Update utils.py

utils.py

@@ -244,8 +244,11 @@ def clean_sql(s: str) -> str:
     if "LIMIT 1" in s:
         s = s.replace("LIMIT 1","").strip()
         s = s.replace("SELECT","SELECT TOP 1")
+    if s.endswith("TOP 1"):
+        s = s.replace("TOP 1","").strip()
+        s = s.replace("SELECT","SELECT TOP 1")
     return s
-
+    
 class SQLDatabaseChainPatched(SQLDatabaseChain):
     intermediate_steps: List[Any] = Field(default_factory=list)
     llms: Dict[str, Any] = Field(default_factory=dict)