fix case

tests/system-test/2-query/sum.py

@@ -73,8 +73,6 @@ class TDTestCase:
                  {BINARY_COL} binary(16), {NCHAR_COL} nchar(32), {TS_COL} timestamp
             )
             '''
-        print(create_stb_sql)
-        print(create_ntb_sql)
         tdSql.execute(create_stb_sql)
         tdSql.execute(create_ntb_sql)
 
@@ -132,12 +130,11 @@ class TDTestCase:
         )
 
         for i in range(rows):
-            tdSql.execute(
-                f'''insert into t1 values
+            insert_data = f'''insert into t1 values
                 ( now()-{i}h, {i}, {i}, { i % 32767 }, { i % 127}, { i * 1.11111 }, { i * 1000.1111 }, { i % 2},
                 "binary_{i}", "nchar_{i}", now-{i}s )
                 '''
-            )
+            tdSql.execute(insert_data)
         tdSql.execute(
             f'''insert into t1 values
             ( now() + 3h, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL )