Comments (11)
@ritchie46 looks this comes from rows_encode
added in 26d1b55 - fancy taking a look?
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I missed this one. I can take a look.
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thanks @LeonBamRazor for the report
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Thanks for looking into this @MarcoGorelli .
Any suggestion about a workaround?There is a sort that I set to False, but the error was the same.
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check the last example from https://docs.pola.rs/py-polars/html/reference/dataframe/api/polars.DataFrame.pivot.html and see if you manually define your pivot as a groupby
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Yeah, I don't know the unique column values in advance... maybe I will query this column .unique.
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simpler reproducer:
df = pl.DataFrame({
'a': [1,2,3],
'b': [[1,2], [3,4], [5,6]],
'c': ['x', 'x', 'y'],
'd': [1,2,3]
})
df.pivot(
index=['a', 'b'],
columns='c',
values='d',
)
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Looks like the calls go like this:
polars/crates/polars-core/src/chunked_array/ops/sort/mod.rs
Lines 634 to 641 in f668458
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Is this the only issue that impacted by this change?
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the only one I'm aware of
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Thanks @ritchie46. You are one of the kind!!
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