[Analytics Engine] CSE: evaluate a repeated aggregate sub-plan once instead of twice - #22818

[Analytics Engine] CSE: evaluate a repeated aggregate sub-plan once instead of twice#22818

LantaoJin wants to merge 7 commits into

opensearch-project:mainopensearch-project/OpenSearch:mainfrom

LantaoJin:feature/cse-subplan-reuseLantaoJin/OpenSearch:feature/cse-subplan-reuseCopy head branch name to clipboard