4.0.0 extendedset extendedset Implementation of CONCISE (COmpressed 'N" Composable Integer SEt) bit map compression algorithm by Alessandro Colantonio with some enhanced features - http://ricerca.mat.uniroma3.it/users/colanton/docs/concise.pdf io.druid druid 0.9.3-SNAPSHOT com.google.guava guava 16.0.1 junit junit 4.8.1 test