[ 
https://issues.apache.org/jira/browse/HIVE-2194?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13057463#comment-13057463
 ] 

jirapos...@reviews.apache.org commented on HIVE-2194:
-----------------------------------------------------



bq.  On 2011-06-27 22:47:07, Paul Yang wrote:
bq.  > 
trunk/metastore/src/test/org/apache/hadoop/hive/metastore/TestMetaStoreEventListener.java,
 lines 142-144
bq.  > <https://reviews.apache.org/r/853/diff/3/?file=21427#file21427line142>
bq.  >
bq.  >     Can we check for equality between origP and the old partition 
instead of comparing fields?

The equals() method fails, because the parameter "transient_lastDdlTime" is 
sometimes off by one.  Otherwise, the two objects are entirely equal.  I think 
the db name, table name, and list of values also ensures equality.


bq.  On 2011-06-27 22:47:07, Paul Yang wrote:
bq.  > 
trunk/metastore/src/test/org/apache/hadoop/hive/metastore/TestMetaStoreEventListener.java,
 lines 183-194
bq.  > <https://reviews.apache.org/r/853/diff/3/?file=21427#file21427line183>
bq.  >
bq.  >     origCols.equals(oldCols)?

Fixed


bq.  On 2011-06-27 22:47:07, Paul Yang wrote:
bq.  > 
trunk/metastore/src/test/org/apache/hadoop/hive/metastore/TestMetaStoreEventListener.java,
 lines 159-161
bq.  > <https://reviews.apache.org/r/853/diff/3/?file=21427#file21427line159>
bq.  >
bq.  >     Same here

The equals() method also fails here, even though the tables are logically 
equal.  In the case above, "tbl" does not have a PrincipalPrivilegeSet.  
"oldTable" has a PrincipalPrivilegeSet, but all of it's fields are set to null. 
 This discrepancy comes from how we get the tables, but I think they should 
still be considered equal.


- Sohan


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On 2011-06-21 20:25:04, Sohan Jain wrote:
bq.  
bq.  -----------------------------------------------------------
bq.  This is an automatically generated e-mail. To reply, visit:
bq.  https://reviews.apache.org/r/853/
bq.  -----------------------------------------------------------
bq.  
bq.  (Updated 2011-06-21 20:25:04)
bq.  
bq.  
bq.  Review request for hive and Paul Yang.
bq.  
bq.  
bq.  Summary
bq.  -------
bq.  
bq.  HIVE-2038 introduced the MetaStoreEventListener abstract class that 
defines actions to be performed after particular events on a metastore. Improve 
upon that class by adding events to be performed on "alter table" and "alter 
partition" actions.  Also, update the hive metastore to call the appropriate 
functions of the listeners when the events happen.
bq.  
bq.  
bq.  This addresses bug HIVE-2194.
bq.      https://issues.apache.org/jira/browse/HIVE-2194
bq.  
bq.  
bq.  Diffs
bq.  -----
bq.  
bq.    
trunk/metastore/src/java/org/apache/hadoop/hive/metastore/HiveAlterHandler.java 
1138144 
bq.    
trunk/metastore/src/java/org/apache/hadoop/hive/metastore/HiveMetaStore.java 
1138144 
bq.    
trunk/metastore/src/java/org/apache/hadoop/hive/metastore/MetaStoreEventListener.java
 1138144 
bq.    
trunk/metastore/src/java/org/apache/hadoop/hive/metastore/ObjectStore.java 
1138144 
bq.    
trunk/metastore/src/java/org/apache/hadoop/hive/metastore/events/AlterPartitionEvent.java
 PRE-CREATION 
bq.    
trunk/metastore/src/java/org/apache/hadoop/hive/metastore/events/AlterTableEvent.java
 PRE-CREATION 
bq.    
trunk/metastore/src/test/org/apache/hadoop/hive/metastore/DummyListener.java 
1138144 
bq.    
trunk/metastore/src/test/org/apache/hadoop/hive/metastore/TestMetaStoreEventListener.java
 1138144 
bq.  
bq.  Diff: https://reviews.apache.org/r/853/diff
bq.  
bq.  
bq.  Testing
bq.  -------
bq.  
bq.  Added test cases to TestMetaStoreEventListener.
bq.  
bq.  
bq.  Thanks,
bq.  
bq.  Sohan
bq.  
bq.



> Add actions for alter table and alter partition events for metastore event 
> listeners
> ------------------------------------------------------------------------------------
>
>                 Key: HIVE-2194
>                 URL: https://issues.apache.org/jira/browse/HIVE-2194
>             Project: Hive
>          Issue Type: Improvement
>          Components: Metastore
>            Reporter: Sohan Jain
>            Assignee: Sohan Jain
>         Attachments: HIVE-2194.1.patch, HIVE-2194.3.patch
>
>
> HIVE-2038 introduced the MetaStoreEventListener abstract class that defines 
> actions to be performed after particular events on a metastore.  Improve upon 
> that class by adding events to be performed on "alter table" and "alter 
> partition" actions.

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