On 2017-08-29 20:19:52 +0900, Michael Paquier wrote: > On Tue, Aug 29, 2017 at 6:06 PM, Gersner <gersner@xxxxxxxxx> wrote: > > I see, interesting. > > Please do not top-post. This is not the recommended way of dealing > with threads on this mailing list. > > > We have lots of unlogged tables, upon a crash we want to create a > > feedback/alert that data disappeared. > > > > Not very familiar with the internal structure, but is it possible to > > identify if the current table is the INIT_FORKNUM? > > Using pg_relation_filepath, you can know the path to a relation file > on disk. So a simple idea would be to use pg_read_binary_file with the > path of the file and the path of the init fork, which is suffixed with > "_init", and then a comparison between both. If the data read is the > same, the relation has been untouched. Huh, but that's not particularly meaningful, is it? That'll just as well be the case for a freshly created relation, no? - Andres -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
