bt_psplit
tp = bt_psplit(t, h, l, r, skip, ilen);
tp = bt_psplit(t, h, l, r, skip, ilen);
static PAGE *bt_psplit
tp = bt_psplit(t, h, l, r, skip, ilen);
tp = bt_psplit(t, h, l, r, skip, ilen);
static PAGE *bt_psplit(BTREE *, PAGE *, PAGE *, PAGE *, indx_t *, size_t);