delete.result, delete.test:

  Added a test case for bug #8392.
sql_delete.cc:
  Fixed bug #8392.
  The bug caused a crash for a delete statement with ORDER BY
  that explicitly referred to the modified table.


sql/sql_delete.cc:
  Fixed bug #8392.
  The bug caused a crash for a delete statement with ORDER BY
  that explicitly referred to the modified table.
mysql-test/t/delete.test:
  Added a test case for bug #8392.
mysql-test/r/delete.result:
  Added a test case for bug #8392.

mysql-test/r/delete.result

@@ -61,3 +61,12 @@ select * from t1;
 a	b
 1	apple
 drop table t1;
+CREATE TABLE t1 ( a int PRIMARY KEY );
+DELETE FROM t1 WHERE t1.a > 0 ORDER BY t1.a;
+INSERT INTO t1 VALUES (0),(1),(2);
+DELETE FROM t1 WHERE t1.a > 0 ORDER BY t1.a LIMIT 1;
+SELECT * FROM t1;
+a
+0
+2
+DROP TABLE t1;

mysql-test/t/delete.test

@@ -71,3 +71,14 @@ select * from t1;
 delete t1 from t1, t1 as t2 where t1.b = t2.b and t1.a > t2.a;
 select * from t1;
 drop table t1;
+
+#
+# Bug #8392: delete with ORDER BY containing a direct reference to the table 
+#
+ 
+CREATE TABLE t1 ( a int PRIMARY KEY );
+DELETE FROM t1 WHERE t1.a > 0 ORDER BY t1.a;
+INSERT INTO t1 VALUES (0),(1),(2);
+DELETE FROM t1 WHERE t1.a > 0 ORDER BY t1.a LIMIT 1;
+SELECT * FROM t1;
+DROP TABLE t1;

sql/sql_delete.cc

@@ -111,6 +111,7 @@ int mysql_delete(THD *thd, TABLE_LIST *table_list, COND *conds, ORDER *order,
 
     bzero((char*) &tables,sizeof(tables));
     tables.table = table;
+    tables.alias = table_list->alias;
 
     table->io_cache = (IO_CACHE *) my_malloc(sizeof(IO_CACHE),
                                              MYF(MY_FAE | MY_ZEROFILL));