diff --git a/rag/utils/infinity_conn.py b/rag/utils/infinity_conn.py
index 46d2c4054..03251e72c 100644
--- a/rag/utils/infinity_conn.py
+++ b/rag/utils/infinity_conn.py
@@ -156,7 +156,6 @@ class InfinityConnection(DocStoreConnection):
             msg = f"Infinity {infinity_uri} is unhealthy in 120s."
             logger.error(msg)
             raise Exception(msg)
-        self.column_vec_patt = re.compile(r"q_(?P<vector_size>\d+)_vec")
         logger.info(f"Infinity {infinity_uri} is healthy.")
 
     def _migrate_db(self, inf_conn):
@@ -324,8 +323,7 @@ class InfinityConnection(DocStoreConnection):
                 output.append(score_func)
             if PAGERANK_FLD not in output:
                 output.append(PAGERANK_FLD)
-        output = [f for f in output if f != "_score" and self.column_vec_patt.match(f) is None]
-        logger.info(f"infinity output fields: {output}")
+        output = [f for f in output if f != "_score"]
         if limit <= 0:
             # ElasticSearch default limit is 10000
             limit = 10000