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https://issues.apache.org/jira/browse/BEAM-12379?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17361936#comment-17361936
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Brian Hulette commented on BEAM-12379:
--------------------------------------
[This merge
test|https://github.com/apache/beam/blob/c0b8e6531f6ade6a9c9e50222542e041954ba911/sdks/python/apache_beam/dataframe/frames_test.py#L465]
doesn't rely on erasing the index, but it fails because the proxy says the
index should be named 'lkey', while the expected and actual values have an
unnamed index. This seems to be an upstream issue in merge when called with
empty dataframes.
> Some DataFrame operations yield incorrect proxies
> -------------------------------------------------
>
> Key: BEAM-12379
> URL: https://issues.apache.org/jira/browse/BEAM-12379
> Project: Beam
> Issue Type: Bug
> Components: sdk-py-core
> Reporter: Brian Hulette
> Assignee: Brian Hulette
> Priority: P2
> Labels: dataframe-api
> Time Spent: 5h
> Remaining Estimate: 0h
>
> There are some operations that yield proxies which do not match the data they
> produce at runtime. We should add tests that verify proxies match, and fix
> the operations where they dont.
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