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https://issues.apache.org/jira/browse/BEAM-12541?focusedWorklogId=616294&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-616294
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ASF GitHub Bot logged work on BEAM-12541:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 29/Jun/21 13:41
Start Date: 29/Jun/21 13:41
Worklog Time Spent: 10m
Work Description: rohdesamuel commented on pull request #15086:
URL: https://github.com/apache/beam/pull/15086#issuecomment-869903715
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Issue Time Tracking
-------------------
Worklog Id: (was: 616294)
Time Spent: 2.5h (was: 2h 20m)
> fillna(value=DataFrame/Series) does not correctly fill values
> -------------------------------------------------------------
>
> Key: BEAM-12541
> URL: https://issues.apache.org/jira/browse/BEAM-12541
> Project: Beam
> Issue Type: Bug
> Components: dsl-dataframe
> Reporter: Brian Hulette
> Assignee: Brian Hulette
> Priority: P2
> Fix For: 2.32.0
>
> Time Spent: 2.5h
> Remaining Estimate: 0h
>
> A new doctest was added in 1.3.0 that verifies fillna with a DataFrame value:
> {code}
> df = pd.DataFrame([[np.nan, 2, np.nan, 0],
> [3, 4, np.nan, 1],
> [np.nan, np.nan, np.nan, 5],
> [np.nan, 3, np.nan, 4]],
> columns=list("ABCD"))
> df2 = pd.DataFrame(np.zeros((4, 4)), columns=list("ABCE"))
> df.fillna(df2)
> A B C D
> 0 0.0 2.0 0.0 0
> 1 3.0 4.0 0.0 1
> 2 0.0 0.0 0.0 5
> 3 0.0 3.0 0.0 4
> {code}
> Unfortunately, we fail this test. The root cause is that we don't require
> Index partitioning when fillna is called with a DataFrame/Series value.
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