execute conversion query on self.match_mql stage

Author: Jibola

django_mongodb_backend/query.py

@@ -11,6 +11,8 @@
 from django.db.models.sql.where import AND, OR, XOR, ExtraWhere, NothingNode, WhereNode
 from pymongo.errors import BulkWriteError, DuplicateKeyError, PyMongoError
 
+from django_mongodb_backend.query_conversion.query_optimizer import QueryOptimizer
+
 
 def wrap_database_errors(func):
     @wraps(func)
@@ -87,7 +89,7 @@ def get_pipeline(self):
         for query in self.subqueries or ():
             pipeline.extend(query.get_pipeline())
         if self.match_mql:
-            pipeline.append({"$match": self.match_mql})
+            pipeline.append(QueryOptimizer().optimize(self.match_mql))
         if self.aggregation_pipeline:
             pipeline.extend(self.aggregation_pipeline)
         if self.project_fields: