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https://issues.apache.org/jira/browse/SPARK-1627?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sean Owen resolved SPARK-1627.
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Resolution: Won't Fix
Fix Version/s: (was: 1.2.0)
The discussion in https://github.com/apache/spark/pull/867 suggests this was
subsumed by SPARK-2873.
> Support external aggregation in Spark SQL
> -----------------------------------------
>
> Key: SPARK-1627
> URL: https://issues.apache.org/jira/browse/SPARK-1627
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 1.0.0
> Reporter: Chen Chao
>
> Spark SQL Aggregator does not support external sorting now which is extremely
> important when data is much larger than memory.
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