test added for the bug #45052

mysql-test/r/alter_table.result

@@ -1366,3 +1366,7 @@ ERROR HY000: Incorrect prefix key; the used key part isn't a string, the used le
 CREATE INDEX i2 ON t1 (a(20));
 ERROR HY000: Incorrect prefix key; the used key part isn't a string, the used length is longer than the key part, or the storage engine doesn't support unique prefix keys
 DROP TABLE t1;
+CREATE TABLE t1 (id int);
+INSERT INTO t1 VALUES (1), (2);
+ALTER TABLE t1 ADD COLUMN (f1 INT), ADD COLUMN (f2 INT), ADD KEY f2k(f2);
+DROP TABLE t1;

mysql-test/t/alter_table.test

@@ -1117,3 +1117,14 @@ CREATE INDEX i2 ON t1 (a(20));
 # cleanup
 DROP TABLE t1;
 
+
+#
+# Bug #45052    ALTER TABLE ADD COLUMN crashes server with multiple foreign key columns
+#   The alter table fails if 2 or more new fields added and
+#   also added a key with these fields
+#
+CREATE TABLE t1 (id int);
+INSERT INTO t1 VALUES (1), (2);
+ALTER TABLE t1 ADD COLUMN (f1 INT), ADD COLUMN (f2 INT), ADD KEY f2k(f2);
+DROP TABLE t1;
+