Hello,
Enabling History for a tag with data type string, integer and others are working as expected, however selecting types Dataset, Document, and Array doesn’t save the changed data in the history tables created in the DB.
So, my question would be if it is possible to save historical data for these mentioned data types? Or maybe I’m missing something.
I’m using Ignition 8.1.4
Thanks so much for the help!
No, not supported.
Thanks so much for the answer.
Why it’s not supported?
How to historize array format data?
I am facing same issue, enable tag history which data type is dataset and tag logged into table on on change mode. but value is null.
There's no column type in the historian data partitions that can accept an encoded dataset.
The documented columns in sqlth_data_X... cannot accept arrays as a whole. If you enable history on a tag of an array type, you will get separate history (separate tag IDs) for every subscript in the array. There is nothing like this for datasets or documents.
