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https://issues.apache.org/jira/browse/HIVE-417?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12877236#action_12877236
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Ashish Thusoo commented on HIVE-417:
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A couple of comments on this:
A complication that happens by doing a rewrite just after parse is that you
loose the ability to report back errors that correspond to the original query.
Also the
metadata that you need to do the rewrite is only available after phase 1 of
semantic analysis. So in my opinion the rewrite should be done after semantic
analysis but before plan generation. Is that what you had in mind...
so something like...
[Query parser]
[Query semantic analysis]
[Query optimization]
...
> 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: 0.3.0, 0.3.1, 0.4.0, 0.6.0
> Reporter: Prasad Chakka
> Assignee: He Yongqiang
> Attachments: hive-417.proto.patch, hive-417－2009-07-18.patch,
> hive-indexing.3.patch
>
>
> Implement indexing on Hive so that lookup and range queries are efficient.
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