*** a/src/test/regress/expected/update.out
--- b/src/test/regress/expected/update.out
***************
*** 87,90 **** ERROR:  invalid reference to FROM-clause entry for table "update_test"
--- 87,99 ----
  LINE 1: UPDATE update_test AS t SET b = update_test.b + 10 WHERE t.a...
                                          ^
  HINT:  Perhaps you meant to reference the table alias "t".
+ -- Make sure that we can update to a TOASTed value.
+ UPDATE update_test SET c = repeat('x', 10000) WHERE c = 'car';
+ SELECT a, b, char_length(c) FROM update_test;
+   a  | b  | char_length 
+ -----+----+-------------
+  100 | 20 |            
+   11 | 41 |       10000
+ (2 rows)
+ 
  DROP TABLE update_test;
*** a/src/test/regress/sql/update.sql
--- b/src/test/regress/sql/update.sql
***************
*** 54,57 **** UPDATE update_test SET (a,b) = (select a,b FROM update_test where c = 'foo')
--- 54,61 ----
  -- to the original table name
  UPDATE update_test AS t SET b = update_test.b + 10 WHERE t.a = 10;
  
+ -- Make sure that we can update to a TOASTed value.
+ UPDATE update_test SET c = repeat('x', 10000) WHERE c = 'car';
+ SELECT a, b, char_length(c) FROM update_test;
+ 
  DROP TABLE update_test;