Sync message causes backend to return a "Ready for query" response
even if there's no query previously sent to the backend. I don't think
this is a bug but I'd think it would be better to write this behavior
in the doc, because it might help someone who want to write an API
which needs to handle frontend/backend protocol in the future.
Best regards,
--
Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php
Japanese:http://www.sraoss.co.jp