postgresql-9.6-plv8 1:1.4.8.ds-3 (amd64 binary) in ubuntu zesty

 V8 is a high performance JavaScript engine written in C++. It is used
 in the document-oriented data store MongoDB.
 .
 PostgreSQL is an open source SQL database server.
 .
 This package provides a procedural language interface to JavaScript from
 PostgreSQL. Procedural languages are used to write functions
 which can be called in database queries.