Failed to parse CASE statement. Google Data Studio

Question

I'm getting an error when trying to add a CASE statement in Google Data Studio.

Failed to parse Case Statement

Where am I going wrong?

CASE
  WHEN _count_featues_null value = 0 THEN COUNT_DISTINCT(dataset name )
END

Answer 1

Try moving the COUNT_DISTINCT function (and checking the spelling of _count_featues_null?):

COUNT_DISTINCT(CASE
    WHEN _count_featues_null value = 0 THEN dataset name
  END )