Wojtek <[EMAIL PROTECTED]> writes: > Why is the "result" incorrect (off by one day)? > When I do the exactly same arithmetic using timestamps created > with to_timestamp, everything is OK ("expected_result").
It is not "exactly the same arithmetic", because to_timestamp delivers a result of type timestamp-with-time-zone, whereas your other values are evidently timestamp without time zone. You did not say what timezone setting you are using, but I think the discrepancy is probably explained by that. regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 9: the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match