system.db.runNamedQuery(path, [parameters], [tx], [getKey])
Boolean getKey - Only used for Update Query types. A flag indicating whether or not the result should be the number of rows affected (getKey=0) or the newly generated key value that was created as a result of the update (getKey=1). Not all databases support automatic retrieval of generated keys. [optional]
Any - The results of the query. The exact object returned depends on the Query Type property of the Named Query: typically either a dataset when set to Query, an integer representing the number of rows affected when set to Update Query, or an object matching the data type of the value returned by a Scalar Query.
This feature was changed in Ignition version 8.1.29:
PyDataset - The results of the Named Query as a PyDataset.
Vision Client, Perspective Session