ksofeikov

@kravets-levko tbh, I'm not sure how to create a reproducible example here, since the cursor just bulk-reads the table from the store. Since this happens during the result read-out stage,...

I suspect one way to create an example is to craft two arrow files with one column each and then one will have no null values in a column, and...

Yeah, seems like the null assumption was correct. Here is a minimally working example ``` import pandas as pd import pyarrow as pa import pyarrow.parquet as pq df1 = pd.DataFrame({"a":...

Also, the root cause of this is that strings are backed by python `str`, which go as `object` dtype in pandas. Backing this by either nullable pandas `string` or `string[pyarrow]`...

Just checked `use_cloud_fetch=False` - it does solve the problem. I also made sure to remove my patches allowing `permissive` schema merges. Works without cloud fetch, and starts failing again if...

Changing env from `13.3 LTS` to `14.3 LTS` and `15.4 LTS` seemingly does nothing to help the problem - the code still fails, if cloud fetch is enabled. Is there...