Mark a static array "const" to move a few bytes from the "data" segment

to the "text" segment. It would be possible to mark the elements of the
array "const" as well, but this would require multiple API changes and
does not seem to be worth the notational inconvenience.

Author: Neil Conway

src/backend/catalog/heap.c

@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/catalog/heap.c,v 1.287 2005/07/13 22:46:09 tgl Exp $
+ *	  $PostgreSQL: pgsql/src/backend/catalog/heap.c,v 1.288 2005/07/28 07:38:33 neilc Exp $
  *
  *
  * INTERFACE ROUTINES
@@ -141,7 +141,7 @@ static FormData_pg_attribute a7 = {
 	true, 'p', 'i', true, false, false, true, 0
 };
 
-static Form_pg_attribute SysAtt[] = {&a1, &a2, &a3, &a4, &a5, &a6, &a7};
+static const Form_pg_attribute SysAtt[] = {&a1, &a2, &a3, &a4, &a5, &a6, &a7};
 
 /*
  * This function returns a Form_pg_attribute pointer for a system attribute.
@@ -440,7 +440,7 @@ AddNewAttributeTuples(Oid new_rel_oid,
 					  bool oidislocal,
 					  int oidinhcount)
 {
-	Form_pg_attribute *dpp;
+	const Form_pg_attribute *dpp;
 	int			i;
 	HeapTuple	tup;
 	Relation	rel;