Merge mysql.com:/home/bkroot/mysql-5.0

into  mysql.com:/home/bk/mysql-5.0

cmd-line-utils/libedit/chared.c

@@ -51,13 +51,13 @@ cv_undo(EditLine *el)
 {
 	c_undo_t *vu = &el->el_chared.c_undo;
 	c_redo_t *r = &el->el_chared.c_redo;
-	uint size;
+	int size;
 
 	/* Save entire line for undo */
 	size = el->el_line.lastchar - el->el_line.buffer;
 	vu->len = size;
 	vu->cursor = el->el_line.cursor - el->el_line.buffer;
-	memcpy(vu->buf, el->el_line.buffer, size);
+	memcpy(vu->buf, el->el_line.buffer, (size_t)size);
 
 	/* save command info for redo */
 	r->count = el->el_state.doingarg ? el->el_state.argument : 0;

mysql-test/r/subselect.result

@@ -2837,3 +2837,9 @@ WHERE select_id = 0 OR select_id = 1);
 values_id
 1
 DROP TABLE t1, t2;
+create table t1 (fld enum('0','1'));
+insert into t1 values ('1');
+select * from (select max(fld) from t1) as foo;
+max(fld)
+1
+drop table t1;

mysql-test/r/view.result

@@ -1923,6 +1923,14 @@ ERROR HY000: Field of view 'test.v2' underlying table doesn't have a default val
 set sql_mode=default;
 drop view v2,v1;
 drop table t1;
+create table t1 (f1 int);
+insert into t1 values (1);
+create view v1 as select f1 from t1;
+select f1 as alias from v1;
+alias
+1
+drop view v1;
+drop table t1;
 CREATE TABLE t1 (s1 int, s2 int);
 INSERT  INTO t1 VALUES (1,2);
 CREATE VIEW v1 AS SELECT s2 AS s1, s1 AS s2 FROM t1;
@@ -1937,6 +1945,25 @@ ALTER VIEW v1 AS SELECT s1 AS s1, s2 AS s2 FROM t1;
 CALL p1();
 s1	s2
 1	2
+DROP VIEW v1;
+CREATE VIEW v1 AS SELECT s2 AS s1, s1 AS s2 FROM t1;
+CALL p1();
+s1	s2
+2	1
 DROP PROCEDURE p1;
 DROP VIEW v1;
 DROP TABLE t1;
+CREATE TABLE t1 (f1 char) ENGINE = innodb;
+INSERT INTO t1 VALUES ('A');
+CREATE VIEW  v1 AS SELECT * FROM t1;
+INSERT INTO t1 VALUES('B');
+SELECT * FROM v1;
+f1
+A
+B
+SELECT * FROM t1;
+f1
+A
+B
+DROP VIEW v1;
+DROP TABLE t1;

mysql-test/t/subselect.test

@@ -1859,3 +1859,11 @@ WHERE values_id IN (SELECT values_id FROM t2
                     WHERE select_id = 0 OR select_id = 1);
 
 DROP TABLE t1, t2;
+
+# BUG#11821 : Select from subselect using aggregate function on an enum
+# segfaults:
+create table t1 (fld enum('0','1'));
+insert into t1 values ('1');
+select * from (select max(fld) from t1) as foo;
+drop table t1;
+

mysql-test/t/view.test

@@ -1762,6 +1762,16 @@ set sql_mode=default;
 drop view v2,v1;
 drop table t1;
 
+#
+# Bug#11399 Use an alias in a select statement on a view
+#
+create table t1 (f1 int);
+insert into t1 values (1);
+create view v1 as select f1 from t1;
+select f1 as alias from v1;
+drop view v1;
+drop table t1;
+
 #
 # Test for bug #6120: SP cache to be invalidated when altering a view
 #
@@ -1774,7 +1784,25 @@ CREATE PROCEDURE p1 () SELECT * FROM v1;
 CALL p1();
 ALTER VIEW v1 AS SELECT s1 AS s1, s2 AS s2 FROM t1;
 CALL p1();
+DROP VIEW v1;
+CREATE VIEW v1 AS SELECT s2 AS s1, s1 AS s2 FROM t1;
+CALL p1();
 
 DROP PROCEDURE p1;
 DROP VIEW v1;
 DROP TABLE t1;
+
+#
+# Test for bug #11771: wrong query_id in SELECT * FROM <view>
+#
+
+CREATE TABLE t1 (f1 char) ENGINE = innodb;
+INSERT INTO t1 VALUES ('A');
+CREATE VIEW  v1 AS SELECT * FROM t1;
+
+INSERT INTO t1 VALUES('B');
+SELECT * FROM v1;
+SELECT * FROM t1;
+
+DROP VIEW v1;
+DROP TABLE t1;

sql/item.cc

@@ -5421,9 +5421,13 @@ void Item_type_holder::get_full_info(Item *item)
   if (fld_type == MYSQL_TYPE_ENUM ||
       fld_type == MYSQL_TYPE_SET)
   {
+    if (item->type() == Item::SUM_FUNC_ITEM &&
+        (((Item_sum*)item)->sum_func() == Item_sum::MAX_FUNC ||
+         ((Item_sum*)item)->sum_func() == Item_sum::MIN_FUNC))
+      item = ((Item_sum*)item)->args[0];
     /*
-      We can have enum/set type after merging only if we have one enum/set
-      field and number of NULL fields
+      We can have enum/set type after merging only if we have one enum|set
+      field (or MIN|MAX(enum|set field)) and number of NULL fields
     */
     DBUG_ASSERT((enum_set_typelib &&
                  get_real_type(item) == MYSQL_TYPE_NULL) ||

sql/item.h

@@ -641,6 +641,7 @@ public:
   virtual bool cleanup_processor(byte *arg);
   virtual bool collect_item_field_processor(byte * arg) { return 0; }
   virtual bool change_context_processor(byte *context) { return 0; }
+  virtual bool reset_query_id_processor(byte *query_id) { return 0; }
 
   virtual Item *equal_fields_propagator(byte * arg) { return this; }
   virtual Item *set_no_const_sub(byte *arg) { return this; }
@@ -895,6 +896,13 @@ public:
   bool is_null() { return field->is_null(); }
   Item *get_tmp_table_item(THD *thd);
   bool collect_item_field_processor(byte * arg);
+  bool reset_query_id_processor(byte *arg)
+  {
+    field->query_id= *((query_id_t *) arg);
+    if (result_field)
+      result_field->query_id= field->query_id;
+    return 0;
+  }
   void cleanup();
   Item_equal *find_item_equal(COND_EQUAL *cond_equal);
   Item *equal_fields_propagator(byte *arg);

sql/sql_base.cc

@@ -2400,9 +2400,11 @@ Field *view_ref_found= (Field*) 0x2;
     name			name of field
     item_name                   name of item if it will be created (VIEW)
     length			length of name
-    ref				expression substituted in VIEW should be
+    ref	[in/out]		expression substituted in VIEW should be
 				  passed using this reference (return
 				  view_ref_found)
+                                  (*ref != NULL) only if *ref contains
+                                  the item that we need to replace.
     check_grants_table		do check columns grants for table?
     check_grants_view		do check columns grants for view?
     allow_rowid			do allow finding of "_rowid" field?
@@ -2440,11 +2442,6 @@ find_field_in_table(THD *thd, TABLE_LIST *table_list,
     {
       if (!my_strcasecmp(system_charset_info, field_it.name(), name))
       {
-        Item *item= field_it.create_item(thd);
-        if (!item)
-        {
-          DBUG_RETURN(0);
-        }
         if (table_list->schema_table_reformed)
         {
           /*
@@ -2463,6 +2460,19 @@ find_field_in_table(THD *thd, TABLE_LIST *table_list,
 			       name, length))
 	  DBUG_RETURN(WRONG_GRANT);
 #endif
+        Item *item= field_it.create_item(thd);
+        if (!item)
+        {
+          DBUG_RETURN(0);
+        }
+        /*
+          *ref != NULL means that *ref contains the item that we need to
+          replace. If the item was aliased by the user, set the alias to
+          the replacing item.
+         */
+        if (*ref && !(*ref)->is_autogenerated_name)
+          item->set_name((*ref)->name, (*ref)->name_length,
+                         system_charset_info);
         if (register_tree_change)
           thd->change_item_tree(ref, item);
         else
@@ -3495,6 +3505,12 @@ insert_fields(THD *thd, Name_resolution_context *context, const char *db_name,
           field->query_id=thd->query_id;
           table->used_keys.intersect(field->part_of_key);
         }
+        else
+        {
+          Item *item= ((Field_iterator_view *) iterator)->item();
+          item->walk(&Item::reset_query_id_processor,
+                     (byte *)(&thd->query_id));
+        }
       }
       /*
 	All fields are used in case if usual tables (in case of view used

sql/sql_view.cc

@@ -1004,6 +1004,7 @@ bool mysql_drop_view(THD *thd, TABLE_LIST *views, enum_drop_mode drop_mode)
     if (my_delete(path, MYF(MY_WME)))
       goto err;
     query_cache_invalidate3(thd, view, 0);
+    sp_cache_invalidate();
     VOID(pthread_mutex_unlock(&LOCK_open));
   }
   send_ok(thd);