Today i noticed that my blog wasnt working as i expected... after some time... someone at #postgresql toldme to watch the typecasting... even i like serendipity... i have to admit it... someone sucks at sql planning... here is the patch for it:

--- functions_entries.orig.inc.php      2008-02-26 02:14:37.000000000 -0430

+++ functions_entries.inc.php   2008-02-26 02:16:32.000000000 -0430

@@ -518,7 +518,7 @@

                         ON  e.authorid = a.authorid

                             {$cond['joins']}

                      WHERE

-                            e.$key LIKE '" . serendipity_db_escape_string($val) . "'

+                            e.$key = '" . serendipity_db_escape_string($val) . "'

                             {$cond['and']}

                      LIMIT  1";

you can download it here