1 files changed, 44 insertions, 0 deletions
diff --git a/storage/tokudb/mysql-test/tokudb/t/mvcc-20.test b/storage/tokudb/mysql-test/tokudb/t/mvcc-20.test
new file mode 100644
index 00000000000..51832a30d38
--- /dev/null
+++ b/storage/tokudb/mysql-test/tokudb/t/mvcc-20.test
@@ -0,0 +1,44 @@
+# ticket 895 is a query optimization problem with the primary key
+
+#--source include/have_tokudb.inc
+--source include/not_5_5.inc
+
+SET DEFAULT_STORAGE_ENGINE = 'tokudb';
+
+--echo # Establish connection conn1 (user = root)
+connect (conn1,localhost,root,,);
+
+--disable_warnings
+DROP TABLE IF EXISTS foo;
+--enable_warnings
+
+connection default;
+set session transaction isolation level repeatable read;
+create table foo (a int, b int, c int, primary key (a))engine=TokuDB;
+insert into foo values (1,10,100),(2,20,200),(3,30,300),(4,40,400);
+begin;
+--echo # should read all four values
+select * from foo;
+
+connection conn1;
+set session transaction isolation level repeatable read;
+set session tokudb_load_save_space=1;
+alter table foo add index (b);
+
+connection default;
+--echo # should read all four values
+select * from foo;
+--echo # should fail
+--error ER_TABLE_DEF_CHANGED
+select sum(b) from foo;
+commit;
+--echo # should return 100
+select sum(b) from foo;
+
+connection default;
+disconnect conn1;
+
+connection default;
+# Final cleanup.
+set session transaction isolation level serializable;
+DROP TABLE foo;