@@ -123,7 +123,7 @@ class views_handler_filter_chado_select_string extends views_handler_filter_stri
$holders[] = "'%s'";
}
- $where = "$upper($field) IN $upper(".implode(", ",$holders).")";
+ $where = "$field IN (".implode(", ",$holders).")";
$this->query->add_where($this->options['group'], $where, $this->value);
} else {