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https://issues.apache.org/jira/browse/HIVE-2525?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13135227#comment-13135227
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Namit Jain commented on HIVE-2525:
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hive> explain dfs -ls <PATH>;
FAILED: Parse Error: line 1:8 cannot recognize input near 'dfs' '-' 'ls' in
statement
The above error is a legitimate parse error.
If we want to fix it with a better error message, we should catch the parser
error and throw
a beter message (the way you have put it in CliDriver). The approach you have
taken is difficult
to maintain in the long run.
> Introduce proper error messages, when explain fails on commands that
> otherwise could be succesful (commands that are not analyzed by Semantic
> Analyzer)
> -------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: HIVE-2525
> URL: https://issues.apache.org/jira/browse/HIVE-2525
> Project: Hive
> Issue Type: Improvement
> Reporter: Robert Surówka
> Assignee: Robert Surówka
> Priority: Trivial
> Attachments: HIVE-2525.1.patch
>
>
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