diff --git a/mysql-test/r/bug69574.result b/mysql-test/r/bug69574.result
new file mode 100644
index 0000000..adea0b1
--- /dev/null
+++ b/mysql-test/r/bug69574.result
@@ -0,0 +1,28 @@
+include/master-slave.inc
+[connection master]
+CREATE TABLE `t1` (
+`c` int(11) DEFAULT NULL,
+`d` int(11) NOT NULL
+) ENGINE=MyISAM DEFAULT CHARSET=utf8;
+CREATE TABLE `t2` (
+`c` int(11) DEFAULT NULL,
+`d` int(11) NOT NULL
+) ENGINE=MyISAM DEFAULT CHARSET=utf8;
+CREATE TABLE `t` (
+`c` int(11) DEFAULT NULL,
+`d` int(11) NOT NULL
+) ENGINE=MRG_MyISAM DEFAULT CHARSET=utf8 INSERT_METHOD=LAST UNION=(`t1`,`t2`);
+
+flush to 000002
+
+flush logs;
+insert into t values(1,1);
+flush logs;
+
+flush to 000003 so 02 only contain one transaction
+
+select count(*) from t;
+count(*)
+2
+drop table t,t1,t2;
+include/rpl_end.inc
diff --git a/mysql-test/t/bug69574.test b/mysql-test/t/bug69574.test
new file mode 100644
index 0000000..e949dac
--- /dev/null
+++ b/mysql-test/t/bug69574.test
@@ -0,0 +1,38 @@
+--source include/master-slave.inc
+CREATE TABLE `t1` (
+  `c` int(11) DEFAULT NULL,
+  `d` int(11) NOT NULL
+) ENGINE=MyISAM DEFAULT CHARSET=utf8;
+CREATE TABLE `t2` (
+  `c` int(11) DEFAULT NULL,
+  `d` int(11) NOT NULL
+) ENGINE=MyISAM DEFAULT CHARSET=utf8;
+
+CREATE TABLE `t` (
+  `c` int(11) DEFAULT NULL,
+  `d` int(11) NOT NULL
+) ENGINE=MRG_MyISAM DEFAULT CHARSET=utf8 INSERT_METHOD=LAST UNION=(`t1`,`t2`);
+
+--echo
+--echo flush to 000002
+--echo
+
+flush logs;
+insert into t values(1,1);
+flush logs;
+
+--echo
+--echo flush to 000003 so 02 only contain one transaction
+--echo
+
+let $port= query_get_value("select @@port", @@port, 1);
+let $MYSQLD_DATADIR= `select @@datadir`;
+--exec $MYSQL_BINLOG  $MYSQLD_DATADIR/master-bin.000002 | mysql -h127.0.0.1 -P$port -uroot test
+--sleep 1
+connection slave;
+select count(*) from t;
+connection master;
+drop table t,t1,t2;
+
+
+--source include/rpl_end.inc
diff --git a/sql/log_event.cc b/sql/log_event.cc
index efd5b3d..327c737 100644
--- a/sql/log_event.cc
+++ b/sql/log_event.cc
@@ -7906,6 +7906,13 @@ int Rows_log_event::do_apply_event(Relay_log_info const *rli)
       for (uint i= 0 ; ptr && (i < rli->tables_to_lock_count);
                           ptr= static_cast<RPL_TABLE_LIST*>(ptr->next_global), i++)
       {
+        /* Bug #69574 */
+        if (ptr->parent_l && (ptr->parent_l->table->s->db_type()->db_type == DB_TYPE_MRG_MYISAM))
+        {
+          i--;
+          continue;
+        }
+
         DBUG_ASSERT(ptr->m_tabledef_valid);
         TABLE *conv_table;
         if (!ptr->m_tabledef.compatible_with(thd, const_cast<Relay_log_info*>(rli),