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https://issues.apache.org/jira/browse/HIVE-417?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12710249#action_12710249
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He Yongqiang commented on HIVE-417:
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Prasad, I think the hash based index is more like a projection, because number
of rows with same hash value of indexed columns will be very low.
And in most cases, the block/pos list's size will only be 1.
> Implement Indexing in Hive
> --------------------------
>
> Key: HIVE-417
> URL: https://issues.apache.org/jira/browse/HIVE-417
> Project: Hadoop Hive
> Issue Type: New Feature
> Components: Metastore, Query Processor
> Affects Versions: 0.2.0, 0.3.0, 0.3.1, 0.4.0
> Reporter: Prasad Chakka
> Assignee: He Yongqiang
>
> Implement indexing on Hive so that lookup and range queries are efficient.
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