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[BUG-REPORT] why the same dataframe and same groupby(vaex.agg.list) operation, one got error and one got correct if i export to hdf5 and loaded it back #2408

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Yihao120 opened this issue Dec 29, 2023 · 0 comments

Yihao120 commented Dec 29, 2023 •

edited

version 4.17.1

error

df.groupby(by=['a', 'b', 'c']).agg({'res1': vaex.agg.list('d')})

correct

df.export_hdf5('tmp.hdf5')
df = vaex.open('tmp.hdf5')
df.groupby(by=['a', 'b', 'c']).agg({'res1': vaex.agg.list('d')})

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