Wenzhe Zhou has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/15250 )

Change subject: IMPALA-6689: Speed up point lookup for Kudu primary key
......................................................................


Patch Set 2:

(6 comments)

http://gerrit.cloudera.org:8080/#/c/15250/2//COMMIT_MSG
Commit Message:

http://gerrit.cloudera.org:8080/#/c/15250/2//COMMIT_MSG@13
PS2, Line 13: set
> nit: sets
done


http://gerrit.cloudera.org:8080/#/c/15250/2/fe/src/main/java/org/apache/impala/planner/KuduScanNode.java
File fe/src/main/java/org/apache/impala/planner/KuduScanNode.java:

http://gerrit.cloudera.org:8080/#/c/15250/2/fe/src/main/java/org/apache/impala/planner/KuduScanNode.java@288
PS2, Line 288:     if (isPointLookupQuery_) {
             :       inputCardinality_ = cardinality_ = 1;
             :     } else {
> This looks correct with the exception of the case when the cardinality is 0
done


http://gerrit.cloudera.org:8080/#/c/15250/2/fe/src/main/java/org/apache/impala/planner/KuduScanNode.java@381
PS2, Line 381: c
> nit: capital C
done


http://gerrit.cloudera.org:8080/#/c/15250/2/fe/src/main/java/org/apache/impala/planner/KuduScanNode.java@394
PS2, Line 394:           if (rpcTable.getSchema().getColumn(colName).isKey())
> nit: it is a convention in Impala to add braces when an "if" + the statemen
done


http://gerrit.cloudera.org:8080/#/c/15250/2/fe/src/main/java/org/apache/impala/planner/KuduScanNode.java@400
PS2, Line 400:     }
> A precondition with getPrimaryKeyColumnCount()>=1 would be nice here
done


http://gerrit.cloudera.org:8080/#/c/15250/2/fe/src/main/java/org/apache/impala/planner/KuduScanNode.java@401
PS2, Line 401:     if (primaryKeyColInEquivalPred == 
rpcTable.getSchema().getPrimaryKeyColumnCount())
> same as line 394
done



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I4631cd4d1a528a1152b5cdcb268426f2ba1a0c08
Gerrit-Change-Number: 15250
Gerrit-PatchSet: 2
Gerrit-Owner: Wenzhe Zhou <[email protected]>
Gerrit-Reviewer: Anurag Mantripragada <[email protected]>
Gerrit-Reviewer: Csaba Ringhofer <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Quanlong Huang <[email protected]>
Gerrit-Reviewer: Thomas Tauber-Marshall <[email protected]>
Gerrit-Reviewer: Tim Armstrong <[email protected]>
Gerrit-Reviewer: Wenzhe Zhou <[email protected]>
Gerrit-Comment-Date: Fri, 21 Feb 2020 00:07:16 +0000
Gerrit-HasComments: Yes

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