Quanlong Huang has uploaded a new patch set (#4) to the change originally created by Norbert Luksa. ( http://gerrit.cloudera.org:8080/15403 )
Change subject: IMPALA-6505: Min-Max predicate push down in ORC scanner ...................................................................... IMPALA-6505: Min-Max predicate push down in ORC scanner This commit implements min/max predicate pushdown for the ORC scanner leveraging on the external ORC library's search arguments. We build the search arguments when we open the scanner as we need not to modify them later. Also added a query option orc_read_statistics. If the option is set to true (it is by default) predicate pushdown will take effect, otherwise it will be skipped. Tests: - Run scanner tests on ORC files. - Run TPCH benchmark, here is no improvement, nor regression. On the other hand, certain selective queries gained significant speed-up. Change-Id: I136622413db21e0941d238ab6aeea901a6464845 --- M be/src/exec/hdfs-orc-scanner.cc M be/src/exec/hdfs-orc-scanner.h M be/src/exec/orc-metadata-utils.h M be/src/exprs/scalar-expr.h M be/src/service/query-options.cc M be/src/service/query-options.h M bin/impala-config.sh M common/thrift/ImpalaService.thrift M common/thrift/Query.thrift M fe/src/main/java/org/apache/impala/planner/HdfsScanNode.java 10 files changed, 247 insertions(+), 3 deletions(-) git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/03/15403/4 -- To view, visit http://gerrit.cloudera.org:8080/15403 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: newpatchset Gerrit-Change-Id: I136622413db21e0941d238ab6aeea901a6464845 Gerrit-Change-Number: 15403 Gerrit-PatchSet: 4 Gerrit-Owner: Norbert Luksa <norbert.lu...@cloudera.com> Gerrit-Reviewer: Anonymous Coward (520) Gerrit-Reviewer: Csaba Ringhofer <csringho...@cloudera.com> Gerrit-Reviewer: Impala Public Jenkins <impala-public-jenk...@cloudera.com> Gerrit-Reviewer: Norbert Luksa <norbert.lu...@cloudera.com> Gerrit-Reviewer: Qifan Chen <qc...@cloudera.com> Gerrit-Reviewer: Quanlong Huang <huangquanl...@gmail.com> Gerrit-Reviewer: Zoltan Borok-Nagy <borokna...@cloudera.com>
