DPLA bulk data comparison dependent on ingestion version

[ghukill]

As Michigan moved from Ingestion1 --> Ingestion3, looks as though format of bulk data written to S3 has changed (unsurprisingly).

Not acting on for now, but worth noting.

[antmoth]

It looks like this should be something we can address, at the point at which it becomes important enough to sink time into.

I assume this is relevant: https://digitalpubliclibraryofamerica.atlassian.net/wiki/spaces/TECH/pages/5931056/Database+export+files

[antmoth]

Because this relies on the record_id being the same, this may need to be rethought. Also, how valuable it is depends on how valuable other hubs would consider it.