fix import

Author: fcostaoliveira

engine/clients/client_factory.py

@@ -25,10 +25,13 @@ def _import_engine_classes(engine_name: str) -> Dict[str, Type]:
     if engine_name in _engine_classes:
         return _engine_classes[engine_name]
 
-    # Handle special case for vectorsets which uses redis prefix
+    # Handle special cases for engine naming
     if engine_name == "vectorsets":
         module_name = f"engine.clients.vectorsets"
         class_prefix = "RedisVset"
+    elif engine_name == "pgvector":
+        module_name = f"engine.clients.pgvector"
+        class_prefix = "PgVector"
     else:
         module_name = f"engine.clients.{engine_name}"
         # Convert first letter to uppercase for class name