title: Selectively bypass data type converter
body: <p>I have a SQL database I query using sqlite3 in Python and I have created a custom data type called FOOBAR. Columns with this data type store a string which is a file path. When queried, the converter opens the file and returns some data, which works perfectly.</p>
  
  <p>I was wondering if there is any way I can pull just the file path string out of the column, i.e. selectively NOT apply the converter for this custom data type from time to time.</p>