[pgpool-hackers: 3216] watchdog lifecheck method with query mode does not work in 4.0.

[Tatsuo Ishii]

It is pointed out that watchdog lifecheck method with query mode does
not work since 4.0.

https://www.pgpool.net/mantisbt/view.php?id=455

The cause of this is using thread unsafe function
get_pgpool_config_user_password(). Making it thread safe requires none
trivial work. So I tend to agree that we disable using AES encrypted
password for lifecheck method = "query".

Any objection?
--
Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php
Japanese:http://www.sraoss.co.jp