pytorch / torcharrow

High performance model preprocessing library on PyTorch
https://pytorch.org/torcharrow/beta/index.html
BSD 3-Clause "New" or "Revised" License
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torcharrow.dataframe.where实测速度慢于pandas.DataFrame.where #516

Open yonger001 opened 1 year ago

yonger001 commented 1 year ago

问题一:同张表同约束下,ta.where速度较pd.where慢很多; 问题二:调用ta.dataframe相关操作(如:where、sort等)会出现Userwarning,例如:append for type StringColumnCpu is supported only with prototype implementation, which may result in degenerated performance. 上面中的prototye implementation具体指?

thank you!