All messages emitted by the PostgreSQL server are assigned five-character error codes that follow the SQL standard's conventions for

Namedropdb -- remove a PostgreSQL database Synopsis

NameDROP TEXT SEARCH DICTIONARY -- remove a text search dictionary Synopsis

NameCREATE USER -- define a new database role Synopsis

Nameinitdb -- create a new PostgreSQL database cluster

NameDROP FOREIGN DATA WRAPPER -- remove a foreign-data wrapper Synopsis

Namecreatedb -- create a new PostgreSQL database

CREATE DATABASE actually works by copying an existing database. By default, it copies the standard system database named template1

PostgreSQL's statistics collector is a subsystem that supports collection and reporting of information about server

Namepg_recvlogical -- control PostgreSQL logical decoding streams