For some reason, tables planet_osm_rels, planet_osm_ways, planet_osm_nodes have tags defined as tags text[], instead of tags hstore. This makes it impossible to index and search by wikidata id tag.
Example goal: get entire geometry of the interstate highway by its wikidata ID.
| Status | Subtype | Assigned | Task | ||
|---|---|---|---|---|---|
| Declined | Yurik | T144152 Show KML files on maps | |||
| Declined | None | T145182 Use hstore for tags column in all osm2pgsql tables |
The slim tables are for internal osm2pgsql use and not designed to be easily queried. Also, if you're using flat nodes, the planet_osm_nodes table will be empty.