/rows: raise an error if a dataset has too big row groups
It can happen if a dataset was converted to parquet before the recent row group size optimization, e.g. garythung/trashnet

Currently it makes the worker crash.

We could also refresh the parquet export of the dataset when this happens
/rows: raise an error if a dataset has too big row groups: It can happen if a dataset was converted to parquet before the recent row group size optimization, e.g. garythung/trashnet

Currently it makes the worker crash.

We could also refresh the parquet export of the dataset when this happens