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? Why and when there is a choice between int8 and float8 representation? -- Reg me Please ---------------------------(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