New Features in osm2pgsql -- Use cases for PgOSM Flex?

[rustprooflabs]

Ideas Welcome!

With osm2pgsql v2.2.0 there are two new features with "Locators" and the "deleted callbacks". Does anyone have use cases you can explain that would leverage those?

Locators have caught my interest more than the callbacks so far.

Locators: Classify Layers within Region(s)

The method of defining locators from PostGIS queries indicates that the PgOSM Flex process would need to have a defined layer to "use as locators" that would also need a mechanism for defining which column(s) and/or values to include in the logic. Plus a list of layers to "be located."

Locators: Scoped Imports

It sounds like Lua could also be adjusted to only import certain features inside/outside regions. I don't yet have ideas exactly how that could work in effectively to this project, but it's an intriguing idea. Things to ponder...