9abcc587_l__BTreeWriter_Class_Reference__1
[2] whether to position on least upper bound or greatest lower bound [1] 
leastUpper
k e y
d u p S e e k
l e a s t U p p e r
p a g e S t a c k
s t a r t P a g e I d
i n i t i a l L o c k M o d e
r e a d M o d e
Fennel: BTreeWriter Class Reference
1