On Thu, Oct 19, 2006 at 10:36:29AM -0400, AgentM wrote: > Only if each message is contained in its own transaction since now() > is effectively a constant throughout a transaction. In this case, I > would choose a surrogate key since it is likely that the table will > be referenced. See timeofday(). -- Jim Nasby jim@xxxxxxxxx EnterpriseDB http://enterprisedb.com 512.569.9461 (cell)