GMB
2020-12-02 15:58:05
如果我正确地遵循了你的说明，则可以使用子查询来计算每个客户/原因元组的第一天，然后进行条件汇总：
select reason, days,
count(distinct cust_id) as unique_mtns,
sum(sum(case when days = min_days then 1 else 0 end))
over(partition by reason order by days) as total_cumulative_customers
from (
select reason, cust_id,
min(days) over(partition by reason, cust_id) as min_days
from mytable
) t
group by reason, days
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Mamba is a new state space model architecture showing promising performance on information-dense data such as language modeling, where previous subquadratic models fall short of Transformers. It is based on the line of progress on structured state space models, with an efficient hardware-aware design and implementation in the spirit of FlashAttention.
(翻译：Mamba 是一种新的状态空间模型架构，在信息密集型数据（例如语言建模）上显示出良好的性能，而之前的二次模型在 Transformers 方面存在不足。它基于结构化状态空间模型的进展，并本着FlashAttention的精神进行高效的硬件感知设计和实现。)
某些列在外部查询中不可用。另外
min_days是不是由组在场，所以应该有另一个sum或它应该抛出一个错误（也许在蜂巢它的工作方式不同？）。可以通过在内部查询中标记第一天来解决此问题lag(0, 1, 1) over(partition by reason, cust_id order by days asc)谢谢@GMB！在您添加另外一个总和进行编辑后，您的解决方案可以正常工作。谢谢@astentx，通过添加另一个总和，我运行了查询。