Reg Me Please wrote: > Il Thursday 08 November 2007 16:18:58 Tom Lane ha scritto: > > It's either an int8 representing microseconds away from 2000-01-01 > > 00:00:00 UTC, or a float8 representing seconds away from the same > > origin. > > Does this mean that negative numbers are for timestamps before y2k? Yes. > Why and when there is a choice between int8 and float8 representation? At compilation time, by the --enable-integer-datetimes flag to configure. You can find out whether the server you're currently connected to uses integer datetimes with SHOW integer_datetimes. -- Alvaro Herrera http://www.amazon.com/gp/registry/DXLWNGRJD34J "The only difference is that Saddam would kill you on private, where the Americans will kill you in public" (Mohammad Saleh, 39, a building contractor) ---------------------------(end of broadcast)--------------------------- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match
