v.19.14Improvement
Split Expressionanalyzer.appendjoin()
SplitExpressionAnalyzer.appendJoin(). Prepare a place inExpressionAnalyzerforMergeJoin. #6524 (Artem Zuikov)
Why it matters
This change restructures theExpressionAnalyzer to create a dedicated place for supporting MergeJoin, a join algorithm that can optimize join operations by leveraging sorted inputs. It sets the foundation for improved join performance and scalability.How to use it
This is an internal refactor and preparatory step. Users will benefit from the upcomingMergeJoin feature once fully implemented and exposed, but no immediate action or configuration is needed in this update.