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Posted to dev@parquet.apache.org by "Gang Wu (Jira)" <ji...@apache.org> on 2023/03/16 09:28:00 UTC
[jira] [Resolved] (PARQUET-2219) ParquetFileReader throws a runtime exception when a file contains only headers and now row data
[ https://issues.apache.org/jira/browse/PARQUET-2219?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Gang Wu resolved PARQUET-2219.
------------------------------
Resolution: Fixed
> 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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