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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2021/01/11 08:09:09 UTC

[GitHub] [arrow] svjack commented on issue #9146: How to use cast time-string to timestamp[ms] in expression in filters of _ParquetDatasetV2 in pyarrow

svjack commented on issue #9146:
URL: https://github.com/apache/arrow/issues/9146#issuecomment-757690864


   I find that the above function i required above seemed implemented by gandiva module  in the pyarrow.
   I have search some materials about it, it seems like gandiva mainly interface are java and C++, and
   i only find one python example, which register the gandiva function as a dataframe_accessor for pandas dataframe. (speed up the query execute)
   Can you introduce me some gandiva usage in python and pyarrow,
   Thanks.


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