Is your feature request related to a problem or challenge? Please describe what you are trying to do.

Parquet row groups are meant to contain large numbers of rows. This helps amortize statistics, metadata, and IO overheads, and make the best use of dictionary encoding.

Currently every call to ArrowWriter::write creates a new row group, this is unfortunate

Describe the solution you'd like

ArrowWriter should only close a row group once it exceeds the configured WriterProperties::max_row_group_size