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Posted to issues@spark.apache.org by "Cheng Hao (JIRA)" <ji...@apache.org> on 2014/11/12 16:21:35 UTC

[jira] [Updated] (SPARK-3056) Sort-based Aggregation

     [ https://issues.apache.org/jira/browse/SPARK-3056?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Cheng Hao updated SPARK-3056:
-----------------------------
    Issue Type: Sub-task  (was: Improvement)
        Parent: SPARK-4366

> Sort-based Aggregation
> ----------------------
>
>                 Key: SPARK-3056
>                 URL: https://issues.apache.org/jira/browse/SPARK-3056
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>            Reporter: Cheng Hao
>
> Currently, SparkSQL only support the hash-based aggregation, which may cause OOM if too many identical keys in the input tuples.



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