在BigQuery中,在查询时使用MAX(COUNT(*))作为子查询,以计算整个表的最大计数值,然后将计数值作为常量在查询中使用。以下是示例代码:
SELECT ..., COUNT() / max_count AS ratio FROM ..., (SELECT MAX(count) as max_count FROM (SELECT COUNT() AS count FROM ...)) WHERE ... GROUP BY ... ORDER BY ...
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