[nicoburns]

> Allowing for trailing commas should get included in the SQL spec.

Yep! That would be my #1 request for SQL. Seems ridiculous that it's not supported already.

[layer8]

I agree, though you can always use a dummy value as a workaround:

  SELECT
      first_column,
      second_column,
      third_column,
      null

[_dark_matter_]

BigQuery also supports trailing commas!