Google bigquery 工作日已成为您数据的一部分

祝你好运o）

提供输入和预期输出的简化示例，以便我们可以帮助您！请阅读并提供输入和预期输出的简化示例，以便我们能够帮助您！请阅读，请考虑投票，如果答案帮助！如果回答帮助，请考虑投票！

AVG(sales_total) OVER (PARTITION BY id ORDER BY date RANGE BETWEEN 22 PRECEDING AND 1 PRECEDING) AS avg_of_last_3_week

+-------+---------+---------+-----------+
| id .  |  date   | weekday |sales_total|
+-------+---------+---------+-----------+
| 1     | 01-01-17|    1    |     5     |
| 2     | 01-02-17|    2    |     .     |
| 3     | 01-03-17|    3    |     .     |
| 1     | 01-08-17|    1    |     10    |
| 2     | 01-09-17|    2    |     .     |
| 3     | 01-10-17|    3    |     .     |
| 1     | 01-15-17|    1    |     15    |
| 2     | 01-16-17|    2    |     .     |
| 3     | 01-17-17|    3    |     .     |
+-------+---------+---------+-----------+

+-------+---------+---------+-----------+-----------+
| id    |  date   | weekday |sales_total|rolling_avg|
+-------+---------+---------+-----------+-----------+
| 1     | 01-22-17|    1    |     15    |    10     |