title: Exclude fields from entities in Korma
body: <p>I have some tables with a lot of columns where I sometimes need to just exclude 5-6 out of 50-60. Yes my tables are 3NF normalised, yes some have even more than 60 columns, if this sounds weird to you dear reader, try modelling biological entities. </p>
  
  <p>To my question:</p>
  
  <p>Is it possible to exclude fields by default in selects in Korma instead of specifying tens of columns in <code>entity-fields</code> at entity definition?</p>