# File lib/rubyrep/proxy_connection.rb, line 252
    def quote_value(table, column, value)
      self.table_columns ||= {}
      unless table_columns.include? table
        table_columns[table] = {}
        columns(table).each {|c| table_columns[table][c.name] = c}
      end
      connection.quote value, table_columns[table][column]
    end