GitHub user techaddict opened a pull request:
https://github.com/apache/spark/pull/14036
[SPARK-16323] [SQL] Add IntegerDivide to avoid unnecessary cast
## What changes were proposed in this pull request?
Add IntegerDivide to avoid unnecessary cast
Before:
```
scala> spark.sql("select 6 div 3").explain(true)
...
== Analyzed Logical Plan ==
CAST((6 / 3) AS BIGINT): bigint
Project [cast((cast(6 as double) / cast(3 as double)) as bigint) AS
CAST((6 / 3) AS BIGINT)#5L]
+- OneRowRelation$
...
```
After:
```
scala> spark.sql("select 6 div 3").explain(true)
...
== Analyzed Logical Plan ==
(6 / 3): int
Project [(6 / 3) AS (6 / 3)#11]
+- OneRowRelation$
...
```
## How was this patch tested?
Existing Tests and added new ones
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/techaddict/spark SPARK-16323
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/14036.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 #14036
----
commit 067b788b05846e659615feef8613f8965573f150
Author: Sandeep Singh <sand...@techaddict.me>
Date: 2016-07-03T09:00:11Z
[SPARK-16323] [SQL] Add IntegerDivide to avoid unnecessary cast
Before:
```
scala> spark.sql("select 6 div 3").explain(true)
...
== Analyzed Logical Plan ==
CAST((6 / 3) AS BIGINT): bigint
Project [cast((cast(6 as double) / cast(3 as double)) as bigint) AS
CAST((6 / 3) AS BIGINT)#5L]
+- OneRowRelation$
...
```
After:
```
scala> spark.sql("select 6 div 3").explain(true)
...
== Analyzed Logical Plan ==
(6 / 3): int
Project [(6 / 3) AS (6 / 3)#11]
+- OneRowRelation$
...
```
commit e4e42c35b0236dff6aedf6468a7d94f80bc6023b
Author: Sandeep Singh <sand...@techaddict.me>
Date: 2016-07-03T09:00:59Z
Merge branch 'master' into SPARK-16323
----
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