Make DDF names in target_name match expectations in opsim output

schedview/collect/opsim.py

@@ -211,7 +211,7 @@ def read_ddf_visits(
     visits : `pandas.DataFrame`
         The visits and their parameters.
     """
-    ddf_field_names = tuple(ddf_locations().keys())
+    ddf_field_names = [f"DD:{field_name}" for field_name in ddf_locations().keys()]
     # Note that this where clause is hard-coded for target_name (v4+)
     # but other columns in query will be backwards-compatible.
     constraint = f"target_name IN {tuple(field_name for field_name in ddf_field_names)}"