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https://issues.apache.org/jira/browse/IMPALA-12990?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17839688#comment-17839688
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ASF subversion and git services commented on IMPALA-12990:
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Commit 858794906158439de8b38a66739d62e1231bbd14 in impala's branch
refs/heads/branch-4.4.0 from Csaba Ringhofer
[ https://gitbox.apache.org/repos/asf?p=impala.git;h=858794906 ]
IMPALA-12990: Fix impala-shell handling of unset rows_deleted
The issue occurred in Python 3 when 0 rows were deleted from Iceberg.
It could also happen in other DMLs with older Impala servers where
TDmlResult.rows_deleted was not set. See the Jira for details of
the error.
Testing:
Extended shell tests for Kudu DML reporting to also cover Iceberg.
Change-Id: I5812b8006b9cacf34a7a0dbbc89a486d8b454438
Reviewed-on: http://gerrit.cloudera.org:8080/21284
Reviewed-by: Impala Public Jenkins <impala-public-jenk...@cloudera.com>
Tested-by: Impala Public Jenkins <impala-public-jenk...@cloudera.com>
> impala-shell broken if Iceberg delete deletes 0 rows
> ----------------------------------------------------
>
> Key: IMPALA-12990
> URL: https://issues.apache.org/jira/browse/IMPALA-12990
> Project: IMPALA
> Issue Type: Bug
> Components: Clients
> Reporter: Csaba Ringhofer
> Assignee: Csaba Ringhofer
> Priority: Major
> Labels: iceberg
>
> Happens only with Python 3
> {code}
> impala-python3 shell/impala_shell.py
> create table icebergupdatet (i int, s string) stored as iceberg;
> alter table icebergupdatet set tblproperties("format-version"="2");
> delete from icebergupdatet where i=0;
> Unknown Exception : '>' not supported between instances of 'NoneType' and
> 'int'
> Traceback (most recent call last):
> File "shell/impala_shell.py", line 1428, in _execute_stmt
> if is_dml and num_rows == 0 and num_deleted_rows > 0:
> TypeError: '>' not supported between instances of 'NoneType' and 'int'
> {code}
> The same erros should also happen when the delete removes > 0 rows, but the
> impala server has an older version that doesn't set TDmlResult.rows_deleted
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