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Sparkplug
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Question: [DataSet rows without timestamps] #481

Open chrisdutz opened 11 months ago

chrisdutz commented 11 months ago

What do you want to know?

I am currently working hard on building a SparkplugB enabled import for Apache IoTDB. While I've implemented support for most datatypes, I'm having a bit of a problem for the DataSet.

As far as I understood it, I can use that to transport multiple rows of a number of metrics.

However it seems as if I can't pass along timestamps for these ... this would result in all rows of the dataset having the same timestamp (Timeseries DBs don't really like that one field has multiple values for the exact same Timestamp.

So what's the general Idea on how to use the DataSet metrics?

Is this related to a Sparkplug Listing request? If so, link the issue from https://github.com/eclipse-sparkplug/sparkplug.listings here.

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bryce-nakatani commented 11 months ago

DataSets are a datatype for a Metric. However, Metrics as a DataSet data type isn't supported. You could send a train of metrics of the same tag/alias that contains timestamps unique to each data change of the tag. Is that what you're trying to accomplish?