Subfield columns

[edsu]

By default marctable outputs a table with 215 columns, one for each MARC field in the Avram schema. So for example the 245 subfield gets serialized to the F245 column. You can override this by using the --rule option to specify specific field and field/subfield combinations if you want.

But I wonder if for some use cases you would actually want to have all Field/Subfield combinations? So like F245A, F245B, F245C, etc. It would make the table quite wide (not sure how wide yet). But perhaps the size wouldn't be greatly impacted. Maybe if not the default it could be an option like:

$ marctable parquet --subfield-columns data.marc data.parquet