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https://issues.apache.org/jira/browse/HIVE-680?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12734789#action_12734789
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Ashish Thusoo commented on HIVE-680:
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Actually constraint checking is usually done on inserting and loading rows.
Constraints on reading data are just views, no?
Any concrete example you have in mind.
> add user constraints
> ---------------------
>
> Key: HIVE-680
> URL: https://issues.apache.org/jira/browse/HIVE-680
> Project: Hadoop Hive
> Issue Type: New Feature
> Components: Query Processor
> Reporter: Namit Jain
>
> Many times, because of a few bad input rows, the whole job fails and it takes
> a long time to debug those.
> It might be very useful to add some constraints, which can be checked while
> reading the data.
> An option can be added to ignore configurable number of bad rows.
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