get_object_address: separate domain constraints from table constraints

Apart from enabling comments on domain constraints, this enables a
future project to replicate object dropping to remote servers: with the
current mechanism there's no way to distinguish between the two types of
constraints, so there's no way to know what to drop.

Also added support for the domain constraint comments in psql's \dd and
pg_dump.

Catalog version bumped due to the change in ObjectType enum.

3 files changed, 5 insertions, 3 deletions

diff --git a/src/backend/commands/alter.c b/src/backend/commands/alter.c
index c9a9bafef74..e7f4ef3e8e6 100644
--- a/src/backend/commands/alter.c
+++ b/src/backend/commands/alter.c
@@ -305,7 +305,8 @@ ExecRenameStmt(RenameStmt *stmt)
 {
 	switch (stmt->renameType)
 	{
-		case OBJECT_CONSTRAINT:
+		case OBJECT_TABCONSTRAINT:
+		case OBJECT_DOMCONSTRAINT:
 			return RenameConstraint(stmt);
 
 		case OBJECT_DATABASE:
diff --git a/src/backend/commands/event_trigger.c b/src/backend/commands/event_trigger.c
index 8b88ecb359e..6bdb7749878 100644
--- a/src/backend/commands/event_trigger.c
+++ b/src/backend/commands/event_trigger.c
@@ -1053,10 +1053,10 @@ EventTriggerSupportsObjectType(ObjectType obtype)
 		case OBJECT_ATTRIBUTE:
 		case OBJECT_CAST:
 		case OBJECT_COLUMN:
-		case OBJECT_CONSTRAINT:
 		case OBJECT_COLLATION:
 		case OBJECT_CONVERSION:
 		case OBJECT_DOMAIN:
+		case OBJECT_DOMCONSTRAINT:
 		case OBJECT_EXTENSION:
 		case OBJECT_FDW:
 		case OBJECT_FOREIGN_SERVER:
@@ -1073,6 +1073,7 @@ EventTriggerSupportsObjectType(ObjectType obtype)
 		case OBJECT_RULE:
 		case OBJECT_SCHEMA:
 		case OBJECT_SEQUENCE:
+		case OBJECT_TABCONSTRAINT:
 		case OBJECT_TABLE:
 		case OBJECT_TRIGGER:
 		case OBJECT_TSCONFIGURATION:
diff --git a/src/backend/commands/tablecmds.c b/src/backend/commands/tablecmds.c
index 81c5ab27c96..3c0cdea265e 100644
--- a/src/backend/commands/tablecmds.c
+++ b/src/backend/commands/tablecmds.c
@@ -2457,7 +2457,7 @@ RenameConstraint(RenameStmt *stmt)
 	Oid			relid = InvalidOid;
 	Oid			typid = InvalidOid;
 
-	if (stmt->relationType == OBJECT_DOMAIN)
+	if (stmt->renameType == OBJECT_DOMCONSTRAINT)
 	{
 		Relation	rel;
 		HeapTuple	tup;