Fix milvus compatible check error

lightrag/kg/milvus_impl.py

@@ -444,7 +444,18 @@ class MilvusVectorDBStorage(BaseVectorStorage):
         for field in collection_info.get("fields", []):
             if field.get("name") == "vector":
                 field_type = field.get("type")
-                if field_type in ["FloatVector", "FLOAT_VECTOR"]:
+
+                # Extract type name from DataType enum or string
+                type_name = None
+                if hasattr(field_type, "name"):
+                    type_name = field_type.name
+                elif isinstance(field_type, str):
+                    type_name = field_type
+                else:
+                    type_name = str(field_type)
+
+                # Check if it's a vector type (supports multiple formats)
+                if type_name in ["FloatVector", "FLOAT_VECTOR"]:
                     existing_dimension = field.get("params", {}).get("dim")
 
                     if existing_dimension != current_dimension:
@@ -531,7 +542,9 @@ class MilvusVectorDBStorage(BaseVectorStorage):
             # 2. Check schema compatibility
             self._check_schema_compatibility(collection_info)
 
-            logger.info(f"Collection {self.namespace} compatibility validation passed")
+            logger.info(
+                f"VectorDB Collection '{self.namespace}' compatibility validation passed"
+            )
 
         except Exception as e:
             logger.error(
@@ -571,16 +584,13 @@ class MilvusVectorDBStorage(BaseVectorStorage):
             # Check if our specific collection exists
             collection_exists = self._client.has_collection(self.namespace)
             logger.info(
-                f"Collection '{self.namespace}' exists check: {collection_exists}"
+                f"VectorDB collection '{self.namespace}' exists check: {collection_exists}"
             )
 
             if collection_exists:
                 # Double-check by trying to describe the collection
                 try:
                     self._client.describe_collection(self.namespace)
-                    logger.info(
-                        f"Collection '{self.namespace}' confirmed to exist, validating compatibility..."
-                    )
                     self._validate_collection_compatibility()
                     # Ensure the collection is loaded after validation
                     self._ensure_collection_loaded()