Mikita Karotchykau

[BUG-REPORT] Filtering breaks negative indexing

1

**Description** The following code ``` import pandas as pd import vaex p_df = pd.DataFrame({"A": ["abc"] * 100}) df = vaex.from_pandas(p_df) f_df = df[df["A"] == "abc"] f_df[99] # Works fine. f_df[-1]...

[BUG-REPORT] `AssertionError` when evaluating any expression

6

**Description** I have a 22 GB `.parquet` file. After opening the file via `vaex.open`, `df.info()` outputs the following information (please note that column B is the only column that can...