GitHub user liancheng opened a pull request:
https://github.com/apache/spark/pull/2686
[SPARK-3824][SQL] Sets in-memory table default storage level to
MEMORY_AND_DISK
Using `MEMORY_AND_DISK` as default storage level for in-memory table
caching. Due to the in-memory columnar representation, recomputing an in-memory
cached table partitions can be very expensive.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/liancheng/spark spark-3824
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/2686.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 #2686
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commit 07f0204c3b5c61738b807ea1a4a55ba592f39176
Author: Cheng Lian <[email protected]>
Date: 2014-10-07T01:55:14Z
Sets in-memory table default storage level to MEMORY_AND_DISK
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