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https://issues.apache.org/jira/browse/PARQUET-2219?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17656691#comment-17656691
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ASF GitHub Bot commented on PARQUET-2219:
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wgtmac commented on PR #1018:
URL: https://github.com/apache/parquet-mr/pull/1018#issuecomment-1377485663
> Thanks you for fixing this. I've added some comments. Also, could you add
a similar test for the filtered row groups?
Thanks for your review @gszadovszky !
I have addressed all of your comments. Please take a look again.
> ParquetFileReader throws a runtime exception when a file contains only
> headers and now row data
> -----------------------------------------------------------------------------------------------
>
> Key: PARQUET-2219
> URL: https://issues.apache.org/jira/browse/PARQUET-2219
> Project: Parquet
> Issue Type: Bug
> Components: parquet-mr
> Affects Versions: 1.12.1
> Reporter: chris stockton
> Assignee: Gang Wu
> Priority: Minor
>
> Google BigQuery has an option to export table data to Parquet-formatted
> files, but some of these files are written with header data only. When this
> happens and these files are opened with the ParquetFileReader, an exception
> is thrown:
> {{RuntimeException("Illegal row group of 0 rows");}}
> It seems like the ParquetFileReader should not throw an exception when it
> encounters such a file.
> https://github.com/apache/parquet-mr/blob/master/parquet-hadoop/src/main/java/org/apache/parquet/hadoop/ParquetFileReader.java#L949
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