[jira] [Assigned] (SPARK-38864) Melt function for Dataset API
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https://issues.apache.org/jira/browse/SPARK-38864?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Wenchen Fan reassigned SPARK-38864:
---
Assignee: Enrico Minack
> Melt function for Dataset API
> -
>
> Key: SPARK-38864
> URL: https://issues.apache.org/jira/browse/SPARK-38864
> Project: Spark
> Issue Type: New Feature
> Components: SQL
>Affects Versions: 3.4.0
>Reporter: Enrico Minack
>Assignee: Enrico Minack
>Priority: Major
>
> As pointed out in SPARK-30273 and SPARK-37799, the Dataset API provides the
> {{pivot}} method but not its reverse operation {{melt}}. It is only provided
> as part of the PySpark Pandas API, implemented in Python. However, {{melt}}
> is not available via the PySpark DataFrame API, nor through Spark Scala
> Dataset API.
> As mentioned in
> [#26912|https://github.com/apache/spark/pull/26912#pullrequestreview-332975715],
> it should be implemented in Scala and invoked from PySpark.
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[jira] [Assigned] (SPARK-38864) Melt function for Dataset API
[
https://issues.apache.org/jira/browse/SPARK-38864?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Apache Spark reassigned SPARK-38864:
Assignee: Apache Spark
> Melt function for Dataset API
> -
>
> Key: SPARK-38864
> URL: https://issues.apache.org/jira/browse/SPARK-38864
> Project: Spark
> Issue Type: New Feature
> Components: SQL
>Affects Versions: 3.4.0
>Reporter: Enrico Minack
>Assignee: Apache Spark
>Priority: Major
>
> As pointed out in SPARK-30273 and SPARK-37799, the Dataset API provides the
> {{pivot}} method but not its reverse operation {{melt}}. It is only provided
> as part of the PySpark Pandas API, implemented in Python. However, {{melt}}
> is not available via the PySpark DataFrame API, nor through Spark Scala
> Dataset API.
> As mentioned in
> [#26912|https://github.com/apache/spark/pull/26912#pullrequestreview-332975715],
> it should be implemented in Scala and re-uses from PySpark.
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[jira] [Assigned] (SPARK-38864) Melt function for Dataset API
[
https://issues.apache.org/jira/browse/SPARK-38864?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Apache Spark reassigned SPARK-38864:
Assignee: (was: Apache Spark)
> Melt function for Dataset API
> -
>
> Key: SPARK-38864
> URL: https://issues.apache.org/jira/browse/SPARK-38864
> Project: Spark
> Issue Type: New Feature
> Components: SQL
>Affects Versions: 3.4.0
>Reporter: Enrico Minack
>Priority: Major
>
> As pointed out in SPARK-30273 and SPARK-37799, the Dataset API provides the
> {{pivot}} method but not its reverse operation {{melt}}. It is only provided
> as part of the PySpark Pandas API, implemented in Python. However, {{melt}}
> is not available via the PySpark DataFrame API, nor through Spark Scala
> Dataset API.
> As mentioned in
> [#26912|https://github.com/apache/spark/pull/26912#pullrequestreview-332975715],
> it should be implemented in Scala and re-uses from PySpark.
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