyn Astill <glynastill@xxxxxxxxxxx> > To: "ascot.moss@xxxxxxxxx" <ascot.moss@xxxxxxxxx>; PostgreSQL general <pgsql-general@xxxxxxxxxxxxxx> > Cc: > Sent: Thursday, 8 August 2013, 15:20 > Subject: Re: How to find transaction ID > > > >> From: "ascot.moss@xxxxxxxxx" <ascot.moss@xxxxxxxxx> >> To: PostgreSQL general <pgsql-general@xxxxxxxxxxxxxx> >> Cc: ascot.moss@xxxxxxxxx >> Sent: Thursday, 8 August 2013, 14:52 >> Subject: How to find transaction ID >> >> Hi, >> >> I am trying some restore tools, can you advise how to find the latest >> transaction ID in PostgreSQL and the transaction ID at a particular >> "Point-In-Time"? >> > > Hmm, it's not clear entirely what you want. Afaik "select > txid_current()" should get you the current transaction id. The column xmin > for a row from any table will get you the inserting transaction id, and xmax > will get you the deleting (or attempted delete) transaction id. > > See http://www.postgresql.org/docs/9.0/static/functions-info.html > I guess I shouldn't have said that about xmin and xmax; you can't rely on those columns in various circumstances i.e. after a vacuum. -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
