Merge bk-internal.mysql.com:/data0/bk/mysql-5.1

into  bk-internal.mysql.com:/data0/bk/mysql-5.1-opt


libmysqld/lib_sql.cc:
  Auto merged
sql/item.cc:
  Auto merged

mysql-test/r/default.result

@@ -193,6 +193,16 @@ a	b	c	d	e	f	g	h	i	x
 two	large	00:00:05	0007-01-01	11	13	17	0019-01-01 00:00:00	23	1
 	small	00:00:00	0000-00-00	0			0000-00-00 00:00:00	0	2
 two	large	00:00:05	0007-01-01	11	13	17	0019-01-01 00:00:00	23	3
-	small	00:00:00	0000-00-00	0			0000-00-00 00:00:00	0	4
+		00:00:00	0000-00-00	0			0000-00-00 00:00:00	0	4
 drop table bug20691;
+create table t1 (id int not null);
+insert into t1 values(default);
+Warnings:
+Warning	1364	Field 'id' doesn't have a default value
+create view v1 (c) as select id from t1;
+insert into t1 values(default);
+Warnings:
+Warning	1364	Field 'id' doesn't have a default value
+drop view v1;
+drop table t1;
 End of 5.0 tests.

mysql-test/r/gis.result

@@ -718,6 +718,10 @@ desc t1;
 Field	Type	Null	Key	Default	Extra
 GeomFromText('point(1 1)')	geometry	NO			
 drop table t1;
+create table t1 (g geometry not null);
+insert into t1 values(default);
+ERROR 22003: Cannot get geometry object from data you send to the GEOMETRY field
+drop table t1;
 create table t1 (f1 tinyint(1), f2 char(1), f3 varchar(1), f4 geometry, f5 datetime);
 create view v1 as select * from t1;
 desc v1;

mysql-test/t/default.test

@@ -137,6 +137,13 @@ insert into bug20691 values (DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAUL
 select * from bug20691 order by x asc;
 drop table bug20691;
 
-###
+create table t1 (id int not null);
+insert into t1 values(default);
+
+create view v1 (c) as select id from t1;
+insert into t1 values(default);
+drop view v1;
+drop table t1;
+
 --echo End of 5.0 tests.
 

mysql-test/t/gis.test

@@ -429,6 +429,14 @@ create table t1 select GeomFromText('point(1 1)');
 desc t1;
 drop table t1;
 
+#
+# Bug #20691 (DEFAULT over NOT NULL field)
+#
+create table t1 (g geometry not null);
+--error ER_CANT_CREATE_GEOMETRY_OBJECT
+insert into t1 values(default);
+drop table t1;
+
 #
 # Bug #11335 View redefines column types
 #

sql/item.cc

@@ -5591,6 +5591,13 @@ int Item_default_value::save_in_field(Field *field_arg, bool no_conversions)
   {
     if (field_arg->flags & NO_DEFAULT_VALUE_FLAG)
     {
+      if (field_arg->reset())
+      {
+        my_message(ER_CANT_CREATE_GEOMETRY_OBJECT,
+                   ER(ER_CANT_CREATE_GEOMETRY_OBJECT), MYF(0));
+        return -1;
+      }
+
       if (context->error_processor == &view_error_processor)
       {
         TABLE_LIST *view= cached_table->top_table();
@@ -5609,7 +5616,6 @@ int Item_default_value::save_in_field(Field *field_arg, bool no_conversions)
                             ER(ER_NO_DEFAULT_FOR_FIELD),
                             field_arg->field_name);
       }
-      field_arg->set_default();
       return 1;
     }
     field_arg->set_default();