Michael Ho has uploaded a new change for review. http://gerrit.cloudera.org:8080/4759
Change subject: IMPALA-4269: Codegen merging exchange node ...................................................................... IMPALA-4269: Codegen merging exchange node This change enables codegen for the tuple row comparator used in merging-exchange node. With this change, merging-exchange operator improves by 40% and 50% respectively for primitive_orderby_bigint and primitive_orderby_all on TPCH-300, speeding up the query by 6% and 11% respectively. Change-Id: I944b8d52ea63ede58e4dc6fbe6e6953756394d41 --- M be/src/exec/exchange-node.cc M be/src/exec/exchange-node.h 2 files changed, 13 insertions(+), 0 deletions(-) git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/59/4759/1 -- To view, visit http://gerrit.cloudera.org:8080/4759 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-MessageType: newchange Gerrit-Change-Id: I944b8d52ea63ede58e4dc6fbe6e6953756394d41 Gerrit-PatchSet: 1 Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-Owner: Michael Ho <k...@cloudera.com>
