GitHub user maropu opened a pull request:

    [SPARK-20963][SQL][FOLLOW-UP] Use UnresolvedSubqueryColumnAliases for 

    ## What changes were proposed in this pull request?
    This pr (follow-up of #18772) used `UnresolvedSubqueryColumnAliases` for 
`visitTableName` in `AstBuilder`, which is a new unresolved `LogicalPlan` 
implemented in #18185.
    ## How was this patch tested?
    Existing tests

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

    $ git pull SPARK-20963-FOLLOWUP

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

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

    This closes #18857
commit 93d5b2402ba2c010b6dc425ee6eb7024b002381d
Author: Takeshi Yamamuro <>
Date:   2017-07-31T14:30:49Z

    Use UnresolvedSubqueryColumnAliases for visitTableName


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