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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2021/08/31 09:38:14 UTC
[GitHub] [arrow] EdisonZiXing opened a new issue #11034: Filter the dataframe with gandiva
EdisonZiXing opened a new issue #11034:
URL: https://github.com/apache/arrow/issues/11034
Here is another question I wanna consult about:
I'm trying to filter the dataframe with gandiva,and I uesd the Expression Tree with Python
But I can only get the index for the filtered data.How can I get the whole row?
Thanks a lot!!!
Looking forword to your reply,master!**
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[GitHub] [arrow] emkornfield commented on issue #11034: Filter the dataframe with gandiva
Posted by GitBox <gi...@apache.org>.
emkornfield commented on issue #11034:
URL: https://github.com/apache/arrow/issues/11034#issuecomment-962291420
I'm not sure. You might try dev@ where there are more people familiar with that system.
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[GitHub] [arrow] EdisonZiXing commented on issue #11034: Filter the dataframe with gandiva
Posted by GitBox <gi...@apache.org>.
EdisonZiXing commented on issue #11034:
URL: https://github.com/apache/arrow/issues/11034#issuecomment-917794467
> If you have indices from gandiva you could use [pyarrow.take](https://arrow.apache.org/docs/python/generated/pyarrow.compute.take.html) to collapse the filtered data.
Thx for the reply bro! pyarrow.take() to get the data is a little bit slow for me.So I'm trying to find another method.I'm reading the source recently and found that gandiva can only get the indices back first, am I right?
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[GitHub] [arrow] emkornfield commented on issue #11034: Filter the dataframe with gandiva
Posted by GitBox <gi...@apache.org>.
emkornfield commented on issue #11034:
URL: https://github.com/apache/arrow/issues/11034#issuecomment-917716764
If you have indices from gandiva you could use [pyarrow.take](https://arrow.apache.org/docs/python/generated/pyarrow.compute.take.html) to collapse the filtered data.
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[GitHub] [arrow] emkornfield closed issue #11034: Filter the dataframe with gandiva
Posted by GitBox <gi...@apache.org>.
emkornfield closed issue #11034:
URL: https://github.com/apache/arrow/issues/11034
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