Merge bk-internal.mysql.com:/home/bk/mysql-5.1-new-maint

into  recycle.(none):/src/bug23491/my51-bug23491

mysql-test/r/information_schema.result

@@ -706,7 +706,7 @@ Warnings:
 Warning	1356	View 'test.v2' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
 show create table v3;
 View	Create View
-v3	CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v3` AS select `test`.`sub1`(1) AS `c`
+v3	CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v3` AS select `sub1`(1) AS `c`
 Warnings:
 Warning	1356	View 'test.v3' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
 drop view v2;

mysql-test/r/mysqldump.result

@@ -3205,6 +3205,29 @@ INSERT INTO t1 VALUES(1,0xff00fef0);
 </mysqldump>
 DROP TABLE t1;
 #
+# Bug #23491: MySQLDump prefix function call in a view by database name
+#
+create database bug23491_original;
+create database bug23491_restore;
+use bug23491_original;
+create table t1 (c1 int);
+create view v1 as select * from t1;
+create procedure p1() select 1;
+create function f1() returns int return 1;
+create view v2 as select f1();
+create function f2() returns int return f1();
+create view v3 as select bug23491_original.f1();
+use bug23491_restore;
+show create view bug23491_restore.v2;
+View	Create View
+v2	CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v2` AS select `f1`() AS `f1()`
+show create view bug23491_restore.v3;
+View	Create View
+v3	CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v3` AS select `bug23491_original`.`f1`() AS `bug23491_original.f1()`
+drop database bug23491_original;
+drop database bug23491_restore;
+use test;
+#
 # Bug#26346:  	stack + buffer overrun in mysqldump
 #
 CREATE TABLE t1(a int);

mysql-test/r/sp-code.result

@@ -187,7 +187,7 @@ Pos	Instruction
 32	set v_dig@4 (v_dig@4 + 1)
 33	stmt 4 "update sudoku_work set dig = v_dig wh..."
 34	set v_tcounter@6 (v_tcounter@6 + 1)
-35	jump_if_not 37(37) (not(`test`.`sudoku_digit_ok`(v_row@7,v_col@8,v_dig@4)))
+35	jump_if_not 37(37) (not(`sudoku_digit_ok`(v_row@7,v_col@8,v_dig@4)))
 36	jump 15
 37	set v_i@3 (v_i@3 + 1)
 38	jump 15

mysql-test/r/udf.result

@@ -159,7 +159,7 @@ EXPLAIN EXTENDED SELECT myfunc_int(fn(MIN(b))) as c FROM t1 GROUP BY a;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using temporary; Using filesort
 Warnings:
-Note	1003	select myfunc_int(`test`.`fn`(min(`test`.`t1`.`b`)) AS `fn(MIN(b))`) AS `c` from `test`.`t1` group by `test`.`t1`.`a`
+Note	1003	select myfunc_int(`fn`(min(`test`.`t1`.`b`)) AS `fn(MIN(b))`) AS `c` from `test`.`t1` group by `test`.`t1`.`a`
 EXPLAIN EXTENDED SELECT myfunc_int(test.fn(MIN(b))) as c FROM t1 GROUP BY a;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using temporary; Using filesort

mysql-test/t/mysqldump.test

@@ -1465,6 +1465,38 @@ CREATE TABLE t1 (a int) ENGINE=merge UNION=(t2, t3);
 --exec $MYSQL_DUMP --skip-comments -c test
 DROP TABLE t1, t2, t3;
 
+--echo #
+--echo # Bug #23491: MySQLDump prefix function call in a view by database name
+--echo #
+
+# Setup
+create database bug23491_original;
+create database bug23491_restore;
+use bug23491_original;
+create table t1 (c1 int);
+create view v1 as select * from t1;
+create procedure p1() select 1;
+create function f1() returns int return 1;
+create view v2 as select f1();
+create function f2() returns int return f1();
+create view v3 as select bug23491_original.f1();
+
+# Backup.
+--exec $MYSQL_DUMP --skip-comments -uroot --opt --routines bug23491_original > $MYSQLTEST_VARDIR/tmp/bug23491_backup.sql;
+
+# Restore.
+--exec $MYSQL bug23491_restore < $MYSQLTEST_VARDIR/tmp/bug23491_backup.sql;
+
+# Verify
+use bug23491_restore;
+show create view bug23491_restore.v2;
+show create view bug23491_restore.v3;
+
+# Cleanup
+drop database bug23491_original;
+drop database bug23491_restore;
+use test;
+
 --echo #
 --echo # End of 5.0 tests
 --echo #

sql/item_create.cc

@@ -167,7 +167,7 @@ class Create_sp_func : public Create_qfunc
 {
 public:
   virtual Item* create(THD *thd, LEX_STRING db, LEX_STRING name,
-                       List<Item> *item_list);
+                       bool use_explicit_name, List<Item> *item_list);
 
   static Create_sp_func s_singleton;
 
@@ -2316,7 +2316,7 @@ Create_qfunc::create(THD *thd, LEX_STRING name, List<Item> *item_list)
   if (thd->copy_db_to(&db.str, &db.length))
     return NULL;
 
-  return create(thd, db, name, item_list);
+  return create(thd, db, name, false, item_list);
 }
 
 
@@ -2433,7 +2433,7 @@ Create_sp_func Create_sp_func::s_singleton;
 
 Item*
 Create_sp_func::create(THD *thd, LEX_STRING db, LEX_STRING name,
-                       List<Item> *item_list)
+                       bool use_explicit_name, List<Item> *item_list)
 {
   int arg_count= 0;
   Item *func= NULL;
@@ -2458,7 +2458,7 @@ Create_sp_func::create(THD *thd, LEX_STRING db, LEX_STRING name,
   if (item_list != NULL)
     arg_count= item_list->elements;
 
-  qname= new (thd->mem_root) sp_name(db, name);
+  qname= new (thd->mem_root) sp_name(db, name, use_explicit_name);
   qname->init_qname(thd);
   sp_add_used_routine(lex, thd, qname, TYPE_ENUM_FUNCTION);
 

sql/item_create.h

@@ -87,11 +87,12 @@ class Create_qfunc : public Create_func
     @param thd The current thread
     @param db The database name
     @param name The function name
+    @param use_explicit_name Should the function be represented as 'db.name'?
     @param item_list The list of arguments to the function, can be NULL
     @return An item representing the parsed function call
   */
   virtual Item* create(THD *thd, LEX_STRING db, LEX_STRING name,
-                       List<Item> *item_list) = 0;
+                       bool use_explicit_name, List<Item> *item_list) = 0;
 
 protected:
   /** Constructor. */

sql/item_func.cc

@@ -5030,7 +5030,7 @@ Item_func_sp::func_name() const
 {
   THD *thd= current_thd;
   /* Calculate length to avoid reallocation of string for sure */
-  uint len= ((m_name->m_db.length +
+  uint len= ((m_name->m_explicit_name ? m_name->m_db.length : 0 +
               m_name->m_name.length)*2 + //characters*quoting
              2 +                         // ` and `
              1 +                         // .
@@ -5040,8 +5040,11 @@ Item_func_sp::func_name() const
                system_charset_info);
 
   qname.length(0);
-  append_identifier(thd, &qname, m_name->m_db.str, m_name->m_db.length);
-  qname.append('.');
+  if (m_name->m_explicit_name)
+  {
+    append_identifier(thd, &qname, m_name->m_db.str, m_name->m_db.length);
+    qname.append('.');
+  }
   append_identifier(thd, &qname, m_name->m_name.str, m_name->m_name.length);
   return qname.ptr();
 }

sql/sp.cc

@@ -1041,7 +1041,7 @@ sp_exist_routines(THD *thd, TABLE_LIST *routines, bool any, bool no_error)
     lex_name.length= strlen(routine->table_name);
     lex_db.str= thd->strmake(routine->db, lex_db.length);
     lex_name.str= thd->strmake(routine->table_name, lex_name.length);
-    name= new sp_name(lex_db, lex_name);
+    name= new sp_name(lex_db, lex_name, true);
     name->init_qname(thd);
     sp_object_found= sp_find_routine(thd, TYPE_ENUM_PROCEDURE, name,
                                      &thd->sp_proc_cache, FALSE) != NULL ||

sql/sp_head.h

@@ -59,9 +59,10 @@ class sp_name : public Sql_alloc
     calling set_routine_type().
   */
   LEX_STRING m_sroutines_key;
+  bool       m_explicit_name;                   /**< Prepend the db name? */
 
-  sp_name(LEX_STRING db, LEX_STRING name)
-    : m_db(db), m_name(name)
+  sp_name(LEX_STRING db, LEX_STRING name, bool use_explicit_name)
+    : m_db(db), m_name(name), m_explicit_name(use_explicit_name)
   {
     m_qname.str= m_sroutines_key.str= 0;
     m_qname.length= m_sroutines_key.length= 0;
@@ -79,6 +80,7 @@ class sp_name : public Sql_alloc
     m_name.length= m_qname.length= key_len - 1;
     m_db.str= 0;
     m_db.length= 0;
+    m_explicit_name= false;
   }
 
   // Init. the qualified name from the db and name.

sql/sql_yacc.yy

@@ -1931,7 +1931,7 @@ sp_name:
 	      my_error(ER_SP_WRONG_NAME, MYF(0), $3.str);
 	      MYSQL_YYABORT;
 	    }
-	    $$= new sp_name($1, $3);
+	    $$= new sp_name($1, $3, true);
 	    $$->init_qname(YYTHD);
 	  }
 	| ident
@@ -1945,7 +1945,7 @@ sp_name:
 	    }
             if (thd->copy_db_to(&db.str, &db.length))
               MYSQL_YYABORT;
-	    $$= new sp_name(db, $1);
+	    $$= new sp_name(db, $1, false);
             if ($$)
 	      $$->init_qname(YYTHD);
 	  }
@@ -6923,7 +6923,7 @@ function_call_generic:
 
           builder= find_qualified_function_builder(thd);
           DBUG_ASSERT(builder);
-          item= builder->create(thd, $1, $3, $5);
+          item= builder->create(thd, $1, $3, true, $5);
 
           if (! ($$= item))
           {