<p>Solved alone, following this answer: <br>
<a href="https://help.openstreetmap.org/questions/40888/osm2pgsql-import-splits-ways-in-table-planet_osm_line">https://help.openstreetmap.org/questions/40888/osm2pgsql-import-splits-ways-in-table-planet_osm_line</a><br>
Cheers,</p>

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