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https://issues.apache.org/jira/browse/DRILL-2124?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hanifi Gunes resolved DRILL-2124.
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Resolution: Fixed
Fixed by DRILL-1872
> Make MaterializedField#hashCode compute a hashcode by structure and not by
> reference
> ------------------------------------------------------------------------------------
>
> Key: DRILL-2124
> URL: https://issues.apache.org/jira/browse/DRILL-2124
> Project: Apache Drill
> Issue Type: Bug
> Reporter: Hanifi Gunes
> Assignee: Hanifi Gunes
> Priority: Minor
>
> MaterializedField#hashCode relies on Set#hashCode that -is by reference- sums
> up child#hashCode that may collide. We should ensure hashCode yields the same
> value given another field with the same structure.
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