bigqueryでは配列をGROUP BYしようとすると、以下のようなエラーになります。

SELECT
  status,
  count(1) as COUNT
FROM
  dataset.table
GROUP BY 1
ORDER BY 1

> Grouping by expressions of type ARRAY is not allowed at [6:10]

↓対策コードはこちら

SELECT
  ANY_VALUE(status) AS status
  , count(1) as COUNT
FROM
  dataset.table
GROUP BY FORMAT('%T', status)
ORDER BY FORMAT('%T', status)
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