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https://issues.apache.org/jira/browse/SPARK-9793?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14696115#comment-14696115
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Joseph K. Bradley commented on SPARK-9793:
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[~yanboliang] This is not an urgent issue, but we should probably fix eq and
hash in the same PR (for each language / type). Could you please combine this
with [SPARK-9940] and likewise merge your PRs for them? Thank you!
> PySpark DenseVector, SparseVector should override __eq__
> --------------------------------------------------------
>
> Key: SPARK-9793
> URL: https://issues.apache.org/jira/browse/SPARK-9793
> Project: Spark
> Issue Type: Bug
> Components: ML, PySpark
> Affects Versions: 1.5.0
> Reporter: Joseph K. Bradley
> Priority: Critical
>
> See [SPARK-9750].
> PySpark DenseVector and SparseVector do not override the equality operator
> properly. They should use semantics, not representation, for comparison.
> (This is what Scala currently does.)
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