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https://issues.apache.org/jira/browse/IMPALA-2579?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16930989#comment-16930989
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Tim Armstrong commented on IMPALA-2579:
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IMPALA-8096 added the option for a limit.
I don't think we want to have an implicit limit - clients should do that if
they want it, but we're not really in the business of truncating result sets.
> Limiting the number of records to be fetched/returned by default
> ----------------------------------------------------------------
>
> Key: IMPALA-2579
> URL: https://issues.apache.org/jira/browse/IMPALA-2579
> Project: IMPALA
> Issue Type: Improvement
> Components: Backend
> Affects Versions: Impala 2.2.4
> Reporter: Eric Lin
> Priority: Minor
>
> It would be nice to have a feature to limit the resultset to be returned back
> to client side, either impala-shell or tableau or others.
> This can be achieved by setting a default limit on the following:
> 1) number of rows
> 2) data size
> This is particularly useful when dealing with tables that have millions or
> billions of records (which is in most cases), and users usually forget to
> manually LIMIT the result and it will either crash the client software or
> have to end up manually killing the query.
> Thanks
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