[
https://issues.apache.org/jira/browse/SPARK-9422?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Yin Huai resolved SPARK-9422.
-----------------------------
Resolution: Fixed
Fix Version/s: 1.5.0
Issue resolved by pull request 7737
[https://github.com/apache/spark/pull/7737]
> Remove the placeholder attributes used in the aggregation buffers
> -----------------------------------------------------------------
>
> Key: SPARK-9422
> URL: https://issues.apache.org/jira/browse/SPARK-9422
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Reporter: Yin Huai
> Assignee: Yin Huai
> Fix For: 1.5.0
>
>
> Originally, to merge two aggregation buffers, we create a mutable buffer with
> extra placeholder attributes to represent grouping expressions (because the
> input aggregation buffer has grouping keys). This was done to make the first
> implementation easy. We can remove it now, which can also help us to
> implement the hash aggregate operator using unsafe row as the buffer.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
