[ https://issues.apache.org/jira/browse/HIVE-18279?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Zoltan Haindrich updated HIVE-18279: ------------------------------------ Resolution: Invalid Status: Resolved (was: Patch Available) as my earlier comment...I don't think this is not an incorrect condition. please submit a usecase which is producing incorrect results because of this > Incorrect condition in StatsOpimizer > ------------------------------------ > > Key: HIVE-18279 > URL: https://issues.apache.org/jira/browse/HIVE-18279 > Project: Hive > Issue Type: Bug > Components: Statistics > Reporter: Oleksiy Sayankin > Assignee: Oleksiy Sayankin > Priority: Major > Fix For: 3.2.0 > > Attachments: HIVE-18279.1.patch > > > At the moment {{StatsOpimizer}} has code > {code} > if (rowCnt == null) { > // if rowCnt < 1 than its either empty table or table on which > stats are not > // computed We assume the worse and don't attempt to optimize. > Logger.debug("Table doesn't have up to date stats " + > tbl.getTableName()); > rowCnt = null; > } > {code} > in method {{private Long getRowCnt()}}. Condition > {code} > if (rowCnt == null) { > {code} > should be changed to > {code} > if (rowCnt == null || rowCnt == 0) { > {code} > because 0 value also means that table stats may not be computed. -- This message was sent by Atlassian JIRA (v7.6.3#76005)