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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
• aggregationFunction: optional
  aggregation function (e.g. mean)
• timeInterval: optional
  time interval for aggregation (e.g. 1m - one minute), if specified: performing group by time

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getting specific page with predefined number of events per page of a specific measurement series

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• page:
  page number
• itemsPerPage:
  data points per page

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downloading events of a specific mesurement series from in desired format

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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: optional
  start date, if not specified: first element
• endDate: optional
  end date, if not specified: last element

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• index: optional
  index of measurement series

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• startDate:
  start date, if not specified: first element
• endDate:
  end date, if not specified: last element
• column:
  label column
• label:
  class label

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• parameter_name = value (e.g. retention_time)

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• type: optional
  file type (image, COCO)

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• key

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• key

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References:

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