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https://issues.apache.org/jira/browse/IMPALA-10974?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zoltán Borók-Nagy updated IMPALA-10974:
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Labels: impala-iceberg (was: )
> Impala cannot resolve columns of converted Iceberg table
> --------------------------------------------------------
>
> Key: IMPALA-10974
> URL: https://issues.apache.org/jira/browse/IMPALA-10974
> Project: IMPALA
> Issue Type: Bug
> Components: Backend
> Reporter: Zoltán Borók-Nagy
> Priority: Major
> Labels: impala-iceberg
>
> When a regular Parquet/ORC table is converted to Iceberg via Hive, only the
> Iceberg metadata files need to be created. The data files can stay in place.
> This causes problems when the data files don't have field ids for the schema
> elements. Currently Impala resolves columns in data files based on Iceberg
> field ids, but since they are missing, Impala raises an error or returns
> NULLs.
> We could fallback to the default column resolution strategy when the data
> files lack field ids.
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