Qifan Chen has uploaded this change for review. ( http://gerrit.cloudera.org:8080/17075
Change subject: [WIP] IMPALA-10494: Making use of the min/max column stats to improve min/max filters ...................................................................... [WIP] IMPALA-10494: Making use of the min/max column stats to improve min/max filters This patch adds the functionality to compute the minimal and the maximal value for a column during column statistics computation and to store the stats in HMS. These two new stats are used by the back end to discard min/max filters whose coverage are too close to the actual range. Change-Id: I08581b44419bb8da5940cbf98502132acd1c86df --- M be/src/exec/catalog-op-executor.cc M be/src/exec/incr-stats-util.cc M be/src/exec/incr-stats-util.h M be/src/service/hs2-util.cc M be/src/service/hs2-util.h M common/thrift/CatalogObjects.thrift M fe/src/main/java/org/apache/impala/analysis/ComputeStatsStmt.java M fe/src/main/java/org/apache/impala/catalog/ColumnStats.java M fe/src/main/java/org/apache/impala/service/CatalogOpExecutor.java M fe/src/main/java/org/apache/impala/service/Frontend.java 10 files changed, 391 insertions(+), 20 deletions(-) git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/75/17075/2 -- To view, visit http://gerrit.cloudera.org:8080/17075 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: newchange Gerrit-Change-Id: I08581b44419bb8da5940cbf98502132acd1c86df Gerrit-Change-Number: 17075 Gerrit-PatchSet: 2 Gerrit-Owner: Qifan Chen <[email protected]>
