Fix after merge

sql/item.cc

@@ -622,6 +622,28 @@ int Item_field::save_in_field(Field *to)
 }
 
 
+/*
+  Store null in field
+
+  SYNOPSIS
+    save_in_field()
+    field		Field where we want to store NULL
+
+  DESCRIPTION
+    This is used on INSERT.
+    Allow NULL to be inserted in timestamp and auto_increment values
+
+  RETURN VALUES
+    0	 ok
+    1	 Field doesn't support NULL values and can't handle 'field = NULL'
+*/   
+
+int Item_null::save_in_field(Field *field)
+{
+  return set_field_to_null_with_conversions(field);
+}
+
+
 /*
   Store null in field
 

sql/item.h

@@ -56,7 +56,7 @@ class Item {
   virtual int  save_in_field(Field *field);
   virtual void save_org_in_field(Field *field)
     { (void) save_in_field(field); }
-  virtual bool save_safe_in_field(Field *field)
+  virtual int save_safe_in_field(Field *field)
     { return save_in_field(field); }
   virtual bool send(THD *thd, String *str);
   virtual bool eq(const Item *, bool binary_cmp) const;
@@ -155,7 +155,7 @@ class Item_null :public Item
   longlong val_int();
   String *val_str(String *str);
   void make_field(Send_field *field);
-  int  save_in_field(Field *field);
+  int save_in_field(Field *field);
   int save_safe_in_field(Field *field);
   enum Item_result result_type () const
   { return STRING_RESULT; }

sql/mysqld.cc

@@ -3323,7 +3323,6 @@ struct my_option my_long_options[] =
   {"transaction-isolation", OPT_TX_ISOLATION,
    "Default transaction isolation level", 0, 0, 0, GET_STR, REQUIRED_ARG, 0,
    0, 0, 0, 0, 0},
-   0, 0, 0, 0, 0},
   {"external-locking", OPT_USE_LOCKING, "Use system (external) locking.  With this option enabled you can run myisamchk to test (not repair) tables while the MySQL server is running",
    (gptr*) &opt_external_locking, (gptr*) &opt_external_locking,
    0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},

sql/sql_select.cc

@@ -976,8 +976,8 @@ JOIN::exec()
 	  We can abort sorting after thd->select_limit rows if we there is no
 	  WHERE clause for any tables after the sorted one.
 	*/
-	JOIN_TAB *table= &join_tab[join.const_tables+1];
-	JOIN_TAB *end_table= &join_tab[join.tables];
+	JOIN_TAB *table= &join_tab[const_tables+1];
+	JOIN_TAB *end_table= &join_tab[tables];
 	for (; table < end_table ; table++)
 	{
 	  if (table->select_cond)