Limit of Lucene

[Michael Siu]

What is the limit of Lucene:  # of docs per index?

 

If RangeFilter.Bits(), for example, it initializes a bitset to the size of
maxDoc from the indexReader.  I wonder what happen if the # of docs is huge,
say MaxInt (4G in 32bit or 2^63 in 64 bit)?