GitHub user dongjoon-hyun opened a pull request:
https://github.com/apache/spark/pull/15383
[SPARK-17750][SQL][BACKPORT-2.0] Fix CREATE VIEW with INTERVAL arithmetic
## What changes were proposed in this pull request?
Currently, Spark raises `RuntimeException` when creating a view with
timestamp with INTERVAL arithmetic like the following. The root cause is the
arithmetic expression, `TimeAdd`, was transformed into `timeadd` function as a
VIEW definition. This PR fixes the SQL definition of `TimeAdd` and `TimeSub`
expressions.
```scala
scala> sql("CREATE TABLE dates (ts TIMESTAMP)")
scala> sql("CREATE VIEW view1 AS SELECT ts + INTERVAL 1 DAY FROM dates")
java.lang.RuntimeException: Failed to analyze the canonicalized SQL: ...
```
## How was this patch tested?
Pass Jenkins with a new testcase.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/dongjoon-hyun/spark SPARK-17750-BACK
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/15383.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 #15383
----
commit b8f87ba161eb66093820b944ca3b50f5eb825f6d
Author: Dongjoon Hyun <dongj...@apache.org>
Date: 2016-10-06T19:22:00Z
[SPARK-17750][SQL][backport-2.0] Fix CREATE VIEW with INTERVAL arithmetic
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