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https://issues.apache.org/jira/browse/HIVE-347?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Namit Jain updated HIVE-347:
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Status: Patch Available (was: Open)
> [hive] lot of mappers due to a user error while specifying the partitioning
> column
> ----------------------------------------------------------------------------------
>
> Key: HIVE-347
> URL: https://issues.apache.org/jira/browse/HIVE-347
> Project: Hadoop Hive
> Issue Type: Bug
> Components: Query Processor
> Reporter: Namit Jain
> Assignee: Namit Jain
> Attachments: hive.347.1.patch, hive.347.2.patch
>
>
> A common scenario when the table is partitioned on 'ds' column which is of
> type 'string' of a certain format 'yyyy-mm-dd'
> However, if the user forgets to add quotes while specifying the query:
> select ... from T where ds = 2009-02-02
> 2009-02-02 is a valid integer expression. So, partition pruning makes all
> partitions unknown, since 2009-02-02 to double conversion is null.
> If all partitions are unknown, in strict mode, we should thrown an error
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