GitHub user lianhuiwang opened a pull request:
https://github.com/apache/spark/pull/13397
[SPARK-15649] [SQL] Avoid to serialize MetastoreRelation in
HiveTableScanExec
## What changes were proposed in this pull request?
in HiveTableScanExec, schema is lazy and is related with
relation.attributeMap. So it needs to serialize MetastoreRelation when
serializing task binary bytes.It can avoid to serialize MetastoreRelation.
## How was this patch tested?
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/lianhuiwang/spark avoid-serialize
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/13397.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 #13397
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commit 1ab2d43d81c987162124f949bbed64c1d17056f7
Author: Lianhui Wang <[email protected]>
Date: 2016-05-30T03:32:37Z
init commit
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