[ 
https://issues.apache.org/jira/browse/BEAM-10814?focusedWorklogId=486587&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-486587
 ]

ASF GitHub Bot logged work on BEAM-10814:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 20/Sep/20 00:12
            Start Date: 20/Sep/20 00:12
    Worklog Time Spent: 10m 
      Work Description: TheNeuralBit opened a new pull request #12882:
URL: https://github.com/apache/beam/pull/12882


   This PR adds the ability for `DataframeTransform` to produce element-wise 
PCollections, via a new `UnbatchPandas` transform. The original behavior is 
still possible, with a `yield_dataframes=True` option.
   
   In order to support this, the PR also adds more robust support for 
converting between native Python types and pandas/numpy dtypes. Note that 
pandas' catch-all `np.object` type is mapped to `typing.Any`. This PR also 
closes BEAM-10570 - it adds support for RowCoder to encode fields with 
arbitrary Python types using FastPrimitivesCoder.
   
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Issue Time Tracking
-------------------

            Worklog Id:     (was: 486587)
    Remaining Estimate: 0h
            Time Spent: 10m

> DataframeTransform: when input is element-wise produce element-wise output
> --------------------------------------------------------------------------
>
>                 Key: BEAM-10814
>                 URL: https://issues.apache.org/jira/browse/BEAM-10814
>             Project: Beam
>          Issue Type: Improvement
>          Components: sdk-py-core
>            Reporter: Brian Hulette
>            Assignee: Brian Hulette
>            Priority: P2
>             Fix For: 2.25.0
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> If input is DataFrame yield DataFrames, if it's elements yield elements.
> We should also provide a way to override the default



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