[GitHub] [arrow-julia] Moelf commented on issue #414: Does `Arrow.write` have an upper limit for the number of columns?

["Moelf (via GitHub)" <gi...@apache.org>]

Moelf commented on issue #414:
URL: https://github.com/apache/arrow-julia/issues/414#issuecomment-1496693459

   seems fine with `pyarrow`
   ```python
   In [1]: import pyarrow.feather, numpy as np, pandas as pd
   
   In [3]: df = pd.DataFrame({f"col_{k}": np.random.rand(100) for k in range(65538)})
   
   In [4]: pyarrow.feather.write_feather(df, "/tmp/wide.feather", compression="uncompressed")
   
   In [6]: pyarrow.feather.read_table("/tmp/wide.feather")["col_65537"]
   Out[6]:
   <pyarrow.lib.ChunkedArray object at 0x7fd528293c90>
   [
     [
       0.3791875035442084,
       0.5547163201551565,
       0.13564446518017992,
       0.4183265184379561,
       0.8100731859852923,
       ...
       0.6820512183941593,
       0.6142216465909046,
       0.7692441575177542,
       0.07715418533522123,
       0.38896656434696375
     ]
   ]
   ```


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