*** a/contrib/postgres_fdw/expected/postgres_fdw.out
--- b/contrib/postgres_fdw/expected/postgres_fdw.out
***************
*** 2591,2596 **** CONTEXT:  column "c8" of foreign table "ft1"
--- 2591,2599 ----
  SELECT  ft1.c1,  ft2.c2, ft1.c8 FROM ft1, ft2 WHERE ft1.c1 = ft2.c1 AND ft1.c1 = 1; -- ERROR
  ERROR:  invalid input syntax for integer: "foo"
  CONTEXT:  column "c8" of foreign table "ft1"
+ SELECT  ft1.c1,  ft2.c2, ft1 FROM ft1, ft2 WHERE ft1.c1 = ft2.c1 AND ft1.c1 = 1; -- ERROR
+ ERROR:  invalid input syntax for integer: "foo"
+ CONTEXT:  column "whole-row reference" of foreign table "ft1"
  ALTER FOREIGN TABLE ft1 ALTER COLUMN c8 TYPE user_enum;
  -- ===================================================================
  -- subtransaction
*** a/contrib/postgres_fdw/postgres_fdw.c
--- b/contrib/postgres_fdw/postgres_fdw.c
***************
*** 4560,4567 **** conversion_error_callback(void *arg)
  		Assert(IsA(var, Var));
  
  		rte = rt_fetch(var->varno, estate->es_range_table);
  		relname = get_rel_name(rte->relid);
- 		attname = get_relid_attribute_name(rte->relid, var->varattno);
  	}
  
  	if (attname && relname)
--- 4560,4572 ----
  		Assert(IsA(var, Var));
  
  		rte = rt_fetch(var->varno, estate->es_range_table);
+ 
+ 		if (var->varattno != 0)
+ 			attname = get_relid_attribute_name(rte->relid, var->varattno);
+ 		else
+ 			attname = "whole-row reference";
+ 
  		relname = get_rel_name(rte->relid);
  	}
  
  	if (attname && relname)
*** a/contrib/postgres_fdw/sql/postgres_fdw.sql
--- b/contrib/postgres_fdw/sql/postgres_fdw.sql
***************
*** 627,632 **** DROP FUNCTION f_test(int);
--- 627,633 ----
  ALTER FOREIGN TABLE ft1 ALTER COLUMN c8 TYPE int;
  SELECT * FROM ft1 WHERE c1 = 1;  -- ERROR
  SELECT  ft1.c1,  ft2.c2, ft1.c8 FROM ft1, ft2 WHERE ft1.c1 = ft2.c1 AND ft1.c1 = 1; -- ERROR
+ SELECT  ft1.c1,  ft2.c2, ft1 FROM ft1, ft2 WHERE ft1.c1 = ft2.c1 AND ft1.c1 = 1; -- ERROR
  ALTER FOREIGN TABLE ft1 ALTER COLUMN c8 TYPE user_enum;
  
  -- ===================================================================