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Ruslan Dautkhanov commented on SPARK-16026:
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[~ioana-delaney], (y)
> Cost-based Optimizer
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Ioana Delaney commented on SPARK-16026:
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[~Tagar], Our team is currently working on the support for
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Ruslan Dautkhanov commented on SPARK-16026:
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It would be great to resolve SPARK-15302 as a
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Zhenhua Wang commented on SPARK-16026:
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[~rxin] Yes, I'll spend more time on CBO from this saturday.
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Ron Hu commented on SPARK-16026:
Hi Reynold, I previously worked on filter cardinality estimation using
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Reynold Xin commented on SPARK-16026:
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[~ZenWzh] can we start working on operator cardinality
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Srinath commented on SPARK-16026:
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Thanks for the response:
1. You’re correct that the search space will
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Zhenhua Wang commented on SPARK-16026:
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1. It's a good point. I think it's worth a try, even without
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Ron Hu commented on SPARK-16026:
Hi Srinath, Thank you for your comments. Let me answer them one by one.
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Ron Hu commented on SPARK-16026:
Hi Srinath, Thank you for your comments. Let me answer them one by
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Srinath commented on SPARK-16026:
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I have a couple of comments/questions on the proposal.
Regarding the
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Ron Hu commented on SPARK-16026:
Design Specification of Spark Cost-Based Optimization is now posted.
>
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Ron Hu commented on SPARK-16026:
I will post a pdf version of the design spec soon.
> Cost-based
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Reynold Xin commented on SPARK-16026:
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Actually would be great to post.
Ron sent me a word document,
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Sean Owen commented on SPARK-16026:
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That's not OK in an Apache project. The discussion needs to at
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Reynold Xin commented on SPARK-16026:
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Ron it would be great to post this in public for more
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Ron Hu commented on SPARK-16026:
Sean, I wrote "Design Specification of Spark Cost-Based Optimization"
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Sean Owen commented on SPARK-16026:
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(Sorry I managed to mess up the title twice, typing on a phone)
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Reynold Xin commented on SPARK-16026:
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Note one implementation from Huawei is
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