title: COPY command: copy only specific columns from csv
body: <p>I had a question surrounding the <code>COPY</code> command in PostgreSQL. I have a CSV file that I only want to copy some of the columns values into my PostgreSQL table.</p>
  
  <p>Is it possible to do this? I am familiar with using the <code>COPY</code> command to copy all of the data from a CSV into a table using the header to map to the column names but how is this possible when I only want some of the columns?</p>