MDEV-34647: experimental fix

mysql-test/suite/galera/r/mdev-22063.result

 connection node_2;
 connection node_1;
+SET GLOBAL wsrep_mode = "REPLICATE_MYISAM,REPLICATE_ARIA";
+connection node_2;
+SET GLOBAL wsrep_mode = "REPLICATE_MYISAM,REPLICATE_ARIA";
+connection node_1;
 # Case 1 CREATE SEQUENCE with no NOCACHE
 CREATE SEQUENCE s ENGINE=InnoDB;
 ERROR 42000: This version of MariaDB doesn't yet support 'CACHE without INCREMENT BY 0 in Galera cluster'
@@ -239,3 +243,5 @@ pk
 DROP TABLE t1;
 DROP VIEW view_t1;
 SET GLOBAL wsrep_mode=DEFAULT;
+connection node_2;
+SET GLOBAL wsrep_mode=DEFAULT;

mysql-test/suite/galera/t/mdev-22063.test

@@ -4,6 +4,11 @@
 --source include/have_sequence.inc
 --source include/have_aria.inc
 
+SET GLOBAL wsrep_mode = "REPLICATE_MYISAM,REPLICATE_ARIA";
+--connection node_2
+SET GLOBAL wsrep_mode = "REPLICATE_MYISAM,REPLICATE_ARIA";
+--connection node_1
+
 --echo # Case 1 CREATE SEQUENCE with no NOCACHE
 --error ER_NOT_SUPPORTED_YET
 CREATE SEQUENCE s ENGINE=InnoDB;
@@ -182,3 +187,5 @@ SELECT * FROM t1;
 DROP TABLE t1;
 DROP VIEW view_t1;
 SET GLOBAL wsrep_mode=DEFAULT;
+--connection node_2
+SET GLOBAL wsrep_mode=DEFAULT;

sql/sql_parse.cc

@@ -4705,23 +4705,32 @@ mysql_execute_command(THD *thd, bool is_called_from_prepared_stmt)
 #ifdef WITH_WSREP
       if (wsrep && !first_table->view)
       {
-        bool is_innodb= first_table->table->file->partition_ht()->db_type == DB_TYPE_INNODB;
-
-        // For consistency check inserted table needs to be InnoDB
-        if (!is_innodb && thd->wsrep_consistency_check != NO_CONSISTENCY_CHECK)
+        const legacy_db_type db_type= first_table->table->file->partition_ht()->db_type;
+        // For InnoDB we don't need to worry about anything here:
+        if (db_type != DB_TYPE_INNODB)
         {
-          push_warning_printf(thd, Sql_condition::WARN_LEVEL_WARN,
-                              HA_ERR_UNSUPPORTED,
-                              "Galera cluster does support consistency check only"
-                              " for InnoDB tables.");
-          thd->wsrep_consistency_check= NO_CONSISTENCY_CHECK;
+          // If Aria or MyISAM are not replicated, then we have nothing to worry about either:
+          bool replicate= (db_type == DB_TYPE_MYISAM && wsrep_check_mode(WSREP_MODE_REPLICATE_MYISAM)) ||
+                          (db_type == DB_TYPE_ARIA   && wsrep_check_mode(WSREP_MODE_REPLICATE_ARIA));
+          if (replicate)
+          {
+            // For consistency check inserted table needs to be InnoDB
+            if (thd->wsrep_consistency_check != NO_CONSISTENCY_CHECK)
+            {
+              push_warning_printf(thd, Sql_condition::WARN_LEVEL_WARN,
+                                  HA_ERR_UNSUPPORTED,
+                                  "Galera cluster does support consistency check only"
+                                  " for InnoDB tables.");
+              thd->wsrep_consistency_check= NO_CONSISTENCY_CHECK;
+            }
+            // We start TOI if it is not yet started and hope for the best
+            if (!wsrep_toi)
+              WSREP_TO_ISOLATION_BEGIN(first_table->db.str, first_table->table_name.str, NULL);
+          }
         }
-
-        // For !InnoDB we start TOI if it is not yet started and hope for the best
-        if (!is_innodb && !wsrep_toi)
-          WSREP_TO_ISOLATION_BEGIN(first_table->db.str, first_table->table_name.str, NULL);
       }
 #endif /* WITH_WSREP */
+
       /*
         Only the INSERT table should be merged. Other will be handled by
         select.