在PostgreSQl中导入数据库架构失败

Question

So I want to import a database schema but it fails. PostgreSQL Version is 9.5.11. Maybe the command is outdated? The user "user" is already set up. Do I need to pass a password additionally in the command?

postgres@root:~$ psql -d database -U user -f createdb.sql
psql: FATAL: Peer authentication failed for user "user"

Answer 1

In postgresql by default if you connect using unix socket the authentification is done with the peer method, this means you must use the same login unix and postgresql user. Here you try to user the user user but when running psql with the unix user postgres so it won't work. There is many different solutions, do you action as user postgres under postgres and then change the ownership later, or create a unix user calles user and do the action with it. You may define a password for the user postgres and connect on the loopback too. But if you don't understand how pg_hba.conf works it's not a good idea to modify it.