Function construct_empty_array

src/backend/utils/adt/arrayfuncs.c:3539–3550

* construct_empty_array --- make a zero-dimensional array of given type */

 * construct_empty_array	--- make a zero-dimensional array of given type
 */
ArrayType *
construct_empty_array(Oid elmtype)
{
	ArrayType  *result;

	result = (ArrayType *) palloc0(sizeof(ArrayType));
	SET_VARSIZE(result, sizeof(ArrayType));
	result->ndim = 0;
	result->dataoffset = 0;
	result->elemtype = elmtype;
	return result;
}

/*
 * construct_empty_expanded_array: make an empty expanded array