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https://issues.apache.org/jira/browse/IMPALA-10569?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17646134#comment-17646134
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Noemi Pap-Takacs commented on IMPALA-10569:
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This feature is added to IcebergContentFileStore (introduced by IMPALA-11591)
in IMPALA-11158.
> Impala should determine Iceberg data file format from Iceberg metadata
> ----------------------------------------------------------------------
>
> Key: IMPALA-10569
> URL: https://issues.apache.org/jira/browse/IMPALA-10569
> Project: IMPALA
> Issue Type: Bug
> Components: Frontend
> Reporter: Zoltán Borók-Nagy
> Priority: Major
> Labels: impala-iceberg
>
> When Impala creates an Iceberg table it sets HMS table property
> 'iceberg.file_format' to indicate the underlying data file format.
> However, when the table was created by Hive or Spark, we don't have this
> property and Impala assumes that the data file format is PARQUET. This
> assumption is just a wild guess, and when it's wrong Impala raises an error
> during query execution.
> Instead of only checking the table property, Impala could also try to
> determine the file format based on Iceberg metadata.
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