model/rewrite_vocabulary.json

{
  "ZEROIFNULL": "COALESCE(expr, 0)",
  "NVL": "COALESCE",
  "ISNULL": "COALESCE",
  "STRING_AGG": "LISTAGG",
  "APPROXIMATE_COUNT_DISTINCT": "APPROX_COUNT_DISTINCT",
  "GETDATE": "CURRENT_TIMESTAMP()",
  "SYSDATE": "CURRENT_TIMESTAMP()",
  "IFNULL": "COALESCE",
  "IFF": "IF",
  "LISTAGG": "STRING_AGG"
}