Dan Hecht has posted comments on this change.

Change subject: IMPALA-3168: replace HashTable parameters with constants
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Patch Set 3:

(4 comments)

http://gerrit.cloudera.org:8080/#/c/3088/3/be/src/codegen/llvm-codegen.h
File be/src/codegen/llvm-codegen.h:

Line 267:       const std::string& target_name);
should we make this private and just ensure we have the interfaces needed to do 
the translation for C types to IR?  That seems a bit easier for the callsites 
to get the types write (just make sure C types for prototype and constant 
match).


http://gerrit.cloudera.org:8080/#/c/3088/3/be/src/exec/hash-table.cc
File be/src/exec/hash-table.cc:

Line 91: num_build_tuples_(num_build_tuples),
rather than saving this, which we only need for codegen, I think it's slightly 
better to just pass it to codegen like you already do with stores_duplicates.  
less redundant state in our objects is better.


http://gerrit.cloudera.org:8080/#/c/3088/3/be/src/exec/hash-table.h
File be/src/exec/hash-table.h:

Line 707:     friend class PartitionedAggregationNode;
why is this needed?


http://gerrit.cloudera.org:8080/#/c/3088/3/be/src/exec/hash-table.inline.h
File be/src/exec/hash-table.inline.h:

Line 185:       }
double check that a caller wasn't relying on this function always setting *node.


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Gerrit-MessageType: comment
Gerrit-Change-Id: I483a19662c90ca54bc21d60fd6ba97dbed93eaef
Gerrit-PatchSet: 3
Gerrit-Project: Impala
Gerrit-Branch: cdh5-trunk
Gerrit-Owner: Tim Armstrong <[email protected]>
Gerrit-Reviewer: Dan Hecht <[email protected]>
Gerrit-Reviewer: Michael Ho
Gerrit-Reviewer: Tim Armstrong <[email protected]>
Gerrit-HasComments: Yes

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