Question

我遇到了一个问题。我想从涉及4个不同表的查询中创建模型。但是，出现以下错误：语法错误-未公开评论

标准SQL中的代码：

CREATE MODEL `project.test1`
Options
(model_type='logistic_reg', labels = ['days_between_dates']) AS

WITH all_dates AS (SELECT ID, ARRAY_AGG(STRUCT(date)))
, info AS (SELECT ID, info)
, first_date AS (SELECT ID, date)
, second_date AS(SELECT ID, date)

SELECT * , DATE_DIFF(first_date.date, second_date.date) AS days_between_dates
FROM all_dates 
JOIN first_date USING (ID)
JOIN second_date USING (ID)
LEFT JOIN info USING (ID)
WHERE days_between_dates > 1

代码按预期工作，无需添加CREATE MODEL语句（代码的前三行）即可运行。

任何帮助将我指向正确方向的方法，我们将不胜感激。

谢谢

Answer 1

问题已通过以下代码解决：

CREATE MODEL `project.test1`
Options
(model_type='logistic_reg', labels = ['days_between_dates']) AS

SELECT * , DATE_DIFF(first_date.date, second_date.date) AS days_between_dates
FROM (SELECT ID, ARRAY_AGG(STRUCT(date)))
JOIN (SELECT ID, date) first_date USING (ID)
JOIN (SELECT ID, date) second_date USING (ID)
LEFT JOIN (SELECT ID, info) USING (ID)
WHERE days_between_dates > 1

但是“数据类型ARRAY

BigQuery ML-语法错误：未封闭的注释。创建模型时

1 个答案: