Implement "ALTER EXTENSION ADD object".

This is an essential component of making the extension feature usable;
first because it's needed in the process of converting an existing
installation containing "loose" objects of an old contrib module into
the extension-based world, and second because we'll have to use it
in pg_dump --binary-upgrade, as per recent discussion.

Loosely based on part of Dimitri Fontaine's ALTER EXTENSION UPGRADE
patch.

1 files changed, 16 insertions, 0 deletions

diff --git a/src/backend/nodes/copyfuncs.c b/src/backend/nodes/copyfuncs.c
index 851186146dd..3d898326d7a 100644
--- a/src/backend/nodes/copyfuncs.c
+++ b/src/backend/nodes/copyfuncs.c
@@ -3250,6 +3250,19 @@ _copyCreateExtensionStmt(CreateExtensionStmt *from)
 	return newnode;
 }
 
+static AlterExtensionAddStmt *
+_copyAlterExtensionAddStmt(AlterExtensionAddStmt *from)
+{
+	AlterExtensionAddStmt *newnode = makeNode(AlterExtensionAddStmt);
+
+	COPY_STRING_FIELD(extname);
+	COPY_SCALAR_FIELD(objtype);
+	COPY_NODE_FIELD(objname);
+	COPY_NODE_FIELD(objargs);
+
+	return newnode;
+}
+
 static CreateFdwStmt *
 _copyCreateFdwStmt(CreateFdwStmt *from)
 {
@@ -4252,6 +4265,9 @@ copyObject(void *from)
 		case T_CreateExtensionStmt:
 			retval = _copyCreateExtensionStmt(from);
 			break;
+		case T_AlterExtensionAddStmt:
+			retval = _copyAlterExtensionAddStmt(from);
+			break;
 		case T_CreateFdwStmt:
 			retval = _copyCreateFdwStmt(from);
 			break;