[GitHub] siddharthteotia commented on issue #1034: [CALCITE-2819] Add version of LoptOptimizeJoinRule that uses the first ordering it finds

2019-02-28 Thread GitBox
siddharthteotia commented on issue #1034: [CALCITE-2819] Add version of 
LoptOptimizeJoinRule that uses the first ordering it finds
URL: https://github.com/apache/calcite/pull/1034#issuecomment-468449888
 
 
   @vlsi ... we use this initially only to get some random ordering (not 
possibly the best ordering) to convert multi-join to join nodes.. There is 
probably no other way in Calcite to do that so added this unoptimized instance 
where we just return after getting the first ordering. So the test case also 
aims to verify if the result is the ordering by considering first join factor 
as the first factor.


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[GitHub] siddharthteotia commented on issue #1034: [CALCITE-2819] Add version of LoptOptimizeJoinRule that uses the first ordering it finds

2019-02-27 Thread GitBox
siddharthteotia commented on issue #1034: [CALCITE-2819] Add version of 
LoptOptimizeJoinRule that uses the first ordering it finds
URL: https://github.com/apache/calcite/pull/1034#issuecomment-468035971
 
 
   > @siddharthteotia , this PR adds extremely specific feature, and I don't 
see how the behavior is tested. Do you have a test that validates "only one"?
   > 
   > I think we could go with: "generate at most N permutations" or "spend no 
more than X milliseconds" rule parameters.
   > 
   > What do you think?
   
   @vlsi , let me revisit the unit test and see if it can be changed/improved. 
I am a little confused with "generate at most N permutation" part. Are you 
referring to some piece of code that I can leverage to test this?


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[GitHub] siddharthteotia commented on issue #1034: [CALCITE-2819] Add version of LoptOptimizeJoinRule that uses the first ordering it finds

2019-02-27 Thread GitBox
siddharthteotia commented on issue #1034: [CALCITE-2819] Add version of 
LoptOptimizeJoinRule that uses the first ordering it finds
URL: https://github.com/apache/calcite/pull/1034#issuecomment-468028636
 
 
   ping?
   
   cc @laurentgo , @vladimirdolzhenko 


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