Manual merge

mysql-test/r/sp.result:
  Manual merge.
  - lowercase 'default' changes to uppercase 'DEFAULT'
sql/item_func.cc:
  Manual merge
  - shared tables is handled differently in 5.1.
  - Use of LEX_STRING instead of char*.
  - Dummy table allocated differently.

mysql-test/r/sp.result

@@ -5899,16 +5899,16 @@ insert into examplebug20777 values (1, 9223372036854775806, 9223372036854775807,
 show create table examplebug20777;
 Table	Create Table
 examplebug20777	CREATE TABLE `examplebug20777` (
-  `i` int(1) NOT NULL default '0',
-  `2**63-2` bigint(20) unsigned default NULL,
-  `2**63-1` bigint(20) unsigned default NULL,
-  `2**63` bigint(20) unsigned default NULL,
-  `2**63+1` bigint(20) unsigned default NULL,
-  `2**64-2` bigint(20) unsigned default NULL,
-  `2**64-1` bigint(20) unsigned default NULL,
-  `2**64` bigint(20) unsigned default NULL,
-  `0` bigint(20) unsigned default NULL,
-  `-1` bigint(20) unsigned default NULL
+  `i` int(1) NOT NULL DEFAULT '0',
+  `2**63-2` bigint(20) unsigned DEFAULT NULL,
+  `2**63-1` bigint(20) unsigned DEFAULT NULL,
+  `2**63` bigint(20) unsigned DEFAULT NULL,
+  `2**63+1` bigint(20) unsigned DEFAULT NULL,
+  `2**64-2` bigint(20) unsigned DEFAULT NULL,
+  `2**64-1` bigint(20) unsigned DEFAULT NULL,
+  `2**64` bigint(20) unsigned DEFAULT NULL,
+  `0` bigint(20) unsigned DEFAULT NULL,
+  `-1` bigint(20) unsigned DEFAULT NULL
 ) ENGINE=MyISAM DEFAULT CHARSET=latin1
 select * from examplebug20777 order by i;
 i	2**63-2	2**63-1	2**63	2**63+1	2**64-2	2**64-1	2**64	0	-1

sql/item_func.cc

@@ -5009,7 +5009,7 @@ Item_func_sp::cleanup()
     sp_result_field= NULL;
   }
   m_sp= NULL;
-  dummy_table->s= NULL;
+  dummy_table->alias= NULL;
   Item_func::cleanup();
 }
 
@@ -5057,13 +5057,13 @@ bool
 Item_func_sp::init_result_field(THD *thd)
 {
   DBUG_ENTER("Item_func_sp::init_result_field");
+
+  LEX_STRING empty_name= { STRING_WITH_LEN("") };
   
-  char *empty_name= (char *) "";
   TABLE_SHARE *share;
 
   DBUG_ASSERT(m_sp == NULL);
   DBUG_ASSERT(sp_result_field == NULL);
-  DBUG_ASSERT(dummy_table->s == NULL);  
 
   if (!(m_sp= sp_find_routine(thd, TYPE_ENUM_FUNCTION, m_name,
                                &thd->sp_func_cache, TRUE)))
@@ -5078,8 +5078,9 @@ Item_func_sp::init_result_field(THD *thd)
      Below we "create" a dummy table by initializing 
      the needed pointers.
    */
-  dummy_table->s= share= &dummy_table->share_not_to_be_used;
-  dummy_table->alias = empty_name;
+  
+  share= dummy_table->s;
+  dummy_table->alias = "";
   dummy_table->maybe_null = maybe_null;
   dummy_table->in_use= thd;
   dummy_table->copy_blobs= TRUE;