[jira] [Assigned] (SPARK-7067) Can't resolve nested column in ORDER BY

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

     [ https://issues.apache.org/jira/browse/SPARK-7067?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-7067:
-----------------------------------

    Assignee:     (was: Apache Spark)

> Can't resolve nested column in ORDER BY
> ---------------------------------------
>
>                 Key: SPARK-7067
>                 URL: https://issues.apache.org/jira/browse/SPARK-7067
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>            Reporter: Wenchen Fan
>
> In order to avoid breaking existing HiveQL queries, the current way we resolve column in ORDER BY is: first resolve based on what comes from the select clause and then fall back on its child only when this fails.
> However, this case will fail:
> {code}
> test("orderby queries") {
>   jsonRDD(sparkContext.makeRDD(
>     """{"a": {"b": [{"c": 1}]}, "b": [{"d": 1}]}""" :: Nil)).registerTempTable("t")
>   sql("SELECT a.b FROM t ORDER BY b[0].d").queryExecution.analyzed
> }
> {code}
> As hive doesn't support resolve ORDER BY attribute not exist in select clause, so this problem is spark sql only.



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