Feed ObjectAddress to event triggers for ALTER TABLE ATTACH/DETACH

These flavors of ALTER TABLE were already shaped to report the
ObjectAddress of the partition attached or detached, but this data was
not added to what is collected for event triggers.  The tests of
test_ddl_deparse are updated to show the modification in the data
reported.

Author: Hou Zhijie
Reviewed-by: Álvaro Herrera, Amit Kapila, Hayato Kuroda, Michael Paquier
Discussion: https://postgr.es/m/OS0PR01MB571626984BD099DADF53F38394899@OS0PR01MB5716.jpnprd01.prod.outlook.com

Author: michaelpq

src/backend/commands/tablecmds.c

@@ -5202,24 +5202,24 @@ ATExecCmd(List **wqueue, AlteredTableInfo *tab,
 									  cur_pass, context);
 			Assert(cmd != NULL);
 			if (rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
-				ATExecAttachPartition(wqueue, rel, (PartitionCmd *) cmd->def,
-									  context);
+				address = ATExecAttachPartition(wqueue, rel, (PartitionCmd *) cmd->def,
+												context);
 			else
-				ATExecAttachPartitionIdx(wqueue, rel,
-										 ((PartitionCmd *) cmd->def)->name);
+				address = ATExecAttachPartitionIdx(wqueue, rel,
+												   ((PartitionCmd *) cmd->def)->name);
 			break;
 		case AT_DetachPartition:
 			cmd = ATParseTransformCmd(wqueue, tab, rel, cmd, false, lockmode,
 									  cur_pass, context);
 			Assert(cmd != NULL);
 			/* ATPrepCmd ensures it must be a table */
 			Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-			ATExecDetachPartition(wqueue, tab, rel,
-								  ((PartitionCmd *) cmd->def)->name,
-								  ((PartitionCmd *) cmd->def)->concurrent);
+			address = ATExecDetachPartition(wqueue, tab, rel,
+											((PartitionCmd *) cmd->def)->name,
+											((PartitionCmd *) cmd->def)->concurrent);
 			break;
 		case AT_DetachPartitionFinalize:
-			ATExecDetachPartitionFinalize(rel, ((PartitionCmd *) cmd->def)->name);
+			address = ATExecDetachPartitionFinalize(rel, ((PartitionCmd *) cmd->def)->name);
 			break;
 		default:				/* oops */
 			elog(ERROR, "unrecognized alter table type: %d",

src/test/modules/test_ddl_deparse/expected/alter_table.out

@@ -50,10 +50,10 @@ CREATE TABLE part2 (a int);
 NOTICE:  DDL test: type simple, tag CREATE TABLE
 ALTER TABLE part ATTACH PARTITION part2 FOR VALUES FROM (101) to (200);
 NOTICE:  DDL test: type alter table, tag ALTER TABLE
-NOTICE:    subcommand: type ATTACH PARTITION desc <NULL>
+NOTICE:    subcommand: type ATTACH PARTITION desc table part2
 ALTER TABLE part DETACH PARTITION part2;
 NOTICE:  DDL test: type alter table, tag ALTER TABLE
-NOTICE:    subcommand: type DETACH PARTITION desc <NULL>
+NOTICE:    subcommand: type DETACH PARTITION desc table part2
 DROP TABLE part2;
 ALTER TABLE part ADD PRIMARY KEY (a);
 NOTICE:  DDL test: type alter table, tag ALTER TABLE