Sorabh Hamirwasia created DRILL-6503: ----------------------------------------
Summary: Minor Performance fixes in lateral Key: DRILL-6503 URL: https://issues.apache.org/jira/browse/DRILL-6503 Project: Apache Drill Issue Type: Improvement Components: Execution - Relational Operators Affects Versions: 1.14.0 Reporter: Sorabh Hamirwasia Assignee: Sorabh Hamirwasia Fix For: 1.14.0 In LateralJoin currently the copying of data from left and right inputs is not very efficient. Basically for the number of rows seen in right side (let say n), it does copy row by row across all vectors in left and right inputs. Whereas if it copies each vectors (n times) and then move to next vector that can help in improving the performance. Also today MemoryManager::update can be called in lateral multiple times for left and right incoming. These calls are found to be very expensive hence make sure it's called only once for every new incoming from both left and right. -- This message was sent by Atlassian JIRA (v7.6.3#76005)