Xikui Wang has posted comments on this change.

Change subject: [NO-ISSUE][COMP] Miscellaneous Fixes in Compiler
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Patch Set 1:

(3 comments)

https://asterix-gerrit.ics.uci.edu/#/c/2858/1/hyracks-fullstack/algebricks/algebricks-common/src/main/java/org/apache/hyracks/algebricks/common/constraints/AlgebricksAbsolutePartitionConstraint.java
File 
hyracks-fullstack/algebricks/algebricks-common/src/main/java/org/apache/hyracks/algebricks/common/constraints/AlgebricksAbsolutePartitionConstraint.java:

Line 31:         Arrays.sort(this.locations);
> Good catch. Can you extract it into a separate change? I'll approve it righ
This one is submitted.


https://asterix-gerrit.ics.uci.edu/#/c/2858/1/hyracks-fullstack/algebricks/algebricks-core/src/main/java/org/apache/hyracks/algebricks/core/algebra/operators/logical/AggregateOperator.java
File 
hyracks-fullstack/algebricks/algebricks-core/src/main/java/org/apache/hyracks/algebricks/core/algebra/operators/logical/AggregateOperator.java:

Line 103:         IVariableTypeEnvironment env2 = 
this.computeInputTypeEnvironment(ctx);
> how is this different? aggregate operator only has one input, so the input'
I was having some type inference issue with this one, and I changed this. Sadly 
I didn't save the query that I used. If you feel this is not necessary, we 
could skip this one.


https://asterix-gerrit.ics.uci.edu/#/c/2858/1/hyracks-fullstack/algebricks/algebricks-rewriter/src/main/java/org/apache/hyracks/algebricks/rewriter/rules/AbstractIntroduceGroupByCombinerRule.java
File 
hyracks-fullstack/algebricks/algebricks-rewriter/src/main/java/org/apache/hyracks/algebricks/rewriter/rules/AbstractIntroduceGroupByCombinerRule.java:

Line 91:                 newGbyLiveVars.add(usedDecorVars.get(0));
> do you have a testcase that was fixed by this? Can you include it into this
These bug fixes are separated from one of the other branches that I'm working 
on, thus I don't have test cases for them. :( 
For this one, the problem that I had is there is a type inference issue in one 
of the group query that I have. I found that the decoration variables are 
replicated multiple times due to this. The replicated ones, the later copies, 
caused the issue. Since we are carrying those variables anyway, I think copying 
duplicated ones are not necessary. The newly assigned ones are not used 
anyway...
Btw, there is one more issue which i think was tricker so I saved the query. 
Here is the link: https://issues.apache.org/jira/browse/ASTERIXDB-2436


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Gerrit-MessageType: comment
Gerrit-Change-Id: Ibfc9459d0ccfc257e2c1b15f32d2697dcfbfcf42
Gerrit-PatchSet: 1
Gerrit-Project: asterixdb
Gerrit-Branch: master
Gerrit-Owner: Xikui Wang <[email protected]>
Gerrit-Reviewer: Anon. E. Moose #1000171
Gerrit-Reviewer: Dmitry Lychagin <[email protected]>
Gerrit-Reviewer: Jenkins <[email protected]>
Gerrit-Reviewer: Xikui Wang <[email protected]>
Gerrit-HasComments: Yes

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