CREATE FUNCTION _api.raise_unique(
	_column TEXT DEFAULT ''
)
RETURNS BOOLEAN
LANGUAGE plpgsql VOLATILE
AS $BODY$
BEGIN
	PERFORM _api.raise(
		_msg => 'api_unique_value',
		_detail => _column
	);

	RETURN TRUE;
END
$BODY$;

GRANT EXECUTE ON FUNCTION _api.raise_unique(TEXT)
	TO rest_anon, rest_user;
