DATE_TRUNC 从周日开始 SQL presto (Athena)
[英]DATE_TRUNC Starting on Sunday for SQL presto (Athena)
问题描述
For as simple as this question may sound, I have not been able to find a straight forward solution.
尽管这个问题听起来很简单，但我一直无法找到直接的解决方案。 I am using AWS Athena, which is a presto engine to my knowledge.我正在使用 AWS Athena，据我所知这是一个 presto 引擎。
I have variable 'created_at' which is a TIMESTAMP.我有一个时间戳变量“created_at”。 How can I get DATE_TRUNC('week', created_at) to start in SUNDAY instead of MONDAY?如何让DATE_TRUNC('week', created_at)在星期天而不是星期一开始？
I've seen documentation concerning %V or %X as possible solutions, but not sure where in the function to introduce this, that is, if it is the proper solution.我看过有关 %V 或 %X 作为可能解决方案的文档，但不确定在 function 中的何处介绍它，也就是说，它是否是正确的解决方案。
Essentially I want to count sales by week starting on SUNDAY ending on SATURDAY, I will be grouping by weeK本质上，我想按周计算销售额，从周日开始到周六结束，我将按周分组
GROUP BY DATE_TRUNC('week', created_at)
1 个解决方案
解决方案1
0 已采纳 2021-08-23 14:30:52
You could use them in date_format function: date_format(created_at, '%X%V') (and use the result to group), but unfortunately they are not supported by presto at the moment.您可以在date_format function: date_format(created_at, '%X%V')中使用它们（并使用结果进行分组），但不幸的是，目前 presto 不支持它们。
As a workaround you can just add one day:作为一种解决方法，您可以只添加一天：
select week(created_at + interval '1' day)
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