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ql/src/java/org/apache/hadoop/hive/ql/optimizer/ConvertJoinMapJoin.java
Lines 381 (patched)
<https://reviews.apache.org/r/66069/#comment279799>

    Can you please add a comment here that what we are doing here and why?



ql/src/java/org/apache/hadoop/hive/ql/optimizer/stats/annotation/StatsRulesProcFactory.java
Line 2501 (original), 2507 (patched)
<https://reviews.apache.org/r/66069/#comment279803>

    I think lookup(op) is better than lookup(treeSig) since that way we can 
delay computation of signature. e.g, if I configure to run with 
EmptyStatsSource (to turn off this feature), this computation will be avoided.



ql/src/java/org/apache/hadoop/hive/ql/plan/mapper/PlanMapper.java
Line 43 (original), 48 (patched)
<https://reviews.apache.org/r/66069/#comment279801>

    Add comments about this class.



ql/src/java/org/apache/hadoop/hive/ql/plan/mapper/PlanMapper.java
Line 63 (original), 71 (patched)
<https://reviews.apache.org/r/66069/#comment279802>

    Comments.


- Ashutosh Chauhan


On March 19, 2018, 9:59 p.m., Zoltan Haindrich wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/66069/
> -----------------------------------------------------------
> 
> (Updated March 19, 2018, 9:59 p.m.)
> 
> 
> Review request for hive and Ashutosh Chauhan.
> 
> 
> Bugs: HIVE-18926
>     https://issues.apache.org/jira/browse/HIVE-18926
> 
> 
> Repository: hive-git
> 
> 
> Description
> -------
> 
> * match operators based on opsigs
> * always calc operator sigs
> 
> 
> Diffs
> -----
> 
>   ql/src/java/org/apache/hadoop/hive/ql/optimizer/ConvertJoinMapJoin.java 
> a235f3fbf4 
>   ql/src/java/org/apache/hadoop/hive/ql/optimizer/signature/OpSignature.java 
> 90b2fd3dad 
>   
> ql/src/java/org/apache/hadoop/hive/ql/optimizer/signature/OpTreeSignature.java
>  c6d1a6aaca 
>   ql/src/java/org/apache/hadoop/hive/ql/optimizer/signature/Signature.java 
> c228a8e4f5 
>   
> ql/src/java/org/apache/hadoop/hive/ql/optimizer/signature/SignatureUtils.java 
> 2269322b69 
>   
> ql/src/java/org/apache/hadoop/hive/ql/optimizer/stats/annotation/StatsRulesProcFactory.java
>  22b052cd07 
>   ql/src/java/org/apache/hadoop/hive/ql/plan/CommonMergeJoinDesc.java 
> 5a81add706 
>   ql/src/java/org/apache/hadoop/hive/ql/plan/JoinCondDesc.java ea22131c56 
>   ql/src/java/org/apache/hadoop/hive/ql/plan/LateralViewJoinDesc.java 
> 85a4683491 
>   ql/src/java/org/apache/hadoop/hive/ql/plan/MapJoinDesc.java 91ea159d52 
>   ql/src/java/org/apache/hadoop/hive/ql/plan/ReduceSinkDesc.java f2955af25e 
>   ql/src/java/org/apache/hadoop/hive/ql/plan/mapper/PlanMapper.java 
> 36d7e589a8 
>   ql/src/java/org/apache/hadoop/hive/ql/plan/mapper/PlanMapperProcess.java 
> 424dd7956b 
>   ql/src/java/org/apache/hadoop/hive/ql/plan/mapper/RuntimeStatsSource.java 
> 21a0678153 
>   
> ql/src/java/org/apache/hadoop/hive/ql/plan/mapper/SimpleRuntimeStatsSource.java
>  6f340b8450 
>   ql/src/java/org/apache/hadoop/hive/ql/reexec/ReExecDriver.java 93031712dc 
>   
> ql/src/test/org/apache/hadoop/hive/ql/optimizer/signature/TestOperatorSignature.java
>  8c899e7fef 
>   ql/src/test/org/apache/hadoop/hive/ql/plan/mapping/TestOperatorCmp.java 
> cfb0ca38b2 
>   ql/src/test/results/clientpositive/llap/retry_failure_stat_changes.q.out 
> 9b58ce0e5d 
> 
> 
> Diff: https://reviews.apache.org/r/66069/diff/2/
> 
> 
> Testing
> -------
> 
> 
> Thanks,
> 
> Zoltan Haindrich
> 
>

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