<select name="criteriaColumnOperators[<?php echo $search_index; ?>]"
        onchange="changeValueFieldType(this, <?php echo $search_index; ?>)">
    <?php echo $GLOBALS['PMA_Types']->getTypeOperatorsHtml(
        preg_replace('@\(.*@s', '', $columnTypes[$column_index]),
        $columnNullFlags[$column_index], $selected_operator
    ); ?>
</select>