Revision 580ecfd7a8464e17eaa6f62a8b6558c0fb8e3f8b authored by Reynold Xin on 12 June 2017, 21:07:51 UTC, committed by Xiao Li on 12 June 2017, 21:08:21 UTC
## What changes were proposed in this pull request?
This patch fixes a bug that can cause NullPointerException in LikeSimplification, when the pattern for like is null.

## How was this patch tested?
Added a new unit test case in LikeSimplificationSuite.

Author: Reynold Xin <rxin@databricks.com>

Closes #18273 from rxin/SPARK-21059.

(cherry picked from commit b1436c7496161da1f4fa6950a06de62c9007c40c)
Signed-off-by: Xiao Li <gatorsmile@gmail.com>
1 parent a6b7875
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