[Tile-serving] [openstreetmap/osm2pgsql] Importing with Dutch "Rijksdriehoekstelsel" projection (SRID 28992) fails (extremely slow) (Issue #1876)

[mboeringa]

> I have seen problems like this when switching from lat/lon to Mercator coordinates or the other way round when splitting long lines or large polygons or so, because a line split at 1° is okay, but splitting every 1m in Mercator multiplies the number of features enormously. So maybe it is something to do with coordinate values/ranges.

I actually have code for this in my LUA flex style to deal with this. If the projection is 4326, lines are split at 1 degree, all other projections detected at 100k meters.

I also have a second configuration option, where I can disable line splitting by setting a boolean variable to false. And the current style is configured with false, so no line splitting is taking place.

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