Github user yhuai commented on the pull request:
https://github.com/apache/spark/pull/9685#issuecomment-158219111
Seems Hive is still wrong when the data type is int. See
```
hive> SELECT CAST(CAST(-1200 AS TIMESTAMP) AS INT);
OK
-2
Time taken: 0.047 seconds, Fetched: 1 row(s)
hive> SELECT CAST(CAST(-1200.0 AS TIMESTAMP) AS INT);
OK
-1200
Time taken: 0.046 seconds, Fetched: 1 row(s)
```
Let's delete those golden files and create our own test (using `test(...)
{...}` instead of using `createQueryTest(..., ...)`).
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