GitHub user wangyum opened a pull request:
https://github.com/apache/spark/pull/20064
[SPARK-22893][SQL] Unified the data type mismatch message
## What changes were proposed in this pull request?
We should use `dataType.simpleString` to unified the data type mismatch
message:
Before:
```
spark-sql> select cast(1 as binary);
Error in query: cannot resolve 'CAST(1 AS BINARY)' due to data type
mismatch: cannot cast IntegerType to BinaryType; line 1 pos 7;
```
After:
```
park-sql> select cast(1 as binary);
Error in query: cannot resolve 'CAST(1 AS BINARY)' due to data type
mismatch: cannot cast int to binary; line 1 pos 7;
```
## How was this patch tested?
Exist test.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/wangyum/spark SPARK-22893
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/20064.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 #20064
----
commit 8540b912e8e846f9e0fb8c94a8dcc48a05be6a57
Author: Yuming Wang <wgyumg@...>
Date: 2017-12-23T11:45:45Z
Unified the data type mismatch message.
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