Wenzhe Zhou has uploaded this change for review. ( http://gerrit.cloudera.org:8080/21281
Change subject: WIP IMPALA-12983 (Part 1): Push down simple limit to remote database ...................................................................... WIP IMPALA-12983 (Part 1): Push down simple limit to remote database This patch pushes down the simple limit on DataSourceScanNode to remote database. Simple limit means the scan node does not have scan conjunct. Testing: - TODO: Add unit-test to verify RowsRead of DataSourceNode in query profiles, which are the rows read from JDBC driver. - Passed end-to-end unit tests for external JDBC tables Change-Id: I139d34cc3b70db14d5f45266d2cbd586a53c8382 --- M be/src/exec/data-source-scan-node.cc M common/thrift/PlanNodes.thrift M fe/src/main/java/org/apache/impala/planner/DataSourceScanNode.java 3 files changed, 9 insertions(+), 0 deletions(-) git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/81/21281/1 -- To view, visit http://gerrit.cloudera.org:8080/21281 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: newchange Gerrit-Change-Id: I139d34cc3b70db14d5f45266d2cbd586a53c8382 Gerrit-Change-Number: 21281 Gerrit-PatchSet: 1 Gerrit-Owner: Wenzhe Zhou <[email protected]>
