NAME CREATE_EXTENSION - install an extension SYNOPSIS CREATE EXTENSION [ IF NOT EXISTS ] extension_name [ WITH ... schema_name ] [ VERSION version ] [ CASCADE ] DESCRIPTION CREATE …PostgreSQL extension. SEE ALSO CREATE EXTENSION ( CREATE_EXTENSION (7)), ALTER EXTENSION ( ALTER_EXTENSIONPostgreSQL extension. SEE ALSO CREATE EXTENSION ( CREATE_EXTENSION (7)), DROP EXTENSION ( DROP_EXTENSIONdump files, it is interpreted as CREATE EXTENSION . That will work if the language ... this to install the extension: CREATE EXTENSION plsample; COMPATIBILITY CREATE LANGUAGE is a …language: CREATE TYPE hstore ...; CREATE EXTENSION plpython3u; Then create the necessary functions: CREATE FUNCTION hstorecurrent database by means of CREATE EXTENSION . plpgsql is installed by default, but other languages