fix: do not create vector extension

custom_pgvector.py

@@ -114,7 +114,6 @@ class CustomPGVector(VectorStore):
         Initialize the store.
         """
         # self._conn = self.connect()
-        self.create_vector_extension()
 
         self.EmbeddingStore = Article
 
@@ -122,15 +121,6 @@ class CustomPGVector(VectorStore):
     def embeddings(self) -> Embeddings:
         return self.embedding_function
 
-    def create_vector_extension(self) -> None:
-        try:
-            with Session(self._conn) as session:
-                statement = sqlalchemy.text("CREATE EXTENSION IF NOT EXISTS vector")
-                session.execute(statement)
-                session.commit()
-        except Exception as e:
-            self.logger.exception(e)
-
     def drop_tables(self) -> None:
         with self._conn.begin():
             Base.metadata.drop_all(self._conn)