Fix special chars problem for Postgres

lightrag/utils.py

@@ -1385,7 +1385,12 @@ def normalize_extracted_info(name: str, is_entity=False) -> str:
     name = re.sub(r"(?<=[a-zA-Z0-9])\s+(?=[\u4e00-\u9fa5])", "", name)
 
     # Remove English quotation marks from the beginning and end
-    name = name.strip('"').strip("'")
+    if (
+        len(name) >= 2
+        and name.startswith('"')
+        and name.endswith('"')
+    ):
+        name = name[1:-1]
 
     if is_entity:
         # remove Chinese quotes