El día viernes, agosto 06, 2021 a las 09:07:56a. m. +0200, Guillaume Lelarge escribió: > Le ven. 6 août 2021 à 08:53, Matthias Apitz <guru@xxxxxxxxxxx> a écrit : > > > > > Hello, > > > > testpos@srap53dxr1:~> psql --help > > ... > > -d, --dbname=DBNAME database name to connect to (default: "testpos") > > > > testpos@srap53dxr1:~> whoami > > testpos > > > > testpos@srap53dxr1:~> env | grep PG > > PGPASSWORD=xxxxxxxx > > PGHOST=localhost > > PGPORT=5432 > > > > testpos@srap53dxr1:~> LANG=C psql -Usisis > > psql (13.3) > > Type "help" for help. > > > > sisis=# \l > > List of databases > > Name | Owner | Encoding | Collate | Ctype | Access > > privileges > > > > -----------+----------+----------+-------------+-------------+----------------------- > > postgres | postgres | UTF8 | de_DE.UTF-8 | de_DE.UTF-8 | > > sisis | sisis | UTF8 | de_DE.UTF-8 | de_DE.UTF-8 | > > ... > > > > Why psql connects to the database 'sisis'? I was expecting that it > > will try to connect to a database 'testpos' as this is the UNIX login > > and as '-d....' was not specified. I was expecting in this case an > > error like this: > > > > testpos@srap53dxr1:~> export PGDATABASE=testpos > > testpos@srap53dxr1:~> psql -Usisis > > psql: error: FATAL: database »testpos« does not exist > > > > What do I uderstand wrong? > > > > When you try to connect without specifying a database name on the command > line, psql will check PGDATABASE. If unset, it will use the PostgreSQL user > name also as the database name. If you don't specify explicitly the > PostgreSQL username, it will check PGUSER and, if unset, will use the OS > username. > > That matches all your examples above. No, it does not match all my examples. Read again what it says as default on --help. matthias -- Matthias Apitz, ✉ guru@xxxxxxxxxxx, http://www.unixarea.de/ +49-176-38902045 Public GnuPG key: http://www.unixarea.de/key.pub Tear it down! Defund the Humboldt Forum! https://www.jungewelt.de/artikel/406715.humboldt-forum-feudaler-themenpark.html
