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https://issues.apache.org/jira/browse/IMPALA-9732?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tamas Mate resolved IMPALA-9732.
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Fix Version/s: Impala 4.0
Resolution: Fixed
> Improve exceptions of unsupported HdfsTableSink formats
> -------------------------------------------------------
>
> Key: IMPALA-9732
> URL: https://issues.apache.org/jira/browse/IMPALA-9732
> Project: IMPALA
> Issue Type: Improvement
> Components: Frontend
> Affects Versions: Impala 3.4.0
> Reporter: Tamas Mate
> Assignee: Tamas Mate
> Priority: Major
> Fix For: Impala 4.0
>
>
> For unsupported table writes an IllegalStateException is thrown during
> planning
> [here|https://github.com/apache/impala/blame/e46bbf29d43f1d3b118933d06c63ceb135beaf9c/fe/src/main/java/org/apache/impala/planner/HdfsTableSink.java#L144]:
> {code:java}
> Preconditions.checkState(false, "Unsupported TableSink format(s): " +
> Joiner.on(',').join(unsupportedFormats));
> {code}
> This exception could be improved by changing the IllegalStateException to a
> more meaningful one and the "TableSink format" to a term which is familiar
> for the users.
> Additionally, the exception is thrown generally when a table has a partition
> with unsupported format, dynamic partitioning is not taken into
> consideration. The check could be extended to only throw exception when the
> partition that is being written is unsupported.
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