[ https://issues.apache.org/jira/browse/HIVE-6439?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13902860#comment-13902860 ]
Hive QA commented on HIVE-6439: ------------------------------- {color:green}Overall{color}: +1 all checks pass Here are the results of testing the latest attachment: https://issues.apache.org/jira/secure/attachment/12629280/HIVE-6439.2.patch {color:green}SUCCESS:{color} +1 5120 tests passed Test results: http://bigtop01.cloudera.org:8080/job/PreCommit-HIVE-Build/1348/testReport Console output: http://bigtop01.cloudera.org:8080/job/PreCommit-HIVE-Build/1348/console Messages: {noformat} Executing org.apache.hive.ptest.execution.PrepPhase Executing org.apache.hive.ptest.execution.ExecutionPhase Executing org.apache.hive.ptest.execution.ReportingPhase {noformat} This message is automatically generated. ATTACHMENT ID: 12629280 > Introduce CBO step in Semantic Analyzer > --------------------------------------- > > Key: HIVE-6439 > URL: https://issues.apache.org/jira/browse/HIVE-6439 > Project: Hive > Issue Type: Sub-task > Reporter: Harish Butani > Assignee: Harish Butani > Attachments: HIVE-6439.1.patch, HIVE-6439.2.patch > > > This patch introduces CBO step in SemanticAnalyzer. For now the > CostBasedOptimizer is an empty shell. > The contract between SemAly and CBO is: > - CBO step is controlled by the 'hive.enable.cbo.flag'. > - When true Hive SemAly will hand CBO a Hive Operator tree (with operators > annotated with stats). If it can CBO will return a better plan in Hive AST > form. -- This message was sent by Atlassian JIRA (v6.1.5#6160)