[hive] lot of mappers due to a user error while specifying the partitioning
column
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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
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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