Re-applying the work initially done by Brian, and since worked upon by me previously in several separate patches to the 5.1 parent but never pushed.

WL#2952 - add simple single-table only transactions to federated.


sql/ha_federated.cc:
  added handlerton functions for commit and rollback, added handler methods for same.
sql/ha_federated.h:
  added member variable for transaction data (linked list of federated handlers used in transaction) and member functions for support commit and rollback.
mysql-test/r/federated_transactions.result:
  New BitKeeper file ``mysql-test/r/federated_transactions.result''
mysql-test/t/federated_transactions.test:
  New BitKeeper file ``mysql-test/t/federated_transactions.test''

1 files changed, 37 insertions, 0 deletions

diff --git a/mysql-test/t/federated_transactions.test b/mysql-test/t/federated_transactions.test
new file mode 100644
index 00000000000..46359b8e024
--- /dev/null
+++ b/mysql-test/t/federated_transactions.test
@@ -0,0 +1,37 @@
+source include/federated.inc;
+
+connection slave;
+DROP TABLE IF EXISTS federated.t1;
+#SHOW ENGINES;
+CREATE TABLE federated.t1 (
+    `id` int(20) NOT NULL,
+    `name` varchar(32) NOT NULL default ''
+    )
+  DEFAULT CHARSET=latin1 ENGINE=BerkeleyDB;
+
+connection master;
+DROP TABLE IF EXISTS federated.t1;
+# # correct connection, same named tables
+--replace_result $SLAVE_MYPORT SLAVE_PORT
+eval CREATE TABLE federated.t1 (
+    `id` int(20) NOT NULL,
+    `name` varchar(32) NOT NULL default ''
+    )
+  ENGINE="FEDERATED" DEFAULT CHARSET=latin1
+  CONNECTION='mysql://root@127.0.0.1:$SLAVE_MYPORT/federated/t1';
+
+set autocommit=0;
+INSERT INTO federated.t1 (id, name) VALUES (1, 'foo');
+INSERT INTO federated.t1 (id, name) VALUES (2, 'fee');
+COMMIT;
+INSERT INTO federated.t1 (id, name) VALUES (3, 'fie');
+INSERT INTO federated.t1 (id, name) VALUES (4, 'fum');
+ROLLBACK;
+set autocommit=1;
+INSERT INTO federated.t1 (id, name) VALUES (5, 'foe');
+INSERT INTO federated.t1 (id, name) VALUES (6, 'fig');
+
+SELECT * FROM federated.t1;
+DELETE FROM federated.t1;
+
+source include/federated_cleanup.inc;