Switched to compatible $dbr->timestamp() call rather than silly date() call for timestamps - should support Postgres now.

ContributionScores.php

@@ -10,7 +10,7 @@ $wgExtensionCredits['specialpage'][] = array(
     'url'=>'http://www.mediawiki.org/wiki/Extension:Contribution_Scores',
     'author'=>'Tim Laqua, t.laqua at gmail dot com',
     'description'=>'Polls Wiki Database for highest user contribution volume.',
-    'version'=>'1.2'
+    'version'=>'1.3'
 );
  
 $wgAutoloadClasses['ContributionScores'] = dirname(__FILE__) . '/ContributionScores_body.php';

ContributionScores_body.php

@@ -24,8 +24,7 @@ class ContributionScores extends SpecialPage
  
                 if ( $days > 0 ) {
                   $date = mktime() - (60*60*24*$days);
-                  $dateString = date("Ymd",$date)."000000";
- 
+                  $dateString = $dbr->timestamp($date);
                   $sql .= "WHERE rev_timestamp > '$dateString' ";
                 }