Love the functionality to create filters on the Calgary database but it would be nice to be able to select the columns you wanted returned. There are times where you only want a couple columns but the input tool will return all columns creating a larger dataset then required. You can add a select right after the input but this is after the entire dataset has been loaded into memory. Combining the two would make the Calgary input tool behave more like a database then a standard "dumb" input source.