[ https://issues.apache.org/jira/browse/HIVE-18361?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jesus Camacho Rodriguez reassigned HIVE-18361: ---------------------------------------------- > Extend shared work optimizer to reuse computation beyond work boundaries > ------------------------------------------------------------------------ > > Key: HIVE-18361 > URL: https://issues.apache.org/jira/browse/HIVE-18361 > Project: Hive > Issue Type: New Feature > Components: Physical Optimizer > Affects Versions: 3.0.0 > Reporter: Jesus Camacho Rodriguez > Assignee: Jesus Camacho Rodriguez > Labels: TODOC3.0 > > Follow-up of the work in HIVE-16867. > HIVE-16867 introduced an optimization that identifies scans on input tables > that can be merged and reuses the computation that is done in the work > containing those scans. In particular, we traverse both parts of the plan > upstream and reuse the operators if possible. > Currently, the optimizer will not go beyond the output edge(s) of that work. > This extension removes that limitation. -- This message was sent by Atlassian JIRA (v6.4.14#64029)