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From "ASF GitHub Bot (Jira)" <>
Subject [jira] [Work logged] (HIVE-22826) ALTER TABLE RENAME COLUMN doesn't update list of bucketed column names
Date Fri, 02 Oct 2020 15:49:00 GMT


ASF GitHub Bot logged work on HIVE-22826:

                Author: ASF GitHub Bot
            Created on: 02/Oct/20 15:48
            Start Date: 02/Oct/20 15:48
    Worklog Time Spent: 10m 
      Work Description: ashish-kumar-sharma commented on a change in pull request #1528:

File path: ql/src/java/org/apache/hadoop/hive/ql/ddl/table/column/change/
@@ -72,6 +74,10 @@ protected void doAlteration(Table table, Partition partition) throws HiveExcepti
         if (desc.getNewColumnComment() != null) {
+        if (CollectionUtils.isNotEmpty(sd.getBucketCols()) && sd.getBucketCols().contains(oldColumnName))

Review comment:
       As per HIVE column contract it should be case in-sensitive. But it is not handled properly
in  query planning of "alter table {tablename} change". So I have added toLowerCase() in query
planning also.

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Issue Time Tracking

    Worklog Id:     (was: 494019)
    Time Spent: 2.5h  (was: 2h 20m)

>  ALTER TABLE RENAME COLUMN doesn't update list of bucketed column names
> -----------------------------------------------------------------------
>                 Key: HIVE-22826
>                 URL:
>             Project: Hive
>          Issue Type: Bug
>          Components: Query Planning
>    Affects Versions: 4.0.0
>            Reporter: Karen Coppage
>            Assignee: Ashish Sharma
>            Priority: Major
>              Labels: pull-request-available
>         Attachments: unitTest.patch
>          Time Spent: 2.5h
>  Remaining Estimate: 0h
> Compaction for tables where a bucketed column has been renamed fails since the list of
bucketed columns in the StorageDescriptor doesn't get updated when the column is renamed,
therefore we can't recreate the table correctly during compaction.
> Attached a unit test that fails.

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