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Posted to dev@hive.apache.org by "jiraposter@reviews.apache.org (JIRA)" <ji...@apache.org> on 2011/08/03 22:49:29 UTC
[jira] [Commented] (HIVE-2322) Add ColumnarSerDe to the list of
native SerDes
[ https://issues.apache.org/jira/browse/HIVE-2322?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13079009#comment-13079009 ]
jiraposter@reviews.apache.org commented on HIVE-2322:
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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/1215/
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(Updated 2011-08-03 20:47:48.616906)
Review request for hive and Paul Yang.
Changes
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Updated the query test results, which don't say "from deserializer" anymore.
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 (updated)
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trunk/ql/src/test/results/clientpositive/alter_merge_stats.q.out 1152020
trunk/ql/src/test/results/clientpositive/alter_partition_format_loc.q.out 1152020
trunk/ql/src/test/results/clientpositive/columnarserde_create_shortcut.q.out 1152020
trunk/ql/src/test/results/clientpositive/combine3.q.out 1152020
trunk/ql/src/test/results/clientpositive/create_1.q.out 1152020
trunk/ql/src/test/results/clientpositive/index_bitmap_rc.q.out 1152020
trunk/ql/src/test/results/clientpositive/index_compact_2.q.out 1152020
trunk/ql/src/test/results/clientpositive/index_compact_3.q.out 1152020
trunk/ql/src/test/results/clientpositive/index_creation.q.out 1152020
trunk/ql/src/test/results/clientpositive/rcfile_bigdata.q.out 1152020
trunk/ql/src/test/results/clientpositive/rcfile_columnar.q.out 1152020
trunk/ql/src/test/results/clientpositive/rcfile_default_format.q.out 1152020
trunk/ql/src/test/results/clientpositive/rcfile_merge4.q.out 1152020
trunk/ql/src/test/results/clientpositive/sample_islocalmode_hook.q.out 1152020
trunk/ql/src/test/results/clientpositive/smb_mapjoin_6.q.out 1152020
trunk/ql/src/test/results/clientpositive/smb_mapjoin_8.q.out 1152020
trunk/serde/src/java/org/apache/hadoop/hive/serde2/SerDeUtils.java 1152020
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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