presto-main/src/main/java/io/prestosql/operator/GroupByIdBlock.java/GroupByIdBlock/bytesEqual
class GroupByIdBlock:    @Override
    public boolean bytesEqual(int position, int offset, Slice otherSlice, int otherOffset, int length)
    {
        return block.bytesEqual(position, offset, otherSlice, otherOffset, length);
    }