GitHub user ueshin opened a pull request:
https://github.com/apache/spark/pull/532
[SPARK-1608] [SQL] Fix Cast.nullable when cast from StringType to
NumericType/TimestampType.
`Cast.nullable` should be `true` when cast from `StringType` to
`NumericType` or `TimestampType`.
Because if `StringType` expression has an illegal number string or illegal
timestamp string, the casted value becomes `null`.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/ueshin/apache-spark issues/SPARK-1608
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/532.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 #532
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commit 9fc93800b8fce3ea264357751606219a2430575c
Author: Takuya UESHIN <[email protected]>
Date: 2014-04-24T10:20:09Z
Fix Cast.nullable when cast from StringType to NumericType/TimestampType.
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