Encountering an “ERROR: deadlock detected” in PostgreSQL can be a daunting experience. This error indicates that two or more database processes are stuck in a perpetual waiting cycle, each holding onto resources the others need to complete their transactions. Resolving this situation requires an analysis of the processes involved and often necessitates a closer look …
Encountering an “ERROR: could not open extension control file” can be a troubling issue when working with PostgreSQL. Typically, this error occurs during the creation of an extension and signifies that PostgreSQL cannot locate the control file for the specified extension. This situation is frequently caused by a mismatch between the location where PostgreSQL expects …
The error message FATAL: Peer authentication failed for user “username” in PostgreSQL indicates that a connection attempt was rejected due to the peer authentication method failing for the specified user. Peer authentication is a method that relies on the client’s operating system user credentials to match the PostgreSQL role (user) they are trying to connect …
The error message FATAL: no pg_hba.conf entry for host “host”, user “user”, database “db”, SSL off indicates that the client connection from the specified host to the PostgreSQL server for the given user and database is not allowed based on the current settings in the pg_hba.conf file. The pg_hba.conf file controls which hosts are allowed …
The error FATAL: database “dbname” does not exist in PostgreSQL indicates that the client is attempting to connect to a database named “dbname” that does not exist on the PostgreSQL server instance. Here are the steps to diagnose and fix this issue: Diagnose Fix Once you’ve diagnosed the problem, here are the possible fixes: Make …
The error message ERROR: syntax error at or near “identifier” in PostgreSQL indicates that there is a syntax mistake in the SQL query near the specified “identifier”. The term “identifier” in the error message will be replaced by the specific keyword, operator, or name that PostgreSQL has identified as being incorrectly used or placed in …