My username in the personal laptop is user. So running psql from command line throws an error psql: FATAL: role "user" does not exist. This is because the user is a reserved keyword(not sure about the right term) in postgres. Is there a workaround for this problem?
Trying to create a role user errors out for the same reason.
postgres=# CREATE USER user;
ERROR: syntax error at or near "user"
LINE 1: CREATE USER user;
^
You need to quote reserved words. Try CREATE USER "user"
Related
I have installed PostgreSQL for a long time but just currently learning it.
Here is what happened if I run psql in the command prompt
C:\Users\VandaRsq>psql
Password for user Vanda Rashq:
Since I forgot the password for the Vanda Rashq role but I remember for the postgres role, I run psql -U postgres.
I tried to list the role by using du command and the result is this:
I also tried using SELECT rolname FROM pg_roles command and yield:
I have tried to follow this tutorial and do ALTER USER "Vanda Rashq" WITH PASSWORD 'new_password'; but it returns ERROR: role "Vanda Rashq" does not exist
My question is, does the "Vanda Rashq" role actually still exist? If yes, how to reset (change) the password in case I forgot the password? If not, how to change the default role when running psql to postgres role
Notes: I have tried to uninstall the PostgreSQL and remove all of the directories but when I try to run psql, it still ask Password for user Vanda Rashq
If the user you're looking for is not listed after calling \du in psql then the user does not exist in the database.
Btw, you could also use a select to retrieve information about database users: select * from pg_catalog.pg_user;
EDIT:
Like #jjanes pointed out you get challenged for a password based on the USER configuration in yourpg_hba.conf (see docs).
For authentication method peer it is stated:
Obtain the client's operating system user name from the operating system and check if it matches the requested database user name.
I'm migrating all the role from my PostgreSQL hosted in GCE VM to Cloud SQL by generating dump file
sudo -Hu postgres pg_dumpall -U postgres --globals-only --file=globals.sql
When I import the same(globals.sql) in Cloud SQL I came across below error:
exit status 3 SET SET SET CREATE ROLE ERROR: must be superuser to alter superusers
Note:
I used postgres user to import this dump file to the cloud sql database.
I'm curious is there any other way to tackle this since postgres user does not have superuser privileges?
I tried executed one query from globals.sql file using cloud shell, below is the output:
postgres=> CREATE ROLE vipinm;
CREATE ROLE
postgres=> ALTER ROLE vipinm WITH NOSUPERUSER INHERIT NOCREATEROLE NOCREATEDB LOGIN NOREPLICATION NOBYPASSRLS;
ERROR: must be superuser to alter superusers
Thanks in advance!
The psql documentation says:
psql returns 0 to the shell if it finished normally, 1 if a fatal error of its own occurs (e.g., out of memory, file not found), 2 if the connection to the server went bad and the session was not interactive, and 3 if an error occurred in a script and the variable ON_ERROR_STOP was set.
So don't set ON_ERROR_STOP.
The error means that you cannot execute the following line from your dump:
ALTER ROLE postgres WITH SUPERUSER INHERIT CREATEROLE CREATEDB LOGIN REPLICATION BYPASSRLS;
That is fine, and you can ignore the error.
This is kind of a bug. As a non-superuser, you can't even reiterate that another role is still not a superuser, as even mentioning anything about superusers even when it would have no effect throws an error. You can get around this by creating the role in its final state, rather than doing the CREATE then ALTER dance that pg_dump likes to do.
CREATE ROLE vipinm WITH NOSUPERUSER INHERIT NOCREATEROLE NOCREATEDB LOGIN NOREPLICATION NOBYPASSRLS;
Alternatively, you could remove from the ALTER statement all the attributes that don't cause any change but merely reiterate the current state of things, leaving:
ALTER ROLE vipinm WITH LOGIN;
If I create a user logged in as postgres to the root db and create a user... it doesn't work. What am I doing wrong?
postgres=> CREATE ROLE myUser WITH LOGIN PASSWORD 'xxx';
CREATE ROLE
postgres=> GRANT CONNECT ON DATABASE myDatabase TO myUser;
GRANT
postgres=> GRANT USAGE ON SCHEMA public to myUser;
GRANT
postgres=> GRANT SELECT ON ALL TABLES IN SCHEMA public TO myUser;
GRANT
When I go to authenticate I get an error.
psql -h $dbURL -U myUser myDatabase
FATAL: password authentication failed for user myUser
The user you created is "myuser", because case is ignored for SQL identifiers not within double quotes, and folded to lower case. But case is not ignored in command-line tools, so you are trying to log in as non-existent user "myUser". Since non-existent users don't have a password hash, password authentication must fail.
You might want to check if you have a .pgpass file present and inspect the environment variables to see if you have set a PGPASSWORD or PGPASSFILE. In any of these cases, psql will not prompt for the password and take it from the file or variable instead - and if what's there is incorrect, it will give you that exact error.
You can
unset the PGPASSWORD or PGPASSFILE variable
get rid of the .pgpass file
remove the entry corresponding to this connection from .pgpass file
correct the value of PGPASSFILE/PGPASSWORD variable or the contents of .pgpass file
use psql with a -W switch making it ignore other settings and always prompt for a password
alter the host-based authentication settings in pg_hba.conf file to change the authentication method or trust a certain type of connection
I have this database triviaDB that i am connecting to from a flask-sqlalchemy 'postgresql://devuser:devpass#localhost:5432/triviaDB'however it's giving me a programing error psycopg2: auth not allowed.
so i use the following commands in psql to try and give devuser authorization on this database but here is the problem
when i run GRANT ALL PRIVILEGES ON DATABASE triviaDB to devuser; iget this error:
ERROR: database "triviadb" does not exist
when i quote the db name GRANT ALL PRIVILEGES ON DATABASE 'triviaDB' TO devuser; i get this :
ERROR: syntax error at or near "'triviaDB'"
If the DB name was created with upper cases, you need to use double quotes:
GRANT ALL PRIVILEGES ON DATABASE "triviaDB" to devuser;
when I try to login to my database with psql, doing this:
psql dbname --username=qgis --password
>>(prompts for password, entered password)
psql: FATAL: permission denied for database "gisdatabase"
DETAIL: User does not have CONNECT privilege.
I've searched around on Google for information on this simple issue but haven't found anyone directly talking about this.
I've tried doing this:
psql dbname
>>ALTER ROLE qgis WITH CONNECT;
But got this error:
ERROR: unrecognized role option "connect"
So once again, here I am, asking yet another question on stackoverflow. Thanks for your time folks
You need to grant a privilege. Try this:
psql dbname
>> GRANT CONNECT ON DATABASE dbname TO qgis;
I assume you will also need further privileges. PostgreSQL has one of the best documentation pages of all the DBMSs: http://www.postgresql.org/docs/9.0/static/sql-grant.html (You can choose the postgres version you're using at the top of the page).