On Mon, Feb 20, 2017 at 04:22:51PM -0500, Tom Lane wrote: > One other thought here --- if you do want to go with the "no other > updates" semantics, it still seems like it should be sufficient to > compare xmins. Comparing the xmax values would add nothing to that, > except that it would reject if another update had been attempted and > then failed, which seems undesirable. Right, we have been doing that (xmin only) in GNUmed for years in order to detect concurrent updates to our medical record. Works like a charm. Karsten -- GPG key ID E4071346 @ eu.pool.sks-keyservers.net E167 67FD A291 2BEA 73BD 4537 78B9 A9F9 E407 1346 -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
