"Joshua D. Drake" <jd@xxxxxxxxxxxxxxxxx> writes: > If we are sure that this issue is apparent actual row insertion it > should be easy to duplicate. I think you missed my point entirely: I believe it's specific to Clodoaldo's installation. Certainly I didn't have any luck reproducing a huge 8.2-to-8.3 slowdown here. regards, tom lane ---------------------------(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