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https://issues.apache.org/jira/browse/ASTERIXDB-2831?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Glenn Justo Galvizo closed ASTERIXDB-2831.
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Resolution: Fixed
> Use a More Selective Approach to Array Index UPSERTs
> ----------------------------------------------------
>
> Key: ASTERIXDB-2831
> URL: https://issues.apache.org/jira/browse/ASTERIXDB-2831
> Project: Apache AsterixDB
> Issue Type: Improvement
> Reporter: Glenn Justo Galvizo
> Priority: Major
>
> Array indexes currently perform UPSERTs by unconditionally deleting the old
> array contents and inserting the new array contents. A "merge-join" inspired
> approach could be used here instead, where we iterate through the already
> sorted old and new arrays, compare the elements at each step, and selectively
> perform an insert / delete.
>
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