[ https://issues.apache.org/jira/browse/HIVE-16746?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Rajesh Balamohan reassigned HIVE-16746: --------------------------------------- Assignee: Rajesh Balamohan > Reduce number of index lookups for same table in IndexWhereTaskDispatcher > ------------------------------------------------------------------------- > > Key: HIVE-16746 > URL: https://issues.apache.org/jira/browse/HIVE-16746 > Project: Hive > Issue Type: Bug > Reporter: Rajesh Balamohan > Assignee: Rajesh Balamohan > Priority: Minor > Attachments: HIVE-16746.1.patch > > > {{IndexWhereTaskDispatcher}} is used when > {{hive.optimize.index.filter=true}}. It lists all indices for the table and > depending on the query complexity, this ends up being in the hotpath. For > e.g, Q14 explain plan takes 180-200 seconds and this index querying multiple > times for same tables take up 30-40 seconds. This function was invoked around > 24000 times for same set of tables. -- This message was sent by Atlassian JIRA (v6.3.15#6346)