PostgreSQL passwords are case sensitive. Is there parameter control?

postgreSQL Passwords are case sensitive , Is there parameter control ?

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Take the answer 1：

The default is to confirm the case , You can specify the encryption algorithm of the password

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Other answers 1：

The default is to confirm the case , You can specify the encryption algorithm of the password

Other answers 2：

No parameter to cancel the case sensitivity setting was found .

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Certification parameter file ：pg_hba.conf

 How to connect ：local： Match to use Unix Domain socket connection host： Match to use  TCP/IP Established connection , Simultaneous matching SSL He Fei SSL Connect hostssl： Matching must be using SSL Of TCP/IP Connect hostnossl： Only match with non SSL Of TCP/IP Connection authentication mode ：Trust： Allow the connection unconditionally , No password or any other authentication is required Rejest： Unconditional denial of connection , Often used from a group “ Filter out ” Specific host , For example, one reject Line can block a specific host connection , The next line allows the rest of the hosts in a particular network to connect Md5： double md5 encryption password： and md5 equally , But the password is transmitted on the network in clear text , Not recommended gss： All use gssapi  Authenticated user , Only applicable to TCP/IP Connect sspi ：  Use SSPI Authenticated user , Only applicable to windows Connect peer： Get the operating system only user name of the client and judge whether it matches the requested database name , For local connections only ldap： Use ldap Service validation radius： Use RADIUS Service validation cert： Use SSL Service validation pam： All use the pluggable authentication module service provided by the operating system （PAM） To certify