[jira] [Commented] (PHOENIX-1178) Collect and use histogram information during query optimization

["dilshan kanchana (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/PHOENIX-1178?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15181744#comment-15181744 ] 

dilshan kanchana commented on PHOENIX-1178:
-------------------------------------------

Hi James,

I am a third year undergraduate from Department of Computer Science and Engineering, University of Moratuwa, Sri Lanka. I am interested in contribute to the project. I have use query optimization for several project in University. I would like to hear more details on this project. 
I would be grateful if you can advise me regarding how to proceed with this project.

Thank you

> Collect and use histogram information during query optimization
> ---------------------------------------------------------------
>
>                 Key: PHOENIX-1178
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-1178
>             Project: Phoenix
>          Issue Type: Bug
>            Reporter: James Taylor
>              Labels: gsoc2016
>
> Gather cardinality information when collecting stats and drive query optimization decisions such as secondary index usage and join ordering based on this to produce the most efficient query plan.



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