def select(select_expression, next_token = nil, consistent_read = nil)
select_expression = query_expression_from_array(select_expression) if select_expression.is_a?(Array)
@last_query_expression = select_expression
request_params = { 'SelectExpression' => select_expression,
'NextToken' => next_token,
'ConsistentRead' => consistent_read }
link = generate_request("Select", request_params)
result = select_response_to_ruby(request_info( link, QSdbSelectParser.new ))
return result unless block_given?
begin
break unless yield(result) && result[:next_token]
request_params['NextToken'] = result[:next_token]
link = generate_request("Select", request_params)
result = select_response_to_ruby(request_info( link, QSdbSelectParser.new ))
end while true
rescue Exception
on_exception
end