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https://issues.apache.org/jira/browse/HIVE-2322?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13072534#comment-13072534
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jirapos...@reviews.apache.org commented on HIVE-2322:
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https://reviews.apache.org/r/1215/
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Review request for hive and Paul Yang.
Summary
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We store metadata about ColumnarSerDes in the metastore, so it should be
considered a native SerDe. Then, column information can be retrieved from the
metastore instead of from deserialization.
This addresses bug HIVE-2322.
https://issues.apache.org/jira/browse/HIVE-2322
Diffs
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trunk/serde/src/java/org/apache/hadoop/hive/serde2/SerDeUtils.java 1151219
Diff: https://reviews.apache.org/r/1215/diff
Testing
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describe formatted tmp_tbl_name;
now returns the column's comments instead of "from deserializer"
Thanks,
Sohan
> Add ColumnarSerDe to the list of native SerDes
> ----------------------------------------------
>
> Key: HIVE-2322
> URL: https://issues.apache.org/jira/browse/HIVE-2322
> Project: Hive
> Issue Type: Bug
> Components: Metastore, Serializers/Deserializers
> Reporter: Sohan Jain
> Assignee: Sohan Jain
> Attachments: HIVE-2322.1.patch
>
>
> We store metadata about ColumnarSerDes in the metastore, so it should be
> considered a native SerDe. Then, column information can be retrieved from
> the metastore instead of from deserialization.
> Currently, for non-native SerDes, column comments are only shown as "from
> deserializer". Adding ColumnarSerDe to the list of native SerDes will
> persist column comments. See HIVE-2171 for persisting the column comments of
> custom SerDes.
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