MDEV-18907 Slow log: RENAME TABLE is not "admin", while ALTER TABLE..RENAME is

mysql-test/r/log_slow_debug.result

@@ -73,6 +73,7 @@ sql_text
 [slow] CREATE INDEX t1a ON t1 (a)
 [slow] DROP INDEX t1a ON t1
 [slow] ALTER TABLE t2 RENAME t2
+[slow] RENAME TABLE t2 TO t3
 [slow] ALTER TABLE t4 MODIFY a INT DEFAULT 1
 #
 # Expect none of admin DDL statements in the slow log (ON,filesort)
@@ -120,7 +121,6 @@ sql_text
 [slow] CREATE TABLE t1 (a INT)
 [slow] DROP TABLE t1
 [slow] CREATE TABLE t2 (a INT)
-[slow] RENAME TABLE t2 TO t3
 [slow] DROP TABLE t3
 [slow] CREATE TABLE t4 (a INT)
 [slow] PREPARE stmt FROM 'ALTER TABLE t4 MODIFY a INT DEFAULT 1'

sql/sql_parse.cc

@@ -324,7 +324,8 @@ void init_update_queries(void)
   sql_command_flags[SQLCOM_DROP_DB]=        CF_CHANGES_DATA | CF_AUTO_COMMIT_TRANS;
   sql_command_flags[SQLCOM_ALTER_DB_UPGRADE]= CF_AUTO_COMMIT_TRANS;
   sql_command_flags[SQLCOM_ALTER_DB]=       CF_CHANGES_DATA | CF_AUTO_COMMIT_TRANS;
-  sql_command_flags[SQLCOM_RENAME_TABLE]=   CF_CHANGES_DATA | CF_AUTO_COMMIT_TRANS;
+  sql_command_flags[SQLCOM_RENAME_TABLE]=   CF_CHANGES_DATA | CF_AUTO_COMMIT_TRANS |
+                                            CF_ADMIN_COMMAND;
   sql_command_flags[SQLCOM_DROP_INDEX]=     CF_CHANGES_DATA | CF_AUTO_COMMIT_TRANS |
                                             CF_REPORT_PROGRESS | CF_ADMIN_COMMAND;
   sql_command_flags[SQLCOM_CREATE_VIEW]=    CF_CHANGES_DATA | CF_REEXECUTION_FRAGILE |