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https://issues.apache.org/jira/browse/CARBONDATA-863?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ravindra Pesala resolved CARBONDATA-863.
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Resolution: Fixed
Fix Version/s: 1.1.0-incubating
> Support creation and deletion of dictionary files through RDD during alter
> add and drop
> ---------------------------------------------------------------------------------------
>
> Key: CARBONDATA-863
> URL: https://issues.apache.org/jira/browse/CARBONDATA-863
> Project: CarbonData
> Issue Type: Improvement
> Reporter: Manish Gupta
> Assignee: Manish Gupta
> Priority: Minor
> Fix For: 1.1.0-incubating
>
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
> Currently during alter add and drop columns operation, dictionary files for
> columns are being added and dropped in a single thread due to which the
> operation becomes very slow as the number of columns increases.
> Instead this operation should be done through RDD which will make optimal use
> of executor cores configured and performance will increase by number of cores
> configured.
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