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https://issues.apache.org/jira/browse/SPARK-59149?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18110251#comment-18110251
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Uroš Bojanić commented on SPARK-59149:
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In progress: https://github.com/apache/spark/pull/58449
> Use isEmpty instead of size == 0 in OrcUtils
> --------------------------------------------
>
> Key: SPARK-59149
> URL: https://issues.apache.org/jira/browse/SPARK-59149
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 4.4.0
> Reporter: Uroš Bojanić
> Priority: Minor
>
> OrcUtils checks for an empty ORC schema two ways: readSchema uses
> reader.getSchema.getFieldNames.size == 0, while elsewhere the file uses
> .isEmpty (e.g. orcFieldNames.isEmpty). This changes the former to .isEmpty so
> the file is consistent and uses the idiomatic emptiness check.
> java.util.List.isEmpty() is exactly size() == 0, so behavior is identical.
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