update

pkg/executor/simple.go

@@ -2521,7 +2521,6 @@ func (e *SimpleExec) executeSetPwd(ctx context.Context, s *ast.SetPwdStmt) error
 	}
 	authPlugins := extensions.GetAuthPlugins()
 	var pwd string
-	// FIXME
 	switch authplugin {
 	case mysql.AuthCachingSha2Password, mysql.AuthTiDBSM3Password:
 		pwd = auth.NewHashPassword(s.Password, authplugin)

pkg/parser/ast/misc.go

@@ -1387,6 +1387,7 @@ type UserSpec struct {
 	AuthOpt *AuthOption
 	IsRole  bool
 
+	// DefaultAuthPlugin is used to store the values of default_authentication_plugin
 	DefaultAuthPlugin string
 }
 

tests/integrationtest/r/executor/simple.result

@@ -495,20 +495,42 @@ CREATE USER 'default_sha2_user'@'%' IDENTIFIED WITH 'tidb_sm3_password' AS '' RE
 select plugin from mysql.user where user = 'default_sha2_user';
 plugin
 tidb_sm3_password
-alter user default_sha2_user identified with 'authentication_ldap_simple';
-show create user default_sha2_user;
-CREATE USER for default_sha2_user@%
-CREATE USER 'default_sha2_user'@'%' IDENTIFIED WITH 'authentication_ldap_simple' AS '' REQUIRE NONE PASSWORD EXPIRE DEFAULT ACCOUNT UNLOCK PASSWORD HISTORY DEFAULT PASSWORD REUSE INTERVAL DEFAULT
+drop user default_sha2_user;
+create user default_sha2_user identified by '1234';
+set password for default_sha2_user = '12345';
+alter user default_sha2_user identified by '123456';
 select plugin from mysql.user where user = 'default_sha2_user';
 plugin
-authentication_ldap_simple
-alter user default_sha2_user identified with 'authentication_ldap_sasl';
-show create user default_sha2_user;
-CREATE USER for default_sha2_user@%
-CREATE USER 'default_sha2_user'@'%' IDENTIFIED WITH 'authentication_ldap_sasl' AS '' REQUIRE NONE PASSWORD EXPIRE DEFAULT ACCOUNT UNLOCK PASSWORD HISTORY DEFAULT PASSWORD REUSE INTERVAL DEFAULT
+caching_sha2_password
+alter user default_sha2_user identified with 'mysql_native_password' by '123456';
 select plugin from mysql.user where user = 'default_sha2_user';
 plugin
-authentication_ldap_sasl
+mysql_native_password
+alter user default_sha2_user identified with 'caching_sha2_password';
+select plugin from mysql.user where user = 'default_sha2_user';
+plugin
+caching_sha2_password
+set sql_mode = '';
+select @@sql_mode;
+@@sql_mode
+
+select user, host, plugin from mysql.user where user = 'non_exist_user';
+user	host	plugin
+grant select on test.* to non_exist_user;
+select user, host, plugin from mysql.user where user = 'non_exist_user';
+user	host	plugin
+non_exist_user	%	caching_sha2_password
+set @@sql_mode = default;
+alter user non_exist_user identified with 'mysql_native_password';
+show create user non_exist_user;
+CREATE USER for non_exist_user@%
+CREATE USER 'non_exist_user'@'%' IDENTIFIED WITH 'mysql_native_password' AS '' REQUIRE NONE PASSWORD EXPIRE DEFAULT ACCOUNT UNLOCK PASSWORD HISTORY DEFAULT PASSWORD REUSE INTERVAL DEFAULT
+update mysql.user set plugin = '' where user = 'non_exist_user';
+flush privileges;
+show create user non_exist_user;
+CREATE USER for non_exist_user@%
+CREATE USER 'non_exist_user'@'%' IDENTIFIED WITH 'caching_sha2_password' AS '' REQUIRE NONE PASSWORD EXPIRE DEFAULT ACCOUNT UNLOCK PASSWORD HISTORY DEFAULT PASSWORD REUSE INTERVAL DEFAULT
+drop user non_exist_user;
 drop user default_sm3_user;
 drop user default_sha2_user;
 drop user native_plugin_user;

tests/integrationtest/t/executor/simple.test

@@ -516,15 +516,35 @@ select plugin from mysql.user where user = 'default_sha2_role';
 alter user default_sha2_user identified with 'tidb_sm3_password';
 show create user default_sha2_user;
 select plugin from mysql.user where user = 'default_sha2_user';
+drop user default_sha2_user;
 
-alter user default_sha2_user identified with 'authentication_ldap_simple';
-show create user default_sha2_user;
+create user default_sha2_user identified by '1234';
+set password for default_sha2_user = '12345';
+alter user default_sha2_user identified by '123456';
 select plugin from mysql.user where user = 'default_sha2_user';
-
-alter user default_sha2_user identified with 'authentication_ldap_sasl';
-show create user default_sha2_user;
+alter user default_sha2_user identified with 'mysql_native_password' by '123456';
+select plugin from mysql.user where user = 'default_sha2_user';
+alter user default_sha2_user identified with 'caching_sha2_password';
 select plugin from mysql.user where user = 'default_sha2_user';
 
+# test GRANT create default user
+
+set sql_mode = '';
+select @@sql_mode;
+select user, host, plugin from mysql.user where user = 'non_exist_user';
+grant select on test.* to non_exist_user;
+select user, host, plugin from mysql.user where user = 'non_exist_user';
+set @@sql_mode = default;
+
+# test SHOW CREATE USER
+
+alter user non_exist_user identified with 'mysql_native_password';
+show create user non_exist_user;
+update mysql.user set plugin = '' where user = 'non_exist_user';
+flush privileges;
+show create user non_exist_user;
+
+drop user non_exist_user;
 drop user default_sm3_user;
 drop user default_sha2_user;
 drop user native_plugin_user;