[ https://issues.apache.org/jira/browse/HIVE-19684?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ashutosh Chauhan updated HIVE-19684: ------------------------------------ Target Version/s: 3.1.0 Fix Version/s: (was: 3.0.0) > Hive stats optimizer wrongly uses stats against non native tables > ----------------------------------------------------------------- > > Key: HIVE-19684 > URL: https://issues.apache.org/jira/browse/HIVE-19684 > Project: Hive > Issue Type: Bug > Components: Druid integration, Physical Optimizer > Reporter: slim bouguerra > Assignee: slim bouguerra > Priority: Blocker > Attachments: HIVE-19684.2.patch, HIVE-19684.patch > > > Stats of non native tables are inaccurate, thus queries over non native > tables can not optimized by stats optimizer. > Take example of query > {code} > Explain select count(*) from (select `__time` from druid_test_table limit 1) > as src ; > {code} > the plan will be reduced to > {code} > POSTHOOK: query: explain extended select count(*) from (select `__time` from > druid_test_table limit 1) as src > POSTHOOK: type: QUERY > STAGE DEPENDENCIES: > Stage-0 is a root stage > STAGE PLANS: > Stage: Stage-0 > Fetch Operator > limit: 1 > Processor Tree: > ListSink > {code} -- This message was sent by Atlassian JIRA (v7.6.3#76005)