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https://issues.apache.org/jira/browse/TAJO-835?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14042967#comment-14042967
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Hyunsik Choi commented on TAJO-835:
-----------------------------------

I thought that we will support Hbase storage and the index and secondary index 
of HBase in the near future. I agree with your suggestion. Currently, there 
have been no concrete requirements, and we can consider more general interface 
later. please go ahead. 

> (Umbrella) Index support
> ------------------------
>
>                 Key: TAJO-835
>                 URL: https://issues.apache.org/jira/browse/TAJO-835
>             Project: Tajo
>          Issue Type: New Feature
>            Reporter: Jihoon Son
>            Priority: Minor
>
> Indexes are widely used to reduce I/O overhead in databases.
> In Tajo, some index structures such as BST are already implemented, but their 
> usages are very limited. Currently, only BST is used for range partition.
> The better utilization of indexes can improve the query performance.



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