Qifan Chen has uploaded this change for review. ( http://gerrit.cloudera.org:8080/17635
Change subject: [WIP] IMPALA-10763: Min/max filters should be enabled on Z-order sorted columns ...................................................................... [WIP] IMPALA-10763: Min/max filters should be enabled on Z-order sorted columns This patch enables min/max filtering on Z-order sorted by columns by default. Since the column stats for a row group or a page is computed from the column valuess stored in the row group or the page, the current infrastructure for min/max filtering works for the Z-order out of box. The fact that these column valuess are ordered by Z-order is orthogonal to the work of min/max filtering. Testing [TBD] core-test Change-Id: I2a528ffbd0e333721ef38b4be7d4ddcdbf188adf --- M fe/src/main/java/org/apache/impala/planner/HdfsScanNode.java 1 file changed, 12 insertions(+), 5 deletions(-) git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/35/17635/1 -- To view, visit http://gerrit.cloudera.org:8080/17635 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: newchange Gerrit-Change-Id: I2a528ffbd0e333721ef38b4be7d4ddcdbf188adf Gerrit-Change-Number: 17635 Gerrit-PatchSet: 1 Gerrit-Owner: Qifan Chen <[email protected]>
