We currently only support adding supplemental attributes one at a time. This is likely to be slow if there are thousands of attributes because each addition causes one row to be added to an SQLite table. We support bulk addition of time series for the same reason and could do the same for supplemental attributes.
We currently only support adding supplemental attributes one at a time. This is likely to be slow if there are thousands of attributes because each addition causes one row to be added to an SQLite table. We support bulk addition of time series for the same reason and could do the same for supplemental attributes.