Update app.py

app.py

@@ -85,7 +85,8 @@ def run_sql_on_csv(sql_query, csv_file):
 def process(schema_file, question, csv_file):
     if not schema_file:
         return "Please upload a .sql schema file.", None, None, None
-    sql_text = schema_file.read().decode('utf-8')
+    with open(schema_file.name, 'r', encoding='utf-8') as f:
+        sql_text = f.read()
     schema = parse_sql_schema(sql_text)
     summary = generate_schema_summary(schema)
     if not question: