# Functions
NewDB is an initializer for the DB struct.
NewPostgreSQLPool creates a new db pool and establishes a connection.
# Constants
DBHostEnv is the database host environment variable name.
DBNameEnv is the database name environment variable name.
DBPasswordEnv is the database user password environment variable name.
DBPortEnv is the database port environment variable name.
DBSearchPathEnv is the database search path environment variable name.
DBUserEnv is the database user environment variable name.
# Structs
DB is a concrete implementation for a PostgreSQL database.
PostgreSQLDSN is a PostgreSQL datasource name.