1 files changed, 42 insertions, 0 deletions
diff --git a/mysql-test/t/federated.test b/mysql-test/t/federated.test
index 80b31c610a2..6e53b1e3adb 100644
--- a/mysql-test/t/federated.test
+++ b/mysql-test/t/federated.test
@@ -1310,4 +1310,46 @@ connection slave;
 DROP TABLE federated.bug_17377_table;
 
 
+# 
+# Additional test for bug#18437 "Wrong values inserted with a before
+# update trigger on NDB table". SQL-layer didn't properly inform
+# handler about fields which were read and set in triggers. In some
+# cases this resulted in incorrect (garbage) values of OLD variables
+# and lost changes to NEW variables.
+# Since for federated engine only operation which is affected by wrong
+# fields mark-up is handler::write_row() this file constains coverage
+# for ON INSERT triggers only. Tests for other types of triggers reside
+# in ndb_trigger.test.
+#
+--disable_warnings
+drop table if exists federated.t1;
+--enable_warnings
+create table federated.t1 (a int, b int, c int);
+connection master;
+--disable_warnings
+drop table if exists federated.t1;
+drop table if exists federated.t2;
+--enable_warnings
+--replace_result $SLAVE_MYPORT SLAVE_PORT
+eval create table federated.t1 (a int,  b int, c int) engine=federated connection='mysql://root@127.0.0.1:$SLAVE_MYPORT/federated/t1';
+create trigger federated.t1_bi before insert on federated.t1 for each row set new.c= new.a * new.b;
+create table federated.t2 (a int, b int);
+insert into federated.t2 values (13, 17), (19, 23);
+# Each of three statements should correctly set values for all three fields
+# insert
+insert into federated.t1 (a, b) values (1, 2), (3, 5), (7, 11);
+select * from federated.t1;
+delete from federated.t1;
+# insert ... select
+insert into federated.t1 (a, b) select * from federated.t2;
+select * from federated.t1;
+delete from federated.t1;
+# load
+load data infile '../std_data_ln/loaddata5.dat' into table federated.t1 fields terminated by '' enclosed by '' ignore 1 lines (a, b);
+select * from federated.t1;
+drop tables federated.t1, federated.t2;
+
+connection slave;
+drop table federated.t1;
+
 source include/federated_cleanup.inc;