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https://issues.apache.org/jira/browse/HIVE-9595?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Manuel Meßner updated HIVE-9595:
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Attachment: HIVE-9595.01.patch
> Test whether schema evolution using parquet is possible
> -------------------------------------------------------
>
> Key: HIVE-9595
> URL: https://issues.apache.org/jira/browse/HIVE-9595
> Project: Hive
> Issue Type: Test
> Components: File Formats, Tests
> Affects Versions: 0.13.1
> Reporter: Manuel Meßner
> Priority: Trivial
> Attachments: HIVE-9595.01.patch
>
>
> With https://issues.apache.org/jira/browse/HIVE-7554 a unfortunate else
> branch was introduced to
> org.apache.hadoop.hive.ql.io.parquet.read.DataWritableReadSupport . That else
> branch fired an exception in case the parquet file schema had less fields
> than the table schema. So adding columns to a parquet backed table and query
> the added columns on old partitions wasn't possible anymore. Which was very
> unfortunate for my team. https://issues.apache.org/jira/browse/HIVE-7800
> fixed that, see point 3 in Daniel Weeks' comment
> https://issues.apache.org/jira/browse/HIVE-7800?focusedCommentId=14158594&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14158594
> .
> However Hive-7800 did not introduce a test case for that. I'd love to see one.
> Best,
> Manuel
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