Merge of the fix for bug #40113 to 5.1.

mysql-test/r/bug40113.result

+#
+# Bug #40113: Embedded SELECT inside UPDATE or DELETE can timeout 
+#  without error
+#
+CREATE TABLE t1 (a int, b int, PRIMARY KEY  (a,b)) ENGINE=InnoDB;
+INSERT INTO t1 (a,b) VALUES (1070109,99);
+CREATE TABLE t2 (b int, a int, PRIMARY KEY (b)) ENGINE=InnoDB;
+INSERT INTO t2 (b,a) VALUES (7,1070109);
+SELECT * FROM t1;
+a	b
+1070109	99
+BEGIN;
+SELECT b FROM t2 WHERE b=7 FOR UPDATE;
+b
+7
+BEGIN;
+SELECT b FROM t2 WHERE b=7 FOR UPDATE;
+ERROR HY000: Lock wait timeout exceeded; try restarting transaction
+INSERT INTO t1 (a) VALUES ((SELECT a FROM t2 WHERE b=7));
+ERROR HY000: Lock wait timeout exceeded; try restarting transaction
+UPDATE t1 SET a='7000000' WHERE a=(SELECT a FROM t2 WHERE b=7);
+ERROR HY000: Lock wait timeout exceeded; try restarting transaction
+DELETE FROM t1 WHERE a=(SELECT a FROM t2 WHERE b=7);
+ERROR HY000: Lock wait timeout exceeded; try restarting transaction
+SELECT * FROM t1;
+a	b
+1070109	99
+DROP TABLE t2, t1;
+End of 5.0 tests

mysql-test/t/bug40113-master.opt

+--innodb_lock_wait_timeout=1

mysql-test/t/bug40113.test

+--source include/have_innodb.inc
+
+--echo #
+--echo # Bug #40113: Embedded SELECT inside UPDATE or DELETE can timeout 
+--echo #  without error
+--echo #
+
+CREATE TABLE t1 (a int, b int, PRIMARY KEY  (a,b)) ENGINE=InnoDB;
+
+INSERT INTO t1 (a,b) VALUES (1070109,99);
+
+CREATE TABLE t2 (b int, a int, PRIMARY KEY (b)) ENGINE=InnoDB;
+
+INSERT INTO t2 (b,a) VALUES (7,1070109);
+
+SELECT * FROM t1;
+
+BEGIN;
+
+SELECT b FROM t2 WHERE b=7 FOR UPDATE;
+
+CONNECT (addconroot, localhost, root,,);
+CONNECTION addconroot;
+
+BEGIN;
+
+--error ER_LOCK_WAIT_TIMEOUT
+SELECT b FROM t2 WHERE b=7 FOR UPDATE;
+
+--error ER_LOCK_WAIT_TIMEOUT
+INSERT INTO t1 (a) VALUES ((SELECT a FROM t2 WHERE b=7));
+
+--error ER_LOCK_WAIT_TIMEOUT
+UPDATE t1 SET a='7000000' WHERE a=(SELECT a FROM t2 WHERE b=7);
+
+--error ER_LOCK_WAIT_TIMEOUT
+DELETE FROM t1 WHERE a=(SELECT a FROM t2 WHERE b=7);
+
+SELECT * FROM t1;
+
+CONNECTION default;
+DISCONNECT addconroot;
+
+DROP TABLE t2, t1;
+
+--echo End of 5.0 tests

sql/sql_delete.cc

@@ -187,6 +187,14 @@ bool mysql_delete(THD *thd, TABLE_LIST *table_list, COND *conds,
     delete select;
     free_underlaid_joins(thd, select_lex);
     thd->row_count_func= 0;
+    /* 
+      Error was already created by quick select evaluation (check_quick()).
+      TODO: Add error code output parameter to Item::val_xxx() methods.
+      Currently they rely on the user checking DA for
+      errors when unwinding the stack after calling Item::val_xxx().
+    */
+    if (thd->is_error())
+      DBUG_RETURN(TRUE);
     my_ok(thd, (ha_rows) thd->row_count_func);
     /*
       We don't need to call reset_auto_increment in this case, because
@@ -490,7 +498,7 @@ int mysql_prepare_delete(THD *thd, TABLE_LIST *table_list, Item **conds)
 
   if (select_lex->inner_refs_list.elements &&
     fix_inner_refs(thd, all_fields, select_lex, select_lex->ref_pointer_array))
-    DBUG_RETURN(-1);
+    DBUG_RETURN(TRUE);
 
   select_lex->fix_prepare_information(thd, conds, &fake_conds);
   DBUG_RETURN(FALSE);

sql/sql_update.cc

@@ -292,7 +292,7 @@ int mysql_update(THD *thd,
 
   if (select_lex->inner_refs_list.elements &&
     fix_inner_refs(thd, all_fields, select_lex, select_lex->ref_pointer_array))
-    DBUG_RETURN(-1);
+    DBUG_RETURN(1);
 
   if (conds)
   {
@@ -332,7 +332,14 @@ int mysql_update(THD *thd,
   {
     delete select;
     free_underlaid_joins(thd, select_lex);
-    if (error)
+    /*
+      There was an error or the error was already sent by
+      the quick select evaluation.
+      TODO: Add error code output parameter to Item::val_xxx() methods.
+      Currently they rely on the user checking DA for
+      errors when unwinding the stack after calling Item::val_xxx().
+    */
+    if (error || thd->is_error())
     {
       DBUG_RETURN(1);				// Error in where
     }