diff --git a/tests/script/tsim/alter/table.sim b/tests/script/tsim/alter/table.sim
index db2a22205f9002c715f516fe9cdc31ea8082d1ee..0cf291523a7b4b6ca2cbf321a797c65656dfd59f 100644
--- a/tests/script/tsim/alter/table.sim
+++ b/tests/script/tsim/alter/table.sim
@@ -657,36 +657,33 @@ if $data20 != null then
   return -1
 endi
 
-#print =============== error for normal table
-#sql create table tb2023(ts timestamp, f int);
-#sql_error alter table tb2023 add column v varchar(65535);
-#sql_error alter table tb2023 add column v varchar(65535);
-#sql_error alter table tb2023 add column v varchar(65530);
-#sql alter table tb2023 add column v varchar(16374);
-#sql_error alter table tb2023 modify column v varchar(65536);
-#sql desc tb2023
-#sql alter table tb2023 drop column v
-#sql_error alter table tb2023 add column v nchar(16384);
-#sql alter table tb2023 add column v nchar(4093);
-#sql_error alter table tb2023 modify column v nchar(16384);
-#sql_error alter table tb2023 add column v nchar(16384);
-#sql alter table tb2023 drop column v
-#sql alter table tb2023 add column v nchar(16374);
-#sql desc tb2023
-#
-#print =============== error for super table
-#sql create table stb2023(ts timestamp, f int) tags(t1 int);
-#sql_error alter table stb2023 add column v varchar(65535);
-#sql_error alter table stb2023 add column v varchar(65536);
-#sql_error alter table stb2023 add column v varchar(33100);
-#sql alter table stb2023 add column v varchar(16374);
-#sql_error alter table stb2023 modify column v varchar(16375);
-#sql desc stb2023
-#sql alter table stb2023 drop column v
-#sql_error alter table stb2023 add column v nchar(4094);
-#sql alter table stb2023 add column v nchar(4093);
-#sql_error alter table stb2023 modify column v nchar(4094);
-#sql desc stb2023
+print =============== error for normal table
+sql create table tb2023(ts timestamp, f int);
+sql_error alter table tb2023 add column v varchar(65518);
+sql_error alter table tb2023 add column v varchar(65531);
+sql_error alter table tb2023 add column v varchar(65535);
+sql alter table tb2023 add column v varchar(65517);
+sql_error alter table tb2023 modify column v varchar(65518);
+sql desc tb2023
+sql alter table tb2023 drop column v
+sql_error alter table tb2023 add column v nchar(16380);
+sql alter table tb2023 add column v nchar(16379);
+sql_error alter table tb2023 modify column v nchar(16380);
+sql desc tb2023
+
+print =============== error for super table
+sql create table stb2023(ts timestamp, f int) tags(t1 int);
+sql_error alter table stb2023 add column v varchar(65518);
+sql_error alter table stb2023 add column v varchar(65531);
+sql_error alter table stb2023 add column v varchar(65535);
+sql alter table stb2023 add column v varchar(65517);
+sql_error alter table stb2023 modify column v varchar(65518);
+sql desc stb2023
+sql alter table stb2023 drop column v
+sql_error alter table stb2023 add column v nchar(16380);
+sql alter table stb2023 add column v nchar(16379);
+sql_error alter table stb2023 modify column v nchar(16380);
+sql desc stb2023
 
 print ======= over
 sql drop database d1
diff --git a/tests/script/tsim/parser/alter_column.sim b/tests/script/tsim/parser/alter_column.sim
index f89211573596ae02f0a484840cc7679fb1d58a34..2bf369b91054c3953406fc5116a88c94f508aafb 100644
--- a/tests/script/tsim/parser/alter_column.sim
+++ b/tests/script/tsim/parser/alter_column.sim
@@ -48,7 +48,7 @@ sql_error alter table tb modify column c2 binary(10);
 sql_error alter table tb modify column c2 binary(9);
 sql_error alter table tb modify column c2 binary(-9);
 sql_error alter table tb modify column c2 binary(0);
-sql_error alter table tb modify column c2 binary(65600);
+sql_error alter table tb modify column c2 binary(65436);
 sql_error alter table tb modify column c2 nchar(30);
 sql_error alter table tb modify column c3 double;
 sql_error alter table tb modify column c3 nchar(10);