diff --git a/contrib/test_decoding/specs/concurrent_ddl_dml.spec b/contrib/test_decoding/specs/concurrent_ddl_dml.spec
index e7cea37d30..d16515e6f4 100644
--- a/contrib/test_decoding/specs/concurrent_ddl_dml.spec
+++ b/contrib/test_decoding/specs/concurrent_ddl_dml.spec
@@ -19,7 +19,6 @@ setup { SET synchronous_commit=on; }
 step "s1_init" { SELECT 'init' FROM pg_create_logical_replication_slot('isolation_slot', 'test_decoding'); }
 step "s1_begin" { BEGIN; }
 step "s1_insert_tbl1" { INSERT INTO tbl1 (val1, val2) VALUES (1, 1); }
-step "s1_insert_tbl1_3col" { INSERT INTO tbl1 (val1, val2, val3) VALUES (1, 1, 1); }
 step "s1_insert_tbl2" { INSERT INTO tbl2 (val1, val2) VALUES (1, 1); }
 step "s1_insert_tbl2_3col" { INSERT INTO tbl2 (val1, val2, val3) VALUES (1, 1, 1); }
 step "s1_commit" { COMMIT; }
@@ -29,15 +28,8 @@ setup { SET synchronous_commit=on; }
 
 step "s2_alter_tbl1_float" { ALTER TABLE tbl1 ALTER COLUMN val2 TYPE float; }
 step "s2_alter_tbl1_char" { ALTER TABLE tbl1 ALTER COLUMN val2 TYPE character varying; }
-step "s2_alter_tbl1_text" { ALTER TABLE tbl1 ALTER COLUMN val2 TYPE text; }
 step "s2_alter_tbl1_boolean" { ALTER TABLE tbl1 ALTER COLUMN val2 TYPE boolean; }
 
-step "s2_alter_tbl1_add_int" { ALTER TABLE tbl1 ADD COLUMN val3 INTEGER; }
-step "s2_alter_tbl1_add_float" { ALTER TABLE tbl1 ADD COLUMN val3 FLOAT; }
-step "s2_alter_tbl1_add_char" { ALTER TABLE tbl1 ADD COLUMN val3 character varying; }
-step "s2_alter_tbl1_add_boolean" { ALTER TABLE tbl1 ADD COLUMN val3 BOOLEAN; }
-step "s2_alter_tbl1_add_text" { ALTER TABLE tbl1 ADD COLUMN val3 TEXT; }
-
 step "s2_alter_tbl2_float" { ALTER TABLE tbl2 ALTER COLUMN val2 TYPE float; }
 step "s2_alter_tbl2_char" { ALTER TABLE tbl2 ALTER COLUMN val2 TYPE character varying; }
 step "s2_alter_tbl2_text" { ALTER TABLE tbl2 ALTER COLUMN val2 TYPE text; }
@@ -46,7 +38,6 @@ step "s2_alter_tbl2_boolean" { ALTER TABLE tbl2 ALTER COLUMN val2 TYPE boolean;
 step "s2_alter_tbl2_add_int" { ALTER TABLE tbl2 ADD COLUMN val3 INTEGER; }
 step "s2_alter_tbl2_add_float" { ALTER TABLE tbl2 ADD COLUMN val3 FLOAT; }
 step "s2_alter_tbl2_add_char" { ALTER TABLE tbl2 ADD COLUMN val3 character varying; }
-step "s2_alter_tbl2_add_boolean" { ALTER TABLE tbl2 ADD COLUMN val3 BOOLEAN; }
 step "s2_alter_tbl2_add_text" { ALTER TABLE tbl2 ADD COLUMN val3 TEXT; }
 step "s2_alter_tbl2_drop_3rd_col" { ALTER TABLE tbl2 DROP COLUMN val3; }
 step "s2_alter_tbl2_3rd_char" { ALTER TABLE tbl2 ALTER COLUMN val3 TYPE character varying; }
diff --git a/contrib/test_decoding/specs/snapshot_transfer.spec b/contrib/test_decoding/specs/snapshot_transfer.spec
index 8fb70e6567..ae81e8f102 100644
--- a/contrib/test_decoding/specs/snapshot_transfer.spec
+++ b/contrib/test_decoding/specs/snapshot_transfer.spec
@@ -26,7 +26,6 @@ step "s0_sub_get_base_snap" { INSERT INTO dummy VALUES (0); }
 step "s0_insert" { INSERT INTO harvest VALUES (1, 2, 3); }
 step "s0_end_sub0" { RELEASE SAVEPOINT s0; }
 step "s0_end_sub1" { RELEASE SAVEPOINT s1; }
-step "s0_insert2" { INSERT INTO harvest VALUES (1, 2, 3, 4); }
 step "s0_commit" { COMMIT; }
 step "s0_get_changes" { SELECT data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1'); }