GitHub user adrian-wang opened a pull request:
https://github.com/apache/spark/pull/2458
[SPARK-3598][SQL]cast to timestamp should be the same as hive
this patch fixes timestamp smaller than 0 and cast int as timestamp
select cast(1000 as timestamp) from src limit 1;
should return 1970-01-01 00:00:01, but we now take it as 1000 seconds.
also, current implementation has bug when the time is before 1970-01-01
00:00:00.
@rxin @marmbrus @chenghao-intel
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/adrian-wang/spark timestamp
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/2458.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 #2458
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commit 1234f666283172b28d5f17904fc3f2f5065a21ca
Author: Daoyuan Wang <[email protected]>
Date: 2014-09-19T10:11:49Z
fix timestamp smaller than 0 and cast int as timestamp
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