SAM extraction module of ncbi-vdb library

 The (US) National Center for Biotechnology Information (NCBI)'s
 Virtual/Vertical Database (VDB) is a highly compressed column-oriented
 data warehousing technology developed initially to address the needs
 of the Sequence Read Archive (SRA). It is unique in that it builds
 databases from smaller parts that can function independently as
 _documents_, supports effective and efficient compression, supports
 encryption while remaining encrypted on disk, transparent distribution
 and remote access.
 .
 This library is part of the ncbi-vdb package and provides an interface
 for extracting Sequence/Alignment Map (SAM) files.