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https://issues.apache.org/jira/browse/APEXMALHAR-2271?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16194743#comment-16194743
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ASF GitHub Bot commented on APEXMALHAR-2271:
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vrozov closed pull request #495: APEXMALHAR-2271 Implement a multimap with time
extract from value
URL: https://github.com/apache/apex-malhar/pull/495
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> Special SpillableSetMultimap<K, Window.SessionWindow<K>> handling in
> ManagedState in SpillableSessionWindowedStorage
> --------------------------------------------------------------------------------------------------------------------
>
> Key: APEXMALHAR-2271
> URL: https://issues.apache.org/jira/browse/APEXMALHAR-2271
> Project: Apache Apex Malhar
> Issue Type: Improvement
> Reporter: David Yan
> Assignee: Siyuan Hua
>
> The problem with this data structure is that the key is not time based.
> This poses a problem because we will have a problem purging.
> One idea is to have `put` write the key and the window set to the timebucket
> that the latest window in that set belongs to, which means possible
> duplication of the key and the window set, and make `get` do a for loop on
> all time buckets to find the key. That way, purging based on the time bucket
> can still be done.
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