title: Is there a way to estimate table or field size in BigQuery?
body: <p>I am designing a schema that will be used for analytics. In order to properly decide how far do I go with de-normalization of data, I need to estimate the size of columns in the target schema.
  I am looking for a way to predict the size of a column in a BQ table based on the info I have (data type, cardinality, avg (or percentile) string length, # of records etc.).</p>
  
  <p>Are there any heuristics or other methods to roughly estimate column size?</p>
  
  <p>Thanks</p>