Casting for Columns with More Than 200 Characters - Analytics Database

SELECT * FROM StringSimilarity (
  ON (
    SELECT id, CAST(a AS VARCHAR(200)) AS a, CAST(b AS VARCHAR(200)) AS b
    FROM max_varchar_strlen
  ) PARTITION BY ANY
  USING
  ComparisonColumnPairs ('ld(a,b) AS sim_fn')
  Accumulate ('id')
) AS dt ORDER BY 1;