presto-array/src/main/java/io/prestosql/array/ByteBigArray.java/ByteBigArray/grow
class ByteBigArray:    private void grow(long length)
    {
        // how many segments are required to get to the length?
        int requiredSegments = segment(length) + 1;

        // grow base array if necessary
        if (array.length < requiredSegments) {
            array = Arrays.copyOf(array, requiredSegments);
        }

        // add new segments
        while (segments < requiredSegments) {
            allocateNewSegment();
        }
    }