Congratulations zhenhua for this great achievement.

On Mon, 2 Apr 2018 at 11:05 AM, Denny Lee <> wrote:
Awesome - congrats Zhenhua! 

On Sun, Apr 1, 2018 at 10:33 PM 叶先进 <> wrote:
Big congs.

> On Apr 2, 2018, at 1:28 PM, Wenchen Fan <> wrote:
> Hi all,
> The Spark PMC recently added Zhenhua Wang as a committer on the project. Zhenhua is the major contributor of the CBO project, and has been contributing across several areas of Spark for a while, focusing especially on analyzer, optimizer in Spark SQL. Please join me in welcoming Zhenhua!
> Wenchen

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