Fix in_memory regression tests according to query become working for some reason.

Author: Alexander Korotkov

contrib/in_memory/expected/in_memory.out

@@ -1281,10 +1281,7 @@ SELECT * FROM test_part;
 INSERT INTO im_test1 VALUES (12, 'hello');
 ERROR:  new row for relation "im_test1" violates partition constraint
 DETAIL:  Failing row contains (12, hello).
--- XXX: fails currently cause junk columns are not filled
---      should fail cause there is no partition for id
 UPDATE test_part SET id = 12 WHERE id = 3;
-ERROR:  could not find junk imfdwkey$0 column
 -- fails because of partition constraint
 UPDATE im_test1 SET id = 13 WHERE id = 4;
 ERROR:  new row for relation "im_test1" violates partition constraint

contrib/in_memory/expected/in_memory_1.out

@@ -1281,10 +1281,7 @@ SELECT * FROM test_part;
 INSERT INTO im_test1 VALUES (12, 'hello');
 ERROR:  new row for relation "im_test1" violates partition constraint
 DETAIL:  Failing row contains (12, hello).
--- XXX: fails currently cause junk columns are not filled
---      should fail cause there is no partition for id
 UPDATE test_part SET id = 12 WHERE id = 3;
-ERROR:  could not find junk imfdwkey$0 column
 -- fails because of partition constraint
 UPDATE im_test1 SET id = 13 WHERE id = 4;
 ERROR:  new row for relation "im_test1" violates partition constraint

contrib/in_memory/expected/in_memory_2.out

@@ -1281,10 +1281,7 @@ SELECT * FROM test_part;
 INSERT INTO im_test1 VALUES (12, 'hello');
 ERROR:  new row for relation "im_test1" violates partition constraint
 DETAIL:  Failing row contains (12, hello).
--- XXX: fails currently cause junk columns are not filled
---      should fail cause there is no partition for id
 UPDATE test_part SET id = 12 WHERE id = 3;
-ERROR:  could not find junk imfdwkey$0 column
 -- fails because of partition constraint
 UPDATE im_test1 SET id = 13 WHERE id = 4;
 ERROR:  new row for relation "im_test1" violates partition constraint

contrib/in_memory/sql/in_memory.sql

@@ -244,8 +244,6 @@ ALTER TABLE test_part ATTACH PARTITION im_test1 FOR VALUES FROM (1) TO (10);
 SELECT * FROM test_part;
 -- fails because of partition constraint
 INSERT INTO im_test1 VALUES (12, 'hello');
--- XXX: fails currently cause junk columns are not filled
---      should fail cause there is no partition for id
 UPDATE test_part SET id = 12 WHERE id = 3;
 -- fails because of partition constraint
 UPDATE im_test1 SET id = 13 WHERE id = 4;