public function replace_all_text($table, database_column_info $column, $search, $replace) {
        if (!$this->replace_all_text_supported()) {
            return;
        }

        // NOTE: override this methods if following standard compliant SQL
        //       does not work for your driver.

        // Enclose the column name by the proper quotes if it's a reserved word.
        $columnname = $this->get_manager()->generator->getEncQuoted($column->name);

        $searchsql = $this->sql_like($columnname, '?');
        $searchparam = '%'.$this->sql_like_escape($search).'%';

        $sql = "UPDATE {".$table."}
                       SET $columnname = REPLACE($columnname, ?, ?)
                     WHERE $searchsql";

        if ($column->meta_type === 'X') {
            $this->execute($sql, array($search, $replace, $searchparam));

        } else if ($column->meta_type === 'C') {
            if (core_text::strlen($search) < core_text::strlen($replace)) {
                $colsize = $column->max_length;
                $sql = "UPDATE {".$table."}
                       SET $columnname = " . $this->sql_substr("REPLACE(" . $columnname . ", ?, ?)", 1, $colsize) . "
                     WHERE $searchsql";
            }
            $this->execute($sql, array($search, $replace, $searchparam));
        }
    }