postgresql-14-postgis-3-scripts 3.1.4+dfsg-3 (amd64 binary) in ubuntu jammy

 PostGIS adds support for geographic objects to the PostgreSQL
 object-relational database. In effect, PostGIS "spatially enables"
 the PostgreSQL server, allowing it to be used as a backend spatial
 database for geographic information systems (GIS), much like ESRI's
 SDE or Oracle's Spatial extension. PostGIS follows the OpenGIS
 "Simple Features Specification for SQL".
 .
 This package contains the SQL scripts for installing PostGIS in a PostgreSQL
 14 database, and for upgrading from earlier PostGIS versions.