GitHub user 10110346 opened a pull request:
https://github.com/apache/spark/pull/18156
[SPARK-20933][SQL]when the input parameter is float typeï¼the âround â
or âbroundâ function can't work well
## What changes were proposed in this pull request?
spark-sql>select round(cast(3.1415 as float), 3);
spark-sql>3.141
For this case, the result we expected is 3.142
spark-sql>select bround(cast(3.1415 as float), 3);
spark-sql>3.141
For this case, the result we expected is 3.142
## How was this patch tested?
add unit test
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/10110346/spark wip-lx-0526
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/18156.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 #18156
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commit ea2a8ce9fa8f8f70847c08d732a0397e4ca473e2
Author: liuxian <[email protected]>
Date: 2017-05-31T06:19:39Z
when the input parameter is float typeï¼the âround â and âbroundâ
function can't work well
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