[Backport 2.19-dev] Enable pushdown optimization for filtered aggregation#4238

penghuo merged 2 commits intoopensearch-project:2.19-devopensearch-project/sql:2.19-devfrom

dai-chen:backport-count-eval-function-pushdowndai-chen/sql-1:backport-count-eval-function-pushdownCopy head branch name to clipboard