Rollback the update

lightrag/lightrag.py

@@ -457,13 +457,13 @@ class LightRAG:
             namespace=NameSpace.VECTOR_STORE_ENTITIES,
             workspace=self.workspace,
             embedding_func=self.embedding_func,
-            meta_fields={"entity_name", "source_id", "content", "file_path", "entity_type"},
+            meta_fields={"entity_name", "source_id", "content", "file_path"},
         )
         self.relationships_vdb: BaseVectorStorage = self.vector_db_storage_cls(  # type: ignore
             namespace=NameSpace.VECTOR_STORE_RELATIONSHIPS,
             workspace=self.workspace,
             embedding_func=self.embedding_func,
-            meta_fields={"src_id", "tgt_id", "source_id", "content", "file_path", "weight"},
+            meta_fields={"src_id", "tgt_id", "source_id", "content", "file_path"},
         )
         self.chunks_vdb: BaseVectorStorage = self.vector_db_storage_cls(  # type: ignore
             namespace=NameSpace.VECTOR_STORE_CHUNKS,