citus/src/backend/distributed/sql/citus--7.1-1--7.1-2.sql

--  citus--7.1-1--7.1-2 

CREATE OR REPLACE FUNCTION pg_catalog.citus_version()
    RETURNS text
    LANGUAGE C STABLE STRICT
    AS 'MODULE_PATHNAME', $$citus_version$$;
COMMENT ON FUNCTION pg_catalog.citus_version()
    IS 'Citus version string';