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Another possible adaptation would be the comprehensive implementation of an append-only approach for time series data. In particular, the functionality of the labelData method would have to be adapted here, which currently works with updates of existing DB entries.

Suggestion for the revised endpoint definitions

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• startDate: optional
  start date, if not specified: first element
• endDate: optional
  end date, if not specified: last element
• groupBy: optional
• grouping tags
• function: optional
  aggregation function (e.g. mean)
• timeInterval: optional
  time interval for aggregation (e.g. 1m), if specified: performing group by time

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• page
  page number
• itemsPerPage
  data points per page

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• format: default csv
  download format (csv, json)
• startDate: optional
  start date, if not specified: first element
• endDate: optional
  end date, if not specified: last element

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• startdate
• enddate

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• startdate
• enddate
• column
• label

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• parameter_name = value

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• key

References:

• Apache StreamPipes Documentation: https://streampipes.apache.org/docs/docs/pe/org.apache.streampipes.sinks.internal.jvm.datalake/