[jira] [Commented] (SPARK-12820) Resolve column with full qualified names: db.table.column

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

    [ https://issues.apache.org/jira/browse/SPARK-12820?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15097614#comment-15097614 ] 

Apache Spark commented on SPARK-12820:
--------------------------------------

User 'zhichao-li' has created a pull request for this issue:
https://github.com/apache/spark/pull/10753

> Resolve column with full qualified names: db.table.column
> ---------------------------------------------------------
>
>                 Key: SPARK-12820
>                 URL: https://issues.apache.org/jira/browse/SPARK-12820
>             Project: Spark
>          Issue Type: New Feature
>          Components: SQL
>            Reporter: zhichao-li
>            Priority: Minor
>
> Currently spark only support to specify col name like: `table.col`, or `col` in projection, but it's very common that user use `db.table.col` especially when join table across database.
> Hive doesn't support this for now but it has been used in lot of other traditional db like mysql.



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