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https://issues.apache.org/jira/browse/PHOENIX-6458?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17370410#comment-17370410
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ASF GitHub Bot commented on PHOENIX-6458:
-----------------------------------------

kadirozde opened a new pull request #1256:
URL: https://github.com/apache/phoenix/pull/1256


   


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> Using global indexes for queries with uncovered columns
> -------------------------------------------------------
>
>                 Key: PHOENIX-6458
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-6458
>             Project: Phoenix
>          Issue Type: Improvement
>    Affects Versions: 5.1.0
>            Reporter: Kadir Ozdemir
>            Priority: Major
>         Attachments: PHOENIX-6458.master.001.patch
>
>
> Phoenix client does not use a global index for the queries with the columns 
> that are not covered by the global index. However, there are many cases where 
> using the global index to map secondary keys to primary keys and then 
> retrieving the corresponding rows from the data table results in faster 
> queries. It is expected that such performance improvement will happen when 
> the index row key prefix length is greater than the data row key prefix 
> length for a given query. 



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