[Tile-serving] [osm2pgsql-dev/osm2pgsql] New feature: Check location of OSM objects against list of regions (PR #2333)

[mboeringa]

mboeringa left a comment (osm2pgsql-dev/osm2pgsql#2333)

> A locator can then be queried using `all_intersecting()` returning a list of names of all regions that intersect the specified OSM object geometry.

This raises one more question: I can imagine it being very useful to have the 'all_intersecting()' function return geometries in a specific sorted order, e.g. from largest in terms of area to smallest, to be able to use that in subsequent processing in Lua. Think of a locator build on all OpenStreetMap boundary relations of all levels, where you would like to see the largest-to-smallest set of intersecting boundary relations for a specific OSM object.

Does the current implementation implement any type of sort, or is the returned set's order completely arbitrary?

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