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https://issues.apache.org/jira/browse/FLINK-2237?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15140788#comment-15140788
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ASF GitHub Bot commented on FLINK-2237:
---------------------------------------
Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/1517#discussion_r52459151
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/operators/resettable/AbstractBlockResettableIterator.java
---
@@ -83,6 +83,7 @@ protected
AbstractBlockResettableIterator(TypeSerializer<T> serializer, MemoryMa
this.collectingView = new
SimpleCollectingOutputView(this.fullSegments,
new
ListMemorySegmentSource(this.emptySegments), memoryManager.getPageSize());
this.readView = new RandomAccessInputView(this.fullSegments,
memoryManager.getPageSize());
+ this.readView.setReadPosition(0);
--- End diff --
Not needed if additional constructor is added to `RandomAccessInputView`
> Add hash-based Aggregation
> --------------------------
>
> Key: FLINK-2237
> URL: https://issues.apache.org/jira/browse/FLINK-2237
> Project: Flink
> Issue Type: New Feature
> Reporter: Rafiullah Momand
> Assignee: Gabor Gevay
> Priority: Minor
>
> Aggregation functions at the moment are implemented in a sort-based way.
> How can we implement hash based Aggregation for Flink?
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