[GitHub] spark issue #14452: [SPARK-16849][SQL][WIP] Improve subquery execution by de...

2016-09-19 Thread viirya
Github user viirya commented on the issue:

https://github.com/apache/spark/pull/14452
  
@davies Thanks for comment.

In our initial benchmark of the TPC-DS queries (totally 13) using CTE, this 
PR helps about half (6) of them, 5 queries are not affected, 2 queries are 
regressed. I might say it would help CTE queries at most cases according to the 
results.

I agree that 500+ LOC changes looks a bit big for this improvement. I would 
like to refactor and tailor part of the changes and break it down to small 
pieces for you to review. I wish I can reduce the LOC changes at the end.

I would like to run Q64 by disabling the push down, may I ask the purpose 
for it?




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[GitHub] spark issue #14452: [SPARK-16849][SQL][WIP] Improve subquery execution by de...

2016-09-19 Thread davies
Github user davies commented on the issue:

https://github.com/apache/spark/pull/14452
  
@viirya It's true that this PR could help the performance for Q64, but i'm 
not convinced that that case is common enough to worth more than 500+ LOC 
changes. Could you try run TPC-DS Q64 by disable some predicate push down (for 
example, disable InferFiltersFromConstraints)? 


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[GitHub] spark issue #14452: [SPARK-16849][SQL][WIP] Improve subquery execution by de...

2016-09-18 Thread viirya
Github user viirya commented on the issue:

https://github.com/apache/spark/pull/14452
  
@hvanhovell @davies I rethink this PR in recent days. The changes includes 
some hacky change and are too big to review. I would like to separate it to 
individual small PRs which can be reviewed separately.




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[GitHub] spark issue #14452: [SPARK-16849][SQL][WIP] Improve subquery execution by de...

2016-09-13 Thread AmplabJenkins
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[GitHub] spark issue #14452: [SPARK-16849][SQL][WIP] Improve subquery execution by de...

2016-09-13 Thread AmplabJenkins
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[GitHub] spark issue #14452: [SPARK-16849][SQL][WIP] Improve subquery execution by de...

2016-09-13 Thread SparkQA
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https://github.com/apache/spark/pull/14452
  
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 * This patch passes all tests.
 * This patch merges cleanly.
 * This patch adds no public classes.


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[GitHub] spark issue #14452: [SPARK-16849][SQL][WIP] Improve subquery execution by de...

2016-09-13 Thread SparkQA
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[GitHub] spark issue #14452: [SPARK-16849][SQL][WIP] Improve subquery execution by de...

2016-09-13 Thread viirya
Github user viirya commented on the issue:

https://github.com/apache/spark/pull/14452
  
retest this please.


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[GitHub] spark issue #14452: [SPARK-16849][SQL][WIP] Improve subquery execution by de...

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[GitHub] spark issue #14452: [SPARK-16849][SQL][WIP] Improve subquery execution by de...

2016-09-13 Thread SparkQA
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[GitHub] spark issue #14452: [SPARK-16849][SQL][WIP] Improve subquery execution by de...

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[GitHub] spark issue #14452: [SPARK-16849][SQL][WIP] Improve subquery execution by de...

2016-09-12 Thread SparkQA
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[GitHub] spark issue #14452: [SPARK-16849][SQL][WIP] Improve subquery execution by de...

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[GitHub] spark issue #14452: [SPARK-16849][SQL][WIP] Improve subquery execution by de...

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[GitHub] spark issue #14452: [SPARK-16849][SQL][WIP] Improve subquery execution by de...

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[GitHub] spark issue #14452: [SPARK-16849][SQL][WIP] Improve subquery execution by de...

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[GitHub] spark issue #14452: [SPARK-16849][SQL][WIP] Improve subquery execution by de...

2016-09-12 Thread viirya
Github user viirya commented on the issue:

https://github.com/apache/spark/pull/14452
  
retest this please.


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