Direct functionality between datastores

[nnhjy]

It would be nice if the magic "Merger" could filter out a subset from its upstream datastore (entities, parameters, etc.) as per users' request. With that, the Merger becomes a generic tunnel for data transmission between datastores, which we haven't had yet.

[jkiviluo]

The current workaround is to use exporter and importer back-to-back. Another option is to use API functions.

We have to think how we develop both merger and data transformer going forward, but it has to wait until we finish v0.8 changes.

[soininen]

You can currently filter parameter values and entities by scenario and tool filters.

[DillonJ]

I definitely agree we need more datastore to datastore functionality.

[nnhjy]

You can currently filter parameter values and entities by scenario and tool filters.

This option seems the most proper way to go. Can we allow filtering by alternative as well? @soininen

[nnhjy]

We have to think how we develop both merger and data transformer going forward ...

The icon "data transformer" can be confusing as it only works along with some "executable" icons. It might fit better in the link as the filter does.

[jkiviluo]

Alternative filtering is coming... We don't seem to have an issue about it though.

[soininen]

I opened issues about moving Data transformer functionality into connections (#2146) and alternative filters (#2147). Both have been on my mind for some time now.

Not sure if there is anything else here.