Update app.py

app.py

@@ -35,6 +35,16 @@ from huggingface_hub import snapshot_download, hf_hub_download
 from scipy.sparse import csr_matrix, save_npz, load_npz, vstack
 from langchain_experimental.text_splitter import SemanticChunker
 from langchain_community.document_loaders import WikipediaLoader, WebBaseLoader
+from sqlalchemy import (
+    create_engine,
+    MetaData,
+    Table,
+    Column,
+    String,
+    Integer,
+    select,
+    column,
+)
 from qdrant_client.models import (
     NamedSparseVector,
     NamedVector,