CREATE OR REPLACE FUNCTION gzip(uncompressed bytea, compression_level integer default -1)
    RETURNS bytea
    AS 'MODULE_PATHNAME', 'pg_gzip'
    LANGUAGE 'c'
    IMMUTABLE STRICT
    PARALLEL SAFE;

CREATE OR REPLACE FUNCTION gzip(uncompressed text, compression_level integer default -1)
    RETURNS bytea
    AS 'MODULE_PATHNAME', 'pg_gzip'
    LANGUAGE 'c'
    IMMUTABLE STRICT
    PARALLEL SAFE;

CREATE OR REPLACE FUNCTION gunzip(compressed bytea)
    RETURNS bytea
    AS 'MODULE_PATHNAME', 'pg_gunzip'
    LANGUAGE 'c'
    IMMUTABLE STRICT
    PARALLEL SAFE;