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From "@Sanjiv Singh" <sanjiv.is...@gmail.com>
Subject Re: hive cbo calciteplanner
Date Tue, 23 Jun 2015 05:01:57 GMT
+ Dev

Regards
Sanjiv Singh
Mob :  +091 9990-447-339

On Wed, Jun 17, 2015 at 6:42 AM, wangzhenhua (G) <wangzhenhua@huawei.com>
wrote:

>  Hi all,
>
>  I'm reading the source code of Hive cbo (CalcaitePlanner), but I find it
> hard to follow.
> Listed below are some of the questions:
> 1. What's the relationship between HepPlanner and HiveVolcanoPlanner?
> 2. I don't have a clue about these concepts: clusters, traitDef and
> collectGarbage().
>
>  Thanks for any help.
>
>  ------------------------------
>  best regards,
> -zhenhua
>

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