Index: openacs-4/packages/acs-admin/tcl/apm-admin-procs-postgresql.xql
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-admin/tcl/Attic/apm-admin-procs-postgresql.xql,v
diff -u -r1.3 -r1.3.10.1
--- openacs-4/packages/acs-admin/tcl/apm-admin-procs-postgresql.xql	10 May 2001 13:50:10 -0000	1.3
+++ openacs-4/packages/acs-admin/tcl/apm-admin-procs-postgresql.xql	28 Nov 2003 00:14:35 -0000	1.3.10.1
@@ -3,13 +3,14 @@
 <queryset>
    <rdbms><type>postgresql</type><version>7.1</version></rdbms>
 
+<!-- Note that the IN here generates a better plan than = on 7.3 for some mysterious reason -->
 <fullquery name="apm_higher_version_installed_p.apm_higher_version_installed_p">      
       <querytext>
 
 		select apm_package_version__version_name_greater(:version_name, highest.version_name)
                 from (select version_name
 		      from apm_package_versions
-                      where version_id = apm_package__highest_version(:package_key)
+ 	              where version_id IN (select apm_package__highest_version(:package_key))
                      ) highest
     
       </querytext>