[jira] [Commented] (HIVE-20241) Support partitioning spec in CTAS statements

["Barnabas Maidics (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-20241?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16738056#comment-16738056 ] 

Barnabas Maidics commented on HIVE-20241:
-----------------------------------------

I think the documentation should be updated about CTAS: [https://cwiki.apache.org/confluence/display/Hive/LanguageManual+DDL#LanguageManualDDL-CreateTableAsSelect(CTAS).]
It says: 
"CTAS has these restrictions:
 * The target table cannot be a partitioned table."

As I understand this is no longer a restriction. 

 

> Support partitioning spec in CTAS statements
> --------------------------------------------
>
>                 Key: HIVE-20241
>                 URL: https://issues.apache.org/jira/browse/HIVE-20241
>             Project: Hive
>          Issue Type: Improvement
>          Components: Parser
>            Reporter: Jesus Camacho Rodriguez
>            Assignee: Jesus Camacho Rodriguez
>            Priority: Major
>              Labels: TODOC3.2
>             Fix For: 4.0.0, 3.2.0
>
>         Attachments: HIVE-20241.01.patch, HIVE-20241.01.patch, HIVE-20241.01.patch, HIVE-20241.02.patch, HIVE-20241.03.patch, HIVE-20241.patch
>
>
> Currently, for partitioned tables we will declare the table and insert the data in different operations. This issue is to extend CTAS statement to support specifying partition columns.
> For instance:
> {code:sql}
> CREATE TABLE partition_ctas_1 PARTITIONED BY (key) AS
> SELECT value, key FROM src where key > 200 and key < 300;
> {code}



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