[jira] [Commented] (SPARK-12789) Support order by ordinal in SQL

["Apache Spark (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-12789?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15201071#comment-15201071 ] 

Apache Spark commented on SPARK-12789:
--------------------------------------

User 'gatorsmile' has created a pull request for this issue:
https://github.com/apache/spark/pull/11815

> Support order by ordinal in SQL
> -------------------------------
>
>                 Key: SPARK-12789
>                 URL: https://issues.apache.org/jira/browse/SPARK-12789
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>            Reporter: zhichao-li
>            Priority: Minor
>
> This is to support order by position in SQL, e.g.
> {noformat}
> select c1, c2, c3 from tbl order by 1 desc, 3
> {noformat}
> should be equivalent to
> {noformat}
> select c1, c2, c3 from tbl order by c1 desc, c3
> {noformat}
> We only convert integer literals (not foldable expressions).
> We should make sure this also works with select *.
> This should be controlled by config option spark.sql.orderByOrdinal.



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