Daniel Becker created IMPALA-14185:
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Summary: 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
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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