fix warning to be displayed only when option is not set by the user

plugins/modules/mysql_role.py

@@ -128,7 +128,6 @@ options:
         feature was introduced but since MySQL/MariaDB is case sensitive you should set this
         to C(true) in most cases.
     type: bool
-    default: false
     version_added: '3.8.0'
 
 notes:
@@ -970,7 +969,7 @@ def main():
         check_implicit_admin=dict(type='bool', default=False),
         set_default_role_all=dict(type='bool', default=True),
         members_must_exist=dict(type='bool', default=True),
-        column_case_sensitive=dict(type='bool', default=False),
+        column_case_sensitive=dict(type='bool', default=None),  # TODO 4.0.0 add default=True
     )
     module = AnsibleModule(
         argument_spec=argument_spec,
@@ -1018,6 +1017,11 @@ def main():
     if mysql_driver is None:
         module.fail_json(msg=mysql_driver_fail_msg)
 
+    # TODO Release 4.0.0 : Remove this test and variable assignation
+    if column_case_sensitive is None:
+        column_case_sensitive = False
+        module.warn("Option column_case_sensitive not provided, column's name will be uppercased")
+
     cursor = None
     try:
         if check_implicit_admin:
@@ -1087,10 +1091,6 @@ def main():
     try:
         if state == 'present':
             if not role.exists:
-                # TODO Release 4.0.0 : Remove this warning or change the message.
-                if not column_case_sensitive and "(" in str(priv):
-                    module.warn("column_case_sensitive set to False, column's name will be uppercased")
-
                 if subtract_privs:
                     priv = None  # avoid granting unwanted privileges
                 if detach_members:

plugins/modules/mysql_user.py

@@ -163,7 +163,6 @@ options:
       - This feature was introduced because MySQL 8 and above uses case sensitive
         fields names in privileges.
     type: bool
-    default: false
     version_added: '3.8.0'
 
 notes:
@@ -414,7 +413,7 @@ def main():
         resource_limits=dict(type='dict'),
         force_context=dict(type='bool', default=False),
         session_vars=dict(type='dict'),
-        column_case_sensitive=dict(type='bool', default=False)
+        column_case_sensitive=dict(type='bool', default=None),  # TODO 4.0.0 add default=True
     )
     module = AnsibleModule(
         argument_spec=argument_spec,
@@ -477,6 +476,11 @@ def main():
         module.fail_json(msg="unable to connect to database, check login_user and login_password are correct or %s has the credentials. "
                              "Exception message: %s" % (config_file, to_native(e)))
 
+    # TODO Release 4.0.0 : Remove this test and variable assignation
+    if column_case_sensitive is None:
+        column_case_sensitive = False
+        module.warn("Option column_case_sensitive not provided, column's name will be uppercased")
+
     if not sql_log_bin:
         cursor.execute("SET SQL_LOG_BIN=0;")
 
@@ -491,9 +495,6 @@ def main():
         except Exception as e:
             module.fail_json(msg=to_native(e))
 
-        # TODO Release 4.0.0 : Remove this warning or change the message.
-        if not column_case_sensitive and "(" in str(priv):
-            module.warn("column_case_sensitive set to False, column's name will be uppercased")
         priv = privileges_unpack(priv, mode, column_case_sensitive, ensure_usage=not subtract_privs)
     password_changed = False
     if state == "present":

tests/integration/targets/test_mysql_user/tasks/test_column_case_sensitive.yml

@@ -25,7 +25,7 @@
 
     # ================= Reproduce failure =====================================
 
-    - name: Mysql_user Column case sensitive | Create users
+    - name: Mysql_user Column case sensitive | Create test user
       community.mysql.mysql_user:
         <<: *mysql_params
         name: column_case_sensitive