Turn /parquet-and-dataset-info into a config-level job
We should:
- compute the values for every config independently: `config--parquet-and-dataset-info`
- no need to compute things at the dataset level

See #735
Turn /parquet-and-dataset-info into a config-level job: We should:
- compute the values for every config independently: `config--parquet-and-dataset-info`
- no need to compute things at the dataset level

See #735