Definition Queries on map layers in Pro don't appear to allow spatial queries. So I thought I'd try using a Query Layer instead. These require the query be written in SQL. But I'm not finding any example of spatial queries in SQL reference for query expressions used in ArcGIS—ArcGIS Pro | Documentation So I'm thinking maybe Query Layers don't support spatial queries either.
Is that the case? And if so, anyone know the best way to create a map layer that conforms to a spatial query? It's a simple query - points in the layer need to be inside a polygon in another layer.