Panagiotis Garefalakis created HIVE-23730: ---------------------------------------------
Summary: Compiler support tracking TS keyColName for Probe MapJoin Key: HIVE-23730 URL: https://issues.apache.org/jira/browse/HIVE-23730 Project: Hive Issue Type: Sub-task Reporter: Panagiotis Garefalakis Assignee: Panagiotis Garefalakis TezCompiler needs to track the original TS key columnName used for MJ probedecode. Even thought we know the MJ keyCol at compile time, this could be generated by previous (parent) operators thus we dont always know the original TS column it maps to. To find the original columnMapping, we need to track the MJ keyCol through the operator pipeline. The tracking is done through the output column name to input expression Map of the operators. -- This message was sent by Atlassian Jira (v8.3.4#803005)