GitHub user tarekauel opened a pull request:
https://github.com/apache/spark/pull/7516
[SPARK-9177][SQL] Reuse of calendar object in WeekOfYear
https://issues.apache.org/jira/browse/SPARK-9177
@rxin Are we sure that this is thread safe? @chenghao-intel explained in
another PR that every partition (if I remember correctly) uses one expression
instance. This instance isn't used by multiple threads, is it? If not, we are
fine.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/tarekauel/spark SPARK-9177
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/7516.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 #7516
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commit ff97b095c3c80f857f571c0087d271d32b208cb9
Author: Tarek Auel <tarek.a...@googlemail.com>
Date: 2015-07-19T17:40:21Z
[SPARK-9177] Reuse calendar object in interpreted code and codegen
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