Michael Ho has posted comments on this change. Change subject: IMPALA-4397,IMPALA-3259: reduce codegen time and memory ......................................................................
Patch Set 4: (1 comment) http://gerrit.cloudera.org:8080/#/c/4956/4/fe/src/main/java/org/apache/impala/planner/DistributedPlanner.java File fe/src/main/java/org/apache/impala/planner/DistributedPlanner.java: PS4, Line 823: if (!hasGrouping) mergeAggNode.setDisableCodegen(true); A high level question: is there a reason why this decision cannot be made in PartitionedAggregationNode::Codegen() ? I suppose there is way for an Agg node to know whether it's a merging Agg node, right ? -- To view, visit http://gerrit.cloudera.org:8080/4956 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-MessageType: comment Gerrit-Change-Id: Id10015b49da182cb181a653ac8464b4a18b71091 Gerrit-PatchSet: 4 Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-Owner: Tim Armstrong <[email protected]> Gerrit-Reviewer: Michael Ho <[email protected]> Gerrit-HasComments: Yes
