Get rid of the separate RULE privilege for tables: now only a table's owner

can create or modify rules for the table.  Do setRuleCheckAsUser() while
loading rules into the relcache, rather than when defining a rule.  This
ensures that permission checks for tables referenced in a rule are done with
respect to the current owner of the rule's table, whereas formerly ALTER TABLE
OWNER would fail to update the permission checking for associated rules.
Removal of separate RULE privilege is needed to prevent various scenarios
in which a grantee of RULE privilege could effectively have any privilege
of the table owner.  For backwards compatibility, GRANT/REVOKE RULE is still
accepted, but it doesn't do anything.  Per discussion here:
http://archives.postgresql.org/pgsql-hackers/2006-04/msg01138.php

1 files changed, 3 insertions, 1 deletions

diff --git a/src/include/rewrite/rewriteDefine.h b/src/include/rewrite/rewriteDefine.h
index 3d284894e3a..e404ac526a8 100644
--- a/src/include/rewrite/rewriteDefine.h
+++ b/src/include/rewrite/rewriteDefine.h
@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1996-2006, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/rewrite/rewriteDefine.h,v 1.21 2006/03/05 15:58:58 momjian Exp $
+ * $PostgreSQL: pgsql/src/include/rewrite/rewriteDefine.h,v 1.22 2006/09/05 21:08:36 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -21,4 +21,6 @@ extern void DefineQueryRewrite(RuleStmt *args);
 extern void RenameRewriteRule(Oid owningRel, const char *oldName,
 				  const char *newName);
 
+extern void setRuleCheckAsUser(Node *node, Oid userid);
+
 #endif   /* REWRITEDEFINE_H */