GitHub user wangyum opened a pull request:
https://github.com/apache/spark/pull/23014
[MINOR][SQL] Add disable bucketedRead workaround when throw RuntimeException
## What changes were proposed in this pull request?
It will throw `RuntimeException` when read from bucketed table(about 1.7G
per bucket file):

Default(enable bucket read):

Disable bucket read:

## How was this patch tested?
manual tests
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/wangyum/spark anotherWorkaround
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/23014.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 #23014
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commit a41551efd667f3ed6c30b0a2b262818e37d00884
Author: Yuming Wang <yumwang@...>
Date: 2018-11-12T12:06:35Z
Add new workaround
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