Update app.py

app.py

@@ -347,10 +347,10 @@ def format_schema_info(schema_data: dict) -> str:
 def process_query(user_query: str, groq_api_key: str):
     """Main processing function"""
     if not groq_api_key or not groq_api_key.strip():
-        return "❌ Please enter your Groq API key", "", "", "", ""
+        return "❌ Please enter your Groq API key", None, "", "", ""
     
     if not user_query or not user_query.strip():
-        return "❌ Please enter a query", "", "", "", ""
+        return "❌ Please enter a query", None, "", "", ""
     
     try:
         output_log = []
@@ -395,7 +395,7 @@ def process_query(user_query: str, groq_api_key: str):
             }
         }
         
-        sql_output_formatted = json.dumps(sql_output, indent=2)
+        sql_output_formatted = sql_output
         output_log.append("✅ SQL Query Generated:\n")
         
         # Step 4: Execute query
@@ -423,7 +423,7 @@ def process_query(user_query: str, groq_api_key: str):
         
     except Exception as e:
         error_msg = f"❌ Error: {str(e)}"
-        return error_msg, "", "", "", ""
+        return error_msg, None, "", "", ""
 
 # Custom CSS for better table styling
 custom_css = """