# Functions
MakeMultiIterator creates an iterator that multiplexes engine.SimpleIterators.
NewMemSSTIterator returns a SimpleIterator for a leveldb format sstable in memory.
NewMVCCIncrementalIterator creates an MVCCIncrementalIterator with the specified engine and time range.
NewSSTIterator returns a SimpleIterator for a leveldb formatted sstable on disk.
# Structs
MVCCIncrementalIterator iterates over the diff of the key range [startKey,endKey) and time range (startTime,endTime].