> On July 11, 2019, 4 a.m., Jesús Camacho Rodríguez wrote:
> > ql/src/java/org/apache/hadoop/hive/ql/exec/vector/mapjoin/VectorMapJoinInnerBigOnlyGenerateResultOperator.java
> > Line 255 (original), 255 (patched)
> > <https://reviews.apache.org/r/71040/diff/1/?file=2154108#file2154108line255>
> >
> >     Can we update this comment since it is not only the big table? Feel 
> > free to add any more info to understand better what is going on.

I've removed the bigtable keyword...I don't think extending it will help.
I feel that redesigning/reducing the 3-4 mapping things to 1 would make it 
easier to undetstand this codes; and that would also avoid bugs like this.
Most importantly the part which puzzles together these mappings are hard to 
follow - and I think the problem arised from that cause.


> On July 11, 2019, 4 a.m., Jesús Camacho Rodríguez wrote:
> > ql/src/test/queries/clientpositive/hybridgrace_hashjoin_2.q
> > Line 10 (original), 9 (patched)
> > <https://reviews.apache.org/r/71040/diff/1/?file=2154109#file2154109line10>
> >
> >     Why is this disabled now? This is causing map join conversion to not 
> > being triggered below.

oh damn...I was making a final check that it's working correctly - looks like 
I've commited this...fixed; and all the other joins are mapjoins again


- Zoltan


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On July 9, 2019, 6:12 p.m., Zoltan Haindrich wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/71040/
> -----------------------------------------------------------
> 
> (Updated July 9, 2019, 6:12 p.m.)
> 
> 
> Review request for hive and Jesús Camacho Rodríguez.
> 
> 
> Bugs: HIVE-21923
>     https://issues.apache.org/jira/browse/HIVE-21923
> 
> 
> Repository: hive-git
> 
> 
> Description
> -------
> 
> HIVE-21923
> Vectorized MapJoin may miss results when only the join key is selected
> 
> 
> Diffs
> -----
> 
>   
> common/src/test/org/apache/hadoop/hive/common/format/datetime/package-info.java
>  70ee4266f45219fd81bf0d0df0a2c4380334e307 
>   
> ql/src/java/org/apache/hadoop/hive/ql/exec/vector/mapjoin/VectorMapJoinInnerBigOnlyGenerateResultOperator.java
>  35dddddb844f236f24d2f17f4a43d064c9ebaf8c 
>   ql/src/test/queries/clientpositive/hybridgrace_hashjoin_2.q 
> d989ca7dc883fa071cf5772f358c68bff78f659f 
>   ql/src/test/results/clientpositive/llap/correlationoptimizer4.q.out 
> 45a646c948ec8b72710a6b8a3949fbe0203dd68e 
>   ql/src/test/results/clientpositive/llap/hybridgrace_hashjoin_2.q.out 
> 2305f87e45bd65152a6c77ce04f7b8efad4724d7 
>   ql/src/test/results/clientpositive/spark/auto_join14.q.out 
> 0c80c13889d134abe82bde30c98300620b1fd432 
>   ql/src/test/results/clientpositive/spark/bucket_map_join_tez1.q.out 
> 4ee669fa7dd50e0373910030b35c8860383a3a70 
>   ql/src/test/results/clientpositive/tez/hybridgrace_hashjoin_2.q.out 
> e28b15044503ea4bb5bd12b7caed6b105f337efd 
> 
> 
> Diff: https://reviews.apache.org/r/71040/diff/1/
> 
> 
> Testing
> -------
> 
> 
> Thanks,
> 
> Zoltan Haindrich
> 
>

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