diff --git a/tests/script/sh/checkAsan.sh b/tests/script/sh/checkAsan.sh
index c53fde1171..8759db8722 100755
--- a/tests/script/sh/checkAsan.sh
+++ b/tests/script/sh/checkAsan.sh
@@ -22,7 +22,7 @@ error_num=`cat ${LOG_DIR}/*.asan | grep "ERROR" | wc -l`
 memory_leak=`cat ${LOG_DIR}/*.asan | grep "Direct leak" | wc -l`
 indirect_leak=`cat ${LOG_DIR}/*.asan | grep "Indirect leak" | wc -l`
 runtime_error=`cat ${LOG_DIR}/*.asan | grep "runtime error" | grep -v "trees.c:873" | wc -l`
-python_error=`cat ${LOG_DIR}/*.info | grep "stack" | wc -l`
+python_error=`cat ${LOG_DIR}/*.info | grep -w "stack" | wc -l`
 
 echo -e "\033[44;32;1m"asan error_num: $error_num"\033[0m"
 echo -e "\033[44;32;1m"asan memory_leak: $memory_leak"\033[0m"
diff --git a/tests/system-test/2-query/abs.py b/tests/system-test/2-query/abs.py
index dcd9e6d620..d7478a55a8 100644
--- a/tests/system-test/2-query/abs.py
+++ b/tests/system-test/2-query/abs.py
@@ -487,8 +487,6 @@ class TDTestCase:
         self.check_result_auto(
             f"select abs(abs(abs(abs(abs(abs(abs(abs(abs(abs(c1)))))))))) nest_col_func from {dbname}.sub1_bound;", f"select abs(c1) from {dbname}.sub1_bound")
 
-        tdSql.query(f"select t1 xxx")
-        
         # check basic elem for table per row
         tdSql.query(
             f"select abs(c1) ,abs(c2) , abs(c3) , abs(c4), abs(c5), abs(c6) from {dbname}.sub1_bound ")