Post fix for MDEV-32449

mysql-test/main/alter_table.result

@@ -3118,6 +3118,12 @@ t2	CREATE TABLE `t2` (
   KEY `altcol1` (`altcol1`(2300))
 ) ENGINE=Aria DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci PAGE_CHECKSUM=1 ROW_FORMAT=PAGE
 drop table t1,t2;
+# Another test for MDEV-32449
+CREATE TABLE t1 (a POINT, b POINT, KEY(a)) ENGINE=Aria;
+ALTER TABLE t1 ADD FOREIGN KEY (a) REFERENCES t (b);
+CREATE TEMPORARY TABLE t2 LIKE t1;
+DROP TEMPORARY TABLE t2;
+DROP TABLE t1;
 #
 # End of 10.6 tests
 #

mysql-test/main/alter_table.test

@@ -2397,6 +2397,14 @@ show create table t1;
 show create table t2;
 drop table t1,t2;
 
+--echo # Another test for MDEV-32449
+
+CREATE TABLE t1 (a POINT, b POINT, KEY(a)) ENGINE=Aria;
+ALTER TABLE t1 ADD FOREIGN KEY (a) REFERENCES t (b);
+CREATE TEMPORARY TABLE t2 LIKE t1;
+DROP TEMPORARY TABLE t2;
+DROP TABLE t1;
+
 --echo #
 --echo # End of 10.6 tests
 --echo #

sql/sql_table.cc

@@ -2898,10 +2898,11 @@ mysql_prepare_create_table(THD *thd, HA_CREATE_INFO *create_info,
   key_iterator.rewind();
   while ((key=key_iterator++))
   {
-    if (key->type == Key::IGNORE_KEY && !create_info->tmp_table())
+    if (key->type == Key::IGNORE_KEY)
     {
       /* The key was replaced by another key */
-      if (alter_info->add_stat_drop_index(thd, &key->name))
+      if (!create_info->tmp_table() &&
+          alter_info->add_stat_drop_index(thd, &key->name))
         DBUG_RETURN(true);
       continue;
     }