GitHub user marmbrus opened a pull request:
https://github.com/apache/spark/pull/6888
[SPARK-8420][SQL] Fix comparision of timestamps/dates with strings
In earlier versions of Spark SQL we casted `TimestampType` and `DataType`
to `StringType` when it was involved in a binary comparision with a
`StringType`. This allowed comparing a timestamp with a partial date as a user
would expect.
- `time > "2014-06-10"`
- `time > "2014"
In 1.4.0 we tried to cast the String instead into a Timestamp. However,
since partial dates are not a valid complete timestamp this results in `null`
which results in the tuple being filtered.
This PR restores the earlier behavior.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/marmbrus/spark timeCompareString
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/6888.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 #6888
----
commit 04d908f54b9867eaf0117a34f5f80452f3ad0336
Author: Michael Armbrust <mich...@databricks.com>
Date: 2015-06-18T21:58:32Z
[SPARK-8420][SQL] Fix comparision of timestamps/dates with strings
commit aaa95085be186500c440067463c7090b4149a816
Author: Michael Armbrust <mich...@databricks.com>
Date: 2015-06-18T22:01:41Z
newline
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