Csaba Ringhofer created IMPALA-12990:
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Summary: 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
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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