1 files changed, 14 insertions, 0 deletions
diff --git a/mysql-test/t/error_simulation.test b/mysql-test/t/error_simulation.test
index f6edacfaa29..95ec2c5b21d 100644
--- a/mysql-test/t/error_simulation.test
+++ b/mysql-test/t/error_simulation.test
@@ -89,6 +89,20 @@ SET SESSION debug = DEFAULT;
 
 DROP TABLE t1, t2;
 
+
+--echo #
+--echo # Bug#11747970 34660: CRASH WHEN FEDERATED TABLE LOSES CONNECTION DURING INSERT ... SELECT
+--echo #
+CREATE TABLE t1(f1 INT, KEY(f1));
+CREATE TABLE t2(f1 INT);
+INSERT INTO t1 VALUES (1),(2);
+INSERT INTO t2 VALUES (1),(2);
+SET SESSION debug='d,bug11747970_simulate_error';
+INSERT IGNORE INTO t2 SELECT f1 FROM t1 a WHERE NOT EXISTS (SELECT 1 FROM t2 b WHERE a.f1 = b.f1);
+SET SESSION debug = DEFAULT;
+DROP TABLE t1,t2;
+
+
 --echo #
 --echo # End of 5.1 tests
 --echo #