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From "Yongzhi Chen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-13632) Hive failing on insert empty array into parquet table
Date Thu, 28 Apr 2016 22:14:13 GMT

    [ https://issues.apache.org/jira/browse/HIVE-13632?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15263134#comment-15263134
] 

Yongzhi Chen commented on HIVE-13632:
-------------------------------------

[~spena], I think I tried it, the result is [null]

> Hive failing on insert empty array into parquet table
> -----------------------------------------------------
>
>                 Key: HIVE-13632
>                 URL: https://issues.apache.org/jira/browse/HIVE-13632
>             Project: Hive
>          Issue Type: Bug
>          Components: Serializers/Deserializers
>    Affects Versions: 1.1.0
>            Reporter: Yongzhi Chen
>            Assignee: Yongzhi Chen
>         Attachments: HIVE-13632.1.patch
>
>
> The insert will fail with following stack:
> {noformat}
> by: parquet.io.ParquetEncodingException: empty fields are illegal, the field should be
ommited completely instead
> 	at parquet.io.MessageColumnIO$MessageColumnIORecordConsumer.endField(MessageColumnIO.java:271)
> 	at org.apache.hadoop.hive.ql.io.parquet.write.DataWritableWriter$ListDataWriter.write(DataWritableWriter.java:271)
> 	at org.apache.hadoop.hive.ql.io.parquet.write.DataWritableWriter$GroupDataWriter.write(DataWritableWriter.java:199)
> 	at org.apache.hadoop.hive.ql.io.parquet.write.DataWritableWriter$MessageDataWriter.write(DataWritableWriter.java:215)
> 	at org.apache.hadoop.hive.ql.io.parquet.write.DataWritableWriter.write(DataWritableWriter.java:88)
> 	at org.apache.hadoop.hive.ql.io.parquet.write.DataWritableWriteSupport.write(DataWritableWriteSupport.java:59)
> 	at org.apache.hadoop.hive.ql.io.parquet.write.DataWritableWriteSupport.write(DataWritableWriteSupport.java:31)
> 	at parquet.hadoop.InternalParquetRecordWriter.write(InternalParquetRecordWriter.java:116)
> 	at parquet.hadoop.ParquetRecordWriter.write(ParquetRecordWriter.java:123)
> 	at parquet.hadoop.ParquetRecordWriter.write(ParquetRecordWriter.java:42)
> 	at org.apache.hadoop.hive.ql.io.parquet.write.ParquetRecordWriterWrapper.write(ParquetRecordWriterWrapper.java:111)
> 	at org.apache.hadoop.hive.ql.io.parquet.write.ParquetRecordWriterWrapper.write(ParquetRecordWriterWrapper.java:124)
> 	at org.apache.hadoop.hive.ql.exec.FileSinkOperator.processOp(FileSinkOperator.java:697)
> {noformat}
> Reproduce:
> {noformat}
> create table test_small (
> key string,
> arrayValues array<string>)
> stored as parquet;
> insert into table test_small select 'abcd', array() from src limit 1;
> {noformat}



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