Allow "<expr> PRECEDING" to be used to specify the end of a window frame.
FossilOrigin-Name: 7b709a989c188dbcf429989a0785294b36c8a7e89b5de8cefc25decf1f5b7f5a
D
dan committed
31f5639fb71840d83eb7bb18691471f198632a48
Parent: 99652dd