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https://issues.apache.org/jira/browse/IMPALA-15191?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zoltán Borók-Nagy reassigned IMPALA-15191:
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Assignee: Zoltán Borók-Nagy
> Join using _row_id hits DCHECK
> ------------------------------
>
> Key: IMPALA-15191
> URL: https://issues.apache.org/jira/browse/IMPALA-15191
> Project: IMPALA
> Issue Type: Bug
> Components: Frontend
> Reporter: Michael Smith
> Assignee: Zoltán Borók-Nagy
> Priority: Major
> Labels: iceberg
>
> With the following setup
> {code:java}
> create table fk (_row_id int primary key) stored as kudu;
> insert into fk values (1);
> create table fi (i int) stored as iceberg tblproperties('format-version'='3');
> insert into fi values (10), (11);{code}
> running
> {code:java}
> select i from fi join fk using (_row_id);{code}
> triggers the DCHECK at
> [https://github.com/apache/impala/blob/master/be/src/exec/hdfs-scan-node-base.cc#L1122.]
> If I continue on {{_row_id}} - which I think is wrong because
> {{{}_row_id{}}}'s not supposed to be sent to the backend - the results are
> wrong.
> I've run into the same failure in a more complicated scenario with {{{}on
> alias1._row_id = alias2._row_id{}}}, but I haven't figured out a more
> isolated reproduction.
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