Grafana 12.1.1 + openHistorian plugin 2.1.0: “Cannot convert undefined or null to object” even though datapoints are returned

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In the older versions, you can use the Interval function with a value of zero, for example:

Interval(0, FILTER TOP 10 ActiveMeasurements WHERE SignalType='FREQ')

The zero specifies “no downsampling”, so all data is returned.

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