I am very new to Splunk but I just encountered the explanation for this in a course 🙂 When no Dataset is specified in the From clause, Splunk assumes the first root Dataset is addressed. When you want to address any root Dataset other than the first one, you must specify it explicitly. Therefore, it is best practice to ignore the fact that Splunk assumes the first root Dataset and specify it in every use even if Splunk allows you to save that little bit of typing 😉 | tstats summariesonly=t count FROM datamodel=model_name.dataset_1
where nodename=dataset_1 by dataset_1.FieldName
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