Just to clarify, as of v3.7.0 tag $current will pull data from the record included in the NEW_ARCHIVE_RECORD event rather than querying the database for the last record. This means, for example, you can use $current.appTemp in a report without actually having field appTemp in the database (provided appTemp is being calculated and added to the archive record by a service such as StdWXCalculate). Of course, you cannot plot appTemp without including appTemp in the database as you need those historical records.
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