我想在 Grafana 和 AWS Timestream 中添加表格列

Question

我有来自 AWS Timestream 的这张图片的数据

所以我试图从这些数据中制作一个表格。 我写了这样的查询来添加'ntu'

SELECT CREATE_TIME_SERIES(time,measure_value::double) as ntu FROM $__database.$__table where $__timeFilter and measure_name = 'ntu'

但是我不知道如何通过查询添加更多列，例如“快门速度”、“强度”

Answer 1

您可以像这样在 measure_name 上旋转表格：

select device_id, time
       max(case when measure_name = 'ntu' then measure_value::double end) as ntu,
       max(case when measure_name = 'shutterspeed' then measure_value::bigint end) as shutterspeed,
       max(case when measure_name = 'intensity' then measure_value::double end) as intensity
from $__database.$__table where $__timeFilter
group by instance_id, time

同样，您可以添加其他列