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From "Raghotham Murthy (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HIVE-132) Show table and describe results should be read via FetchTask
Date Fri, 19 Dec 2008 07:59:44 GMT

    [ https://issues.apache.org/jira/browse/HIVE-132?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12658033#action_12658033

Raghotham Murthy commented on HIVE-132:


1. I was just concentrating on getting show tables and describe working first. Will add show
partitions next.
2. I cant remove context specific code from Driver.fetch() since 'extended' option returns
free-form results. It might be a good idea to return structured results for extended as well
as explain statements.
3. Will add more comments.

> Show table and describe results should be read via FetchTask
> ------------------------------------------------------------
>                 Key: HIVE-132
>                 URL: https://issues.apache.org/jira/browse/HIVE-132
>             Project: Hadoop Hive
>          Issue Type: New Feature
>          Components: Query Processor
>    Affects Versions: 0.2.0
>            Reporter: Raghotham Murthy
>            Assignee: Raghotham Murthy
>            Priority: Minor
>             Fix For: 0.2.0
>         Attachments: hive-132.1.patch
> Right now there is a different code path in the Driver for show tables/describe etc.
By adding the FetchTask the code paths will be merged. In addition, the results of these statements
will be readable via JDBC.
> Going forward, we should provide SQL access to our metastore similar to access provided
by Oracle or mysql to their catalog tables. In this jira, I will just add schema information
to show tables and describe queries.

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