Ballista does not support MIN/MAX aggregate functions

[andygrove]

Describe the bug

Error: DataFusionError(Execution("Job Y68pyLp failed: status: Internal, message: \"Could not save stage plan: Not implemented: Aggregate function not supported: Min { name: \\\"MIN(fare_amount)\\\", data_type: Float64, nullable: true, expr: Column { name: \\\"fare_amount\\\", index: 1 } }\", details: [], metadata: MetadataMap { headers: {} }"))

To Reproduce
Run a query with min/max.