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https://issues.apache.org/jira/browse/HIVE-3833?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13539588#comment-13539588
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Namit Jain commented on HIVE-3833:
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The object inspectors need to be initialized based on partition metadata.
That leaves us with the following options:
1. Create an operator tree per partition
2. Create a dummy operator after table scan (which converts the partition data
into table data).
This operator will be different for different inputs.
Option 2. seems like a better option.
> object inspectors should be initialized based on partition metadata
> -------------------------------------------------------------------
>
> Key: HIVE-3833
> URL: https://issues.apache.org/jira/browse/HIVE-3833
> Project: Hive
> Issue Type: Improvement
> Components: Query Processor
> Reporter: Namit Jain
> Assignee: Namit Jain
>
> Currently, different partitions can be picked up for the same input split
> based on the
> serdes' etc. And, we dont allow to change the schema for
> LazyColumnarBinarySerDe.
> Instead of that, different partitions should be part of the same split, only
> if the
> partition schemas exactly match. The operator tree object inspectors should
> be based
> on the partition schema. That would give greater flexibility and also help
> using binary serde with rcfile
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