Pilosa is a distributed DBMS that only supports bitmap indexes.
Vector
Pilosa's data model is a boolean matrix. Each cell in the matrix is a single bit; if the bit is set, then there exists a relationship exists between that row and column. Each column can represent any particular value.
Not Supported
BitMap
Custom API HTTP / REST
Custom
Shared-Everything
https://www.pilosa.com/
https://github.com/pilosa/pilosa
https://www.pilosa.com/docs/
@slothware
Pilosa
US
2017
Commercial, Open Source
Go
Go, Java, Python
Apache v2