Minor: Encapsulate `return_type` and `signature` in `AggregateFunction` and `WindowFunction`#6748

Merged

alamb merged 3 commits intoapache:mainfrom alamb:alamb/encapsulate_aggregate_functions

Jul 2, 2023

+305-247

Commits on Jun 22, 2023

Minor: Encapsulate Aggregate and Window function signatures
alamb
committed

Commits on Jun 27, 2023

Merge remote-tracking branch 'apache/main' into alamb/encapsulate_aggregate_functions
alamb
committed

Commits on Jul 2, 2023

Merge remote-tracking branch 'apache/main' into alamb/encapsulate_aggregate_functions
alamb
committed