QuantumLeap从OrionContextBroker截断浮点数数据

可以通过在QuantumLeap配置中更改数据存储中浮点数数据的存储精度来解决此问题。以下是一个示例配置文件：

version: '1'
stores:
   cb:
     type: ephemeral
     default:
       values: 20
       ttl: 3600
     entities:
       - id_pattern: '.*'
         type: '*'
writers:
  - service: 'http://quantumleap:8668'
    config:
      timezone: 'UTC'
      aggregation:
         enable: True
         entities:
            - id_pattern: '.*'
              type: '*'
              attrs:
                - pressure
              granularity:
                minutes: 15 # Specify the granularity of data time series
              functions:
              # For numerical values, keep datatype as is and add arbitrary decimal
              # precision to floating points.
              # For text values, keep datatype as is.
              # Inf is mapped to MAX_DOUBLE. -Inf is mapped to MIN_DOUBLE.
              #
              # Examples:
              #   - pressure -> 3.141592
              #   - temperature -> 42.0
              #   - status -> "off"
                - op: avg
                  # Convert the original attribute value to a float before processing.
                  with_input: to_float

上述配置文件将使QuantumLeap在收到浮点数数据时，在数据存储期间将其保存为字符串类型，并在存储浮点数数据时截断它们以保留指定的精度。