[ https://issues.apache.org/jira/browse/HIVE-19557?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Zoltan Haindrich updated HIVE-19557: ------------------------------------ Attachment: HIVE-19557.01.patch > stats: filters for dates are taking advantage of min/max values > --------------------------------------------------------------- > > Key: HIVE-19557 > URL: https://issues.apache.org/jira/browse/HIVE-19557 > Project: Hive > Issue Type: Bug > Components: Query Planning > Reporter: Zoltan Haindrich > Assignee: Zoltan Haindrich > Priority: Major > Attachments: HIVE-19557.01.patch > > > in StatsRulesProcFactory > [https://github.com/apache/hive/blob/ab189f54047bbf6beeeaf8d0dcfd5fbe92e465fb/ql/src/java/org/apache/hadoop/hive/ql/optimizer/stats/annotation/StatsRulesProcFactory.java#L754|dates > are assumed to be an integer]; however this is currently not true - and the > resulting exception is handled as a default case... for N/3 > {code} > set hive.explain.user=true; > create table d1(d date); > -- tblproperties('transactional'='false'); > insert into d1 values > ('2010-10-01'), > ('2010-10-02'), > ('2010-10-03'), > ('2010-10-04'), > ('2010-10-05'), > ('2010-10-06'), > ('2010-10-07'), > ('2010-10-08'), > ('2010-10-09'), > ('2010-10-10'); > analyze table d1 compute statistics for columns; > desc formatted d1; > desc formatted d1 d; > explain > select 'stats: FIL ~0 read',count(1) from d1 where d < '2010-03-01'; > explain > select 'stats: FIL estimate some read',count(1) from d1 where d < > '2010-10-03'; > explain > select 'stats: FIL estimate all read',count(1) from d1 where d < '2010-11-03'; > {code} -- This message was sent by Atlassian JIRA (v7.6.3#76005)