[jira] [Commented] (ORC-1082) FileDump and JsonFileDump do not correctly handle the case where the RowIndex does not have column statistics

["Dongjoon Hyun (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ORC-1082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17471582#comment-17471582 ] 

Dongjoon Hyun commented on ORC-1082:
------------------------------------

Thank you, [~Guiyankuang]!

> FileDump and JsonFileDump do not correctly handle the case where the RowIndex does not have column statistics
> -------------------------------------------------------------------------------------------------------------
>
>                 Key: ORC-1082
>                 URL: https://issues.apache.org/jira/browse/ORC-1082
>             Project: ORC
>          Issue Type: Bug
>          Components: Java, tools
>    Affects Versions: 1.6.12, 1.7.2
>            Reporter: Yiqun Zhang
>            Priority: Blocker
>
> Before we can get the ColumnStatistics from RowIndex we need to determine whether it exists or not.
> entry.getStatistics(); does not return null at any time, and will return a default object when  it is not set.
>  
> {code:java}
>       OrcProto.ColumnStatistics colStats = entry.getStatistics();
>       if (colStats == null) {
>         buf.append("no stats at ");
>       }
> {code}



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