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https://issues.apache.org/jira/browse/FLINK-13054?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ji Liu closed FLINK-13054.
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Resolution: Invalid
> [Java] Support compact fixed-width vectors
> ------------------------------------------
>
> Key: FLINK-13054
> URL: https://issues.apache.org/jira/browse/FLINK-13054
> Project: Flink
> Issue Type: New Feature
> Reporter: Ji Liu
> Assignee: Ji Liu
> Priority: Minor
>
> In shuffle stage of some applications, FixedWitdhVectors may have very little
> non-null data.
> In this case, directly serialize vectors is not a good choice, generally we
> can compact the vector make it only holding non-null value and create a
> BitVector to trace the indices for non-null values so that it could be
> deserialized properly.
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