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From gatorsmile <...@git.apache.org>
Subject [GitHub] spark pull request #15234: [SPARK-17660] [SQL] DESC FORMATTED for VIEW Lacks...
Date Sun, 25 Sep 2016 04:51:38 GMT
GitHub user gatorsmile opened a pull request:

    https://github.com/apache/spark/pull/15234

    [SPARK-17660] [SQL] DESC FORMATTED for VIEW Lacks View Definition

    ### What changes were proposed in this pull request?
    Before this PR, DESC FORMATTED does not have a section for the view definition. We should
add it for permanent views, like what Hive does.
    
    ```
    +----------------------------+-------------------------------------------------------------------------------------------------------------------------------------+-------+
    |col_name                    |data_type                                              
                                                                             |comment|
    +----------------------------+-------------------------------------------------------------------------------------------------------------------------------------+-------+
    |a                           |int                                                    
                                                                             |null   |
    |                            |                                                       
                                                                             |       |
    |# Detailed Table Information|                                                       
                                                                             |       |
    |Database:                   |default                                                
                                                                             |       |
    |Owner:                      |xiaoli                                                 
                                                                             |       |
    |Create Time:                |Sat Sep 24 21:46:19 PDT 2016                           
                                                                             |       |
    |Last Access Time:           |Wed Dec 31 16:00:00 PST 1969                           
                                                                             |       |
    |Location:                   |                                                       
                                                                             |       |
    |Table Type:                 |VIEW                                                   
                                                                             |       |
    |Table Parameters:           |                                                       
                                                                             |       |
    |  transient_lastDdlTime     |1474778779                                             
                                                                             |       |
    |                            |                                                       
                                                                             |       |
    |# Storage Information       |                                                       
                                                                             |       |
    |SerDe Library:              |org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe     
                                                                             |       |
    |InputFormat:                |org.apache.hadoop.mapred.SequenceFileInputFormat       
                                                                             |       |
    |OutputFormat:               |org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat
                                                                           |       |
    |Compressed:                 |No                                                     
                                                                             |       |
    |Storage Desc Parameters:    |                                                       
                                                                             |       |
    |  serialization.format      |1                                                      
                                                                             |       |
    |                            |                                                       
                                                                             |       |
    |# View Information          |                                                       
                                                                             |       |
    |View Original Text:         |SELECT * FROM tbl                                      
                                                                             |       |
    |View Expanded Text:         |SELECT `gen_attr_0` AS `a` FROM (SELECT `gen_attr_0` FROM
(SELECT `a` AS `gen_attr_0` FROM `default`.`tbl`) AS gen_subquery_0) AS tbl|       |
    +----------------------------+-------------------------------------------------------------------------------------------------------------------------------------+-------+
    ```
    
    ### How was this patch tested?
    Added a test case

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/gatorsmile/spark descFormattedView

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/spark/pull/15234.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #15234
    
----
commit 4d6d0979025d0d0dfcde0b8db4209438685ca5c3
Author: gatorsmile <gatorsmile@gmail.com>
Date:   2016-09-25T04:42:02Z

    fix.

----


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