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https://issues.apache.org/jira/browse/HIVE-11912?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14901778#comment-14901778
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Ferdinand Xu commented on HIVE-11912:
-------------------------------------

Thank you for the clarification.
The original purpose for HIVE-7858 is that ORC supports this way to configure 
the table compression properties. 
The patch LGTM. One minor question about the patch:
{noformat}
108         Map<String, String> defaultSerdeProps = 
descriptor.getDefaultSerdeProps();
109         if (defaultSerdeProps != null) {
110           serdeProps.putAll(defaultSerdeProps);
111         }
{noformat}
Is that possible the original serde properties overrided by the default value?

> Make snappy compression default for parquet tables
> --------------------------------------------------
>
>                 Key: HIVE-11912
>                 URL: https://issues.apache.org/jira/browse/HIVE-11912
>             Project: Hive
>          Issue Type: Improvement
>          Components: File Formats
>            Reporter: Szehon Ho
>            Assignee: Szehon Ho
>         Attachments: HIVE-11912.patch
>
>
> Snappy is a popular compression codec for Parquet, and is the default in many 
> Parquet applications, increasing the performance.  
> This change would make it the default for new Hive Parquet tables.



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