AsWKB() function has been added.

mysql-test/r/gis.result

@@ -43,7 +43,7 @@ INSERT INTO pt VALUES
 (101, PointFromText('POINT(10 10)')),
 (102, PointFromText('POINT(20 10)')),
 (103, PointFromText('POINT(20 20)')),
-(104, PointFromText('POINT(10 20)'));
+(104, PointFromWKB(AsWKB(PointFromText('POINT(10 20)'))));
 INSERT INTO ls VALUES
 (105, LineFromText('LINESTRING(0 0,0 10,10 0)')),
 (106, LineStringFromText('LINESTRING(10 10,20 10,20 20,10 20,10 10)')),
@@ -388,3 +388,6 @@ gc	geometrycollection	binary	YES		NULL
 gm	geometry	binary	YES		NULL	
 fid	int(11)	binary			0	
 DROP TABLE g1;
+SELECT AsText(GeometryFromWKB(AsWKB(GeometryFromText('POINT(1 4)'))));
+AsText(GeometryFromWKB(AsWKB(GeometryFromText('POINT(1 4)'))))
+POINT(1 4)

mysql-test/t/gis.test

@@ -29,7 +29,7 @@ INSERT INTO pt VALUES
 (101, PointFromText('POINT(10 10)')),
 (102, PointFromText('POINT(20 10)')),
 (103, PointFromText('POINT(20 20)')),
-(104, PointFromText('POINT(10 20)'));
+(104, PointFromWKB(AsWKB(PointFromText('POINT(10 20)'))));
 
 INSERT INTO ls VALUES
 (105, LineFromText('LINESTRING(0 0,0 10,10 0)')),
@@ -140,3 +140,5 @@ SHOW FIELDS FROM g1;
 ALTER TABLE g1 ADD fid INT NOT NULL;
 SHOW FIELDS FROM g1;
 DROP TABLE g1;
+
+SELECT AsText(GeometryFromWKB(AsWKB(GeometryFromText('POINT(1 4)'))));

sql/item_create.cc

@@ -491,6 +491,11 @@ Item *create_func_as_text(Item *a)
   return new Item_func_as_text(a);
 }
 
+Item *create_func_as_wkb(Item *a)
+{
+  return new Item_func_as_wkb(a);
+}
+
 Item *create_func_srid(Item *a)
 {
   return new Item_func_srid(a);

sql/item_create.h

@@ -105,6 +105,7 @@ Item *create_func_quote(Item* a);
 
 Item *create_func_geometry_from_text(Item *a);
 Item *create_func_as_text(Item *a);
+Item *create_func_as_wkb(Item *a);
 Item *create_func_srid(Item *a);
 Item *create_func_startpoint(Item *a);
 Item *create_func_endpoint(Item *a);

sql/item_strfunc.cc

@@ -2585,6 +2585,27 @@ void Item_func_as_text::fix_length_and_dec()
   max_length=MAX_BLOB_WIDTH;
 }
 
+String *Item_func_as_wkb::val_str(String *str)
+{
+  String arg_val;
+  String *swkb= args[0]->val_str(&arg_val);
+  Geometry geom;
+
+  if ((null_value= (args[0]->null_value ||
+		    geom.create_from_wkb(swkb->ptr() + SRID_SIZE,
+					 swkb->length() - SRID_SIZE))))
+    return 0;
+
+  str->copy(swkb->ptr() + SRID_SIZE, swkb->length() - SRID_SIZE,
+	    &my_charset_bin);
+  return str;
+}
+
+void Item_func_as_wkb::fix_length_and_dec()
+{
+  max_length= MAX_BLOB_WIDTH;
+}
+
 String *Item_func_geometry_type::val_str(String *str)
 {
   String *swkb= args[0]->val_str(str);

sql/item_strfunc.h

@@ -665,6 +665,15 @@ public:
   void fix_length_and_dec();
 };
 
+class Item_func_as_wkb :public Item_str_func
+{
+public:
+  Item_func_as_wkb(Item *a) :Item_str_func(a) {}
+  const char *func_name() const { return "aswkb"; }
+  String *val_str(String *);
+  void fix_length_and_dec();
+};
+
 class Item_func_geometry_type :public Item_str_func
 {
 public:

sql/lex.h

@@ -429,6 +429,7 @@ static SYMBOL sql_functions[] = {
   { "AREA",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_area)},
   { "ASIN",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_asin)},
   { "ASTEXT",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_as_text)},
+  { "ASWKB",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_as_wkb)},
   { "ATAN",		SYM(ATAN),0,0},
   { "ATAN2",		SYM(ATAN),0,0},
   { "BENCHMARK",	SYM(BENCHMARK_SYM),0,0},