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https://issues.apache.org/jira/browse/IMPALA-13934?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zoltán Borók-Nagy resolved IMPALA-13934.
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Fix Version/s: Impala 5.0.0
Resolution: Fixed
> Do quick pointer comparison in IcebergDeleteBuilder
> ---------------------------------------------------
>
> Key: IMPALA-13934
> URL: https://issues.apache.org/jira/browse/IMPALA-13934
> Project: IMPALA
> Issue Type: Improvement
> Components: Backend
> Reporter: Zoltán Borók-Nagy
> Assignee: Zoltán Borók-Nagy
> Priority: Major
> Labels: impala-iceberg
> Fix For: Impala 5.0.0
>
>
> Since IMPALA-13194 file paths are deduplicated in the serialized position
> delete records.
> Therefore we could do a quick check pointer-based comparison of subsequent
> position delete records instead of the costly string compare.
> If the pointers don't match we still need to check the strings for equality
> because position records coming from different sender can be coalesced into a
> single row batch by the exchange receiver.
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