--- bio.install	2009-03-10 14:37:41.000000000 -0400
+++ bio.install.patched	2009-03-10 14:37:37.000000000 -0400
@@ -100,6 +100,25 @@ function bio_update_5100() {
   return $ret;
 }
 
+/** 
+ * Creates an index on the uid column of the bio table 
+ **/ 
+function bio_update_5101() { 
+  $ret = array();
+
+  switch ($GLOBALS['db_type']) { 
+    case 'mysql':
+    case 'mysqli':
+      $ret[] = update_sql("ALTER TABLE {bio} ADD INDEX (uid)");
+      break;
+    case 'pgsql':
+      $ret[] = update_sql("CREATE INDEX uid_idx ON {bio} (uid)");
+      break;
+  }
+
+  return $ret;
+}
+
 /**
  * @} End of "defgroup bio-updates-5.x-1.x"
  */
@@ -115,4 +134,4 @@ function bio_uninstall() {
   variable_del('bio_profile_takeover');
   variable_del('bio_regstration_form');
   variable_del('bio_regstration_form_fields');
-}
\ No newline at end of file
+}