Create a new tool that summarizes the size of a file by column

I want a tool that summarizes how the space inside an ORC file is used. In particular, for each column, the indexes, the file footer, and the stripe footers.

The output on the orc_split_elim_new.orc is:

Percent Bytes/Row Name
46.79 0.04 subtype
17.49 0.02 _file_footer
16.57 0.02 _index
7.01 0.01 decimal1
5.05 0.00 _stripe_footer
2.84 0.00 string1
2.59 0.00 ts
1.67 0.00 userid