GitHub user jiangxb1987 opened a pull request:
https://github.com/apache/spark/pull/16561
[SPARK-18209][SQL] Alias the view with its child by mapping the columns by
index
## What changes were proposed in this pull request?
This PR is a follow-up to address the comments
https://github.com/apache/spark/pull/16233/files#r95669988 and
https://github.com/apache/spark/pull/16233/files#r95662299.
We should alias the view with its child by mapping the columns by index,
which follows the behavior in Hive. If the dataType of the outputs from the
view and the child don't match up, we should throw an Exception.
## How was this patch tested?
Add new test cases in `SQLViewSuite`.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/jiangxb1987/spark alias-view
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/16561.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #16561
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commit 0e823409f1ff4689883408992c5a3a739d39a8d2
Author: jiangxingbo <jiangxb1...@gmail.com>
Date: 2017-01-12T10:06:04Z
alias view with child by map the columns by index.
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