-- It already exists in the latest minor versions of PostgreSQL 1C.
CREATE OR REPLACE FUNCTION mvarchar_transform(internal)
RETURNS internal
AS 'MODULE_PATHNAME'
LANGUAGE C IMMUTABLE RETURNS NULL ON NULL INPUT
PARALLEL SAFE;

-- It already exists in the latest minor versions of PostgreSQL 1C.
CREATE OR REPLACE FUNCTION mvarchar_support(internal)
RETURNS internal
AS 'MODULE_PATHNAME'
LANGUAGE C IMMUTABLE RETURNS NULL ON NULL INPUT
PARALLEL SAFE;

ALTER FUNCTION mvarchar(mvarchar, integer, boolean)
SUPPORT mvarchar_support;
