Heikki Linnakangas <[EMAIL PROTECTED]> writes: > I wonder if calling RelationGetNumberOfBlocks on every seq scan becomes > a performance issue for tiny tables with for example just 1 page. It > performs an lseek, which isn't free.
We do that anyway; but certainly Simon's patch ought not be injecting an additional one. 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