Alex Behm has posted comments on this change.

Change subject: IMPALA-5188: Add slot sorting in TupleDescriptor::LayoutEquals()
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Patch Set 2: Code-Review+1

(3 comments)

http://gerrit.cloudera.org:8080/#/c/6610/2/be/src/runtime/descriptors.cc
File be/src/runtime/descriptors.cc:

Line 347:   vector<SlotDescriptor*> slots = this->slots();
can remove this->


Line 353:   // slots on 'slot_idx'. We define a struct that wraps the 
comparison function.
Can remove the last sentence (obvious from code)


http://gerrit.cloudera.org:8080/#/c/6610/2/testdata/workloads/functional-query/queries/QueryTest/union.test
File testdata/workloads/functional-query/queries/QueryTest/union.test:

Line 1125: # IMPALA-5188: The slot descriptors might be ordered differently for 
the operands and the
> Several queries were already added as part of the union passthrough patch (
This is a very specific bug. Imo, we should check in the min repro of a bug, 
and not necessarily the original query that found it. Of course, we need to be 
sufficiently confident that the simplified query covers the same issue, in 
particular, we should manually test that the original query is fixed by this 
patch.


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Gerrit-MessageType: comment
Gerrit-Change-Id: I426ad244678dbfe517262dfb7bbf4adc0247a35e
Gerrit-PatchSet: 2
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Taras Bobrovytsky <[email protected]>
Gerrit-Reviewer: Alex Behm <[email protected]>
Gerrit-Reviewer: Michael Brown <[email protected]>
Gerrit-Reviewer: Taras Bobrovytsky <[email protected]>
Gerrit-HasComments: Yes

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