Some variants of ALTER OWNER tried to make the "object" field of the

statement be a list of bare C strings, rather than String nodes, which is
what they need to be for copyfuncs/equalfuncs to work.  Fortunately these
node types never go out to disk (if they did, we'd likely have noticed the
problem sooner), so we can just fix it without creating a need for initdb.
This bug has been there since 8.0, but 8.3 exposes it in a more common
code path (Parse messages) than prior releases did.  Per bug #3940 from
Vladimir Kokovic.

src/backend/commands/alter.c

@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/commands/alter.c,v 1.26 2008/01/01 19:45:48 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/backend/commands/alter.c,v 1.27 2008/02/07 21:07:55 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -216,7 +216,7 @@ ExecAlterOwnerStmt(AlterOwnerStmt *stmt)
 			break;
 
 		case OBJECT_DATABASE:
-			AlterDatabaseOwner((char *) linitial(stmt->object), newowner);
+			AlterDatabaseOwner(strVal(linitial(stmt->object)), newowner);
 			break;
 
 		case OBJECT_FUNCTION:
@@ -224,7 +224,7 @@ ExecAlterOwnerStmt(AlterOwnerStmt *stmt)
 			break;
 
 		case OBJECT_LANGUAGE:
-			AlterLanguageOwner((char *) linitial(stmt->object), newowner);
+			AlterLanguageOwner(strVal(linitial(stmt->object)), newowner);
 			break;
 
 		case OBJECT_OPERATOR:
@@ -244,11 +244,11 @@ ExecAlterOwnerStmt(AlterOwnerStmt *stmt)
 			break;
 
 		case OBJECT_SCHEMA:
-			AlterSchemaOwner((char *) linitial(stmt->object), newowner);
+			AlterSchemaOwner(strVal(linitial(stmt->object)), newowner);
 			break;
 
 		case OBJECT_TABLESPACE:
-			AlterTableSpaceOwner((char *) linitial(stmt->object), newowner);
+			AlterTableSpaceOwner(strVal(linitial(stmt->object)), newowner);
 			break;
 
 		case OBJECT_TYPE:

src/backend/parser/gram.y

@@ -11,7 +11,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/parser/gram.y,v 2.605 2008/01/01 19:45:50 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/backend/parser/gram.y,v 2.606 2008/02/07 21:07:55 tgl Exp $
  *
  * HISTORY
  *	  AUTHOR			DATE			MAJOR EVENT
@@ -4825,7 +4825,7 @@ AlterOwnerStmt: ALTER AGGREGATE func_name aggr_args OWNER TO RoleId
 				{
 					AlterOwnerStmt *n = makeNode(AlterOwnerStmt);
 					n->objectType = OBJECT_DATABASE;
-					n->object = list_make1($3);
+					n->object = list_make1(makeString($3));
 					n->newowner = $6;
 					$$ = (Node *)n;
 				}
@@ -4850,7 +4850,7 @@ AlterOwnerStmt: ALTER AGGREGATE func_name aggr_args OWNER TO RoleId
 				{
 					AlterOwnerStmt *n = makeNode(AlterOwnerStmt);
 					n->objectType = OBJECT_LANGUAGE;
-					n->object = list_make1($4);
+					n->object = list_make1(makeString($4));
 					n->newowner = $7;
 					$$ = (Node *)n;
 				}
@@ -4885,7 +4885,7 @@ AlterOwnerStmt: ALTER AGGREGATE func_name aggr_args OWNER TO RoleId
 				{
 					AlterOwnerStmt *n = makeNode(AlterOwnerStmt);
 					n->objectType = OBJECT_SCHEMA;
-					n->object = list_make1($3);
+					n->object = list_make1(makeString($3));
 					n->newowner = $6;
 					$$ = (Node *)n;
 				}
@@ -4901,7 +4901,7 @@ AlterOwnerStmt: ALTER AGGREGATE func_name aggr_args OWNER TO RoleId
 				{
 					AlterOwnerStmt *n = makeNode(AlterOwnerStmt);
 					n->objectType = OBJECT_TABLESPACE;
-					n->object = list_make1($3);
+					n->object = list_make1(makeString($3));
 					n->newowner = $6;
 					$$ = (Node *)n;
 				}