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https://issues.apache.org/jira/browse/HIVE-2478?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13120890#comment-13120890
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kalyan ram commented on HIVE-2478:
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Yes we can use EXPLAIN as well. In MySql older versions for some queries having
sub queries <explain> was executing the sub queries so I was thinking on those
terms. So in Hive is it that we never execute the query if EXPLAIN is present ?
This feature might still be useful in remote cases where you can't go and
change your queries. For example if you want to check if your queries will work
against a new version of hive we can set this property and check without
modifying the query.
> Support dry run option in hive
> ------------------------------
>
> Key: HIVE-2478
> URL: https://issues.apache.org/jira/browse/HIVE-2478
> Project: Hive
> Issue Type: Improvement
> Components: Configuration
> Affects Versions: 0.9.0
> Reporter: kalyan ram
> Priority: Minor
> Attachments: HIVE-2478-1.patch
>
>
> Hive currently doesn't support a dry run option. For some complex queries we
> just want to verify the query syntax initally before running it. A dry run
> option where just the parsing is done without actual execution is a good
> option.
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