[ https://issues.apache.org/jira/browse/DRILL-4256?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Dechang Gu closed DRILL-4256. ----------------------------- Verified by Rahul. > Performance regression in hive planning > --------------------------------------- > > Key: DRILL-4256 > URL: https://issues.apache.org/jira/browse/DRILL-4256 > Project: Apache Drill > Issue Type: Bug > Components: Functions - Hive, Query Planning & Optimization > Affects Versions: 1.5.0 > Reporter: Rahul Challapalli > Assignee: Venki Korukanti > Fix For: 1.5.0 > > Attachments: jstack.tgz > > > Commit # : 76f41e18207e3e3e987fef56ee7f1695dd6ddd7a > The fix for reading hive tables backed by hbase caused a performance > regression. The data set used in the below test has ~3700 partitions and the > filter in the query would ensure only 1 partition get selected. > {code} > Commit : 76f41e18207e3e3e987fef56ee7f1695dd6ddd7a > Query : explain plan for select count(*) from lineitem_partitioned where > `year`=2015 and `month`=1 and `day` =1; > Time : ~25 seconds > {code} > {code} > Commit : 1ea3d6c3f144614caf460648c1c27c6d0f5b06b8 > Query : explain plan for select count(*) from lineitem_partitioned where > `year`=2015 and `month`=1 and `day` =1; > Time : ~6.5 seconds > {code} > Since the data is large, I couldn't attach it here. Reach out to me if you > need additional information. -- This message was sent by Atlassian JIRA (v6.3.4#6332)