Bug 654496: Duplicate bug detection doesn't work when using Oracle

Bugzilla/Bug.pm

@@ -559,8 +559,8 @@ sub possible_duplicates {
            FROM bugs
                 INNER JOIN bugs_fulltext ON bugs.bug_id = bugs_fulltext.bug_id
           WHERE ($where_sql) $product_sql
-       ORDER BY relevance DESC, bug_id DESC
-          LIMIT $sql_limit", {Slice=>{}});
+       ORDER BY relevance DESC, bug_id DESC " .
+          $dbh->sql_limit($sql_limit), {Slice=>{}});
 
     my @actual_dupe_ids;
     # Resolve duplicates into their ultimate target duplicates.

Bugzilla/DB/Oracle.pm

@@ -177,7 +177,7 @@ sub sql_fulltext_search {
     my ($self, $column, $text, $label) = @_;
     $text = $self->quote($text);
     trick_taint($text);
-    return "CONTAINS($column,$text,$label)", "SCORE($label)";
+    return "CONTAINS($column,$text,$label) > 0", "SCORE($label)";
 }
 
 sub sql_date_format {