GitHub user HyukjinKwon opened a pull request:
https://github.com/apache/spark/pull/16786
[SPARK-19446][SQL] Remove unused findTightestCommonType in TypeCoercion
## What changes were proposed in this pull request?
This PR proposes to remove unused `findTightestCommonType` in
`TypeCoercion` as suggested in
https://github.com/apache/spark/pull/16777#discussion_r99283834
The usage was removed while refactoring/fixing in several JIRAs such as
SPARK-16714, SPARK-16735 and SPARK-16646
## How was this patch tested?
Existing tests.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/HyukjinKwon/spark SPARK-19446
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/16786.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 #16786
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commit c1a2bbb368f7ec1c019babfcd5ba189a6032b73f
Author: hyukjinkwon <[email protected]>
Date: 2017-02-03T12:33:50Z
Remove unused findTightestCommonType in TypeCoercion
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