Filtering dask dataframe produces empty result with known existing results

Hello. Really simple use-case. I use a list of ID to filter a big dataset. As can be seen on the image, a simple comparison with an existing record when in dask domain produces an empty result. Upon transforming to a pandas dataframe, it works as expected. I bet is something simple, but I can’t see it right now. Thank you very much.

Hi @afac,

Did you inspect what Dask gives you when calling data['aux_id'] == 35...? I’m not sure how well works boolean transformation with lazy dataframes.