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https://issues.apache.org/jira/browse/HIVE-4900?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13715465#comment-13715465
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Xuefu Zhang commented on HIVE-4900:
-----------------------------------
Apparently we cannot remove "SORT_ORDER" section of package.jdo, even if all
instances will be embedded. This is demonstrated in DN example:
http://www.datanucleus.org/products/accessplatform/jdo/orm/embedded.html#Collection.
What is missing in original package.jdo is the "comment" field in MFieldSchema
isn't mapped to a COLUMN in some tables: TYPE_FIELDS and COLUMNS_V2. However,
there was a mapping in table PARTITION_KEYS. Old DN didn't complain, but the
3.2 DN does.
So, the fix is simply following what's done for PARTITION_KEYS:
I have tested the new patch with the new DN and no test fails. The next test
result will have a say how it goes with the old DN.
I also tested mysql with "create table", which will fail w/o this patch.
> Fix the mismatched column names in package.jdo
> ----------------------------------------------
>
> Key: HIVE-4900
> URL: https://issues.apache.org/jira/browse/HIVE-4900
> Project: Hive
> Issue Type: Bug
> Components: Metastore
> Affects Versions: 0.10.0, 0.11.0
> Reporter: Xuefu Zhang
> Assignee: Xuefu Zhang
> Priority: Minor
> Fix For: 0.12.0
>
> Attachments: HIVE-4900.1.patch, HIVE-4900.2.patch, HIVE-4900.patch
>
>
> There are several errors in DataNucleus O-R mapping file, package.jdo, which
> are not complained by the existing DN version. These errors may be subject to
> future DN complaint (as experienced in HIVE-3632 and HIVE-2084). However, it
> is still better if we fix these errors as it also creates some confusion in
> the community.
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