new syntax:

  CREATE TABLE ...(SELECT ...) UNION ...
  INSERT ...      (SELECT ...) UNION ...

sql/sql_yacc.yy

@@ -803,18 +803,35 @@ create:
 	  };
 
 create2:
-	'(' field_list ')' opt_create_table_options create3 {}
+	'(' create2a {}
 	| opt_create_table_options create3 {};
 
+create2a:
+        field_list ')' opt_create_table_options create3 {}
+	|  create_select ')' { Select->braces= 1;} union_opt {}
+        ;
+
 create3:
 	/* empty */ {}
-	| opt_duplicate opt_as SELECT_SYM
+	| opt_duplicate opt_as     create_select
+          { Select->braces= 0;} opt_union {}
+	| opt_duplicate opt_as '(' create_select ')'
+          { Select->braces= 1;} union_opt {}
+        ;
+
+create_select:
+          SELECT_SYM
           {
 	    LEX *lex=Lex;
 	    lex->lock_option= (using_update_log) ? TL_READ_NO_INSERT : TL_READ;
+            switch(lex->sql_command) {
+              case SQLCOM_INSERT: lex->sql_command=SQLCOM_INSERT_SELECT; break;
+              case SQLCOM_REPLACE: lex->sql_command=SQLCOM_REPLACE_SELECT; break;
+            }
 	    mysql_init_select(lex);
           }
-          select_options select_item_list opt_select_from opt_union {};
+          select_options select_item_list opt_select_from
+          ;
 
 opt_as:
 	/* empty */ {}
@@ -2613,7 +2630,9 @@ insert_table:
 	};
 
 insert_field_spec:
-	opt_field_spec insert_values {}
+	insert_values {}
+	| '(' ')' insert_values {}
+	| '(' fields ')' insert_values {}
 	| SET
 	  {
 	    LEX *lex=Lex;
@@ -2634,16 +2653,9 @@ fields:
 
 insert_values:
 	VALUES	values_list  {}
-	| SELECT_SYM
-	  {
-	    LEX *lex=Lex;
-	    lex->sql_command = (lex->sql_command == SQLCOM_INSERT ?
-				SQLCOM_INSERT_SELECT : SQLCOM_REPLACE_SELECT);
-	    lex->lock_option= (using_update_log) ? TL_READ_NO_INSERT : TL_READ;
-	    mysql_init_select(lex);
-	  }
-	  select_options select_item_list select_from select_lock_type
-          opt_union {};
+	|     create_select     { Select->braces= 0;} opt_union {}
+	| '(' create_select ')' { Select->braces= 1;} union_opt {}
+        ;
 
 values_list:
 	values_list ','  no_braces