title: Postgresql and pgAdmin III, what is character varying[]
body: <p>When creating a table in pgAdmin, there are two data types list for most entries, such as the following examples,</p>
  
  <p>character varying,
  character varying[]
  or
  bigint,
  bigint[].</p>
  
  <p>What is the significance of the data type followed by []?</p>