remove read_parquet from descriptive stats
Related to https://github.com/huggingface/datasets-server/issues/2047
I am not sure if this will help, but I saw that many jobs got stuck in the CREATE command, `duckdb-index` worker also performs this operation, but it looks like it doesnt stuck for so long.
I want to try loading directly to parquet files instead of using `read_parquet` function.
![Screenshot from 2023-12-06 12-41-24](https://github.com/huggingface/datasets-server/assets/5564745/06c0d5b7-78a6-453a-a120-185f68038ca4)

remove read_parquet from descriptive stats: Related to https://github.com/huggingface/datasets-server/issues/2047
I am not sure if this will help, but I saw that many jobs got stuck in the CREATE command, `duckdb-index` worker also performs this operation, but it looks like it doesnt stuck for so long.
I want to try loading directly to parquet files instead of using `read_parquet` function.
![Screenshot from 2023-12-06 12-41-24](https://github.com/huggingface/datasets-server/assets/5564745/06c0d5b7-78a6-453a-a120-185f68038ca4)
