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https://issues.apache.org/jira/browse/IMPALA-14185?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Daniel Becker updated IMPALA-14185:
-----------------------------------
Labels: impala-iceberg impala-iceberg-active-backlog (was: )
> Error unnesting nested array from Iceberg with DELETE files
> -----------------------------------------------------------
>
> Key: IMPALA-14185
> URL: https://issues.apache.org/jira/browse/IMPALA-14185
> Project: IMPALA
> Issue Type: Bug
> Reporter: Daniel Becker
> Assignee: Daniel Becker
> Priority: Major
> Labels: impala-iceberg, impala-iceberg-active-backlog
>
> When trying to doubly unnest a 2D array from an Iceberg table that has delete
> files but not for every data file, we run into an error:
> {code:java}
> Filtering an unnested collection that comes from a UNION [ALL] is not
> supported yet.
> {code}
> This is because there is a UNION node because of the Iceberg files, and there
> is an added non-empty conjunct on the collections. Therefore we run into the
> triggering situation of IMPALA-12753. To avoid incorrectness, we disabled
> this case in the commit for IMPALA-12695, but its unintended consequence is
> that it leads to this error with Iceberg tables.
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