With osm2po 5.1, I can get the osm2po router running
D:\osm2po-5.1.0>java -Xmx1024m -jar osm2po-core-5.1.0-signed.jar
prefix=vie ..\vienna_austria.osm.pbf
but the resuting vie
folder only contains the osm2po graph .gph and no .sql file for import into PostGIS. I don't get any warnings and couldn't find any new instructions in the documentation related to writing .sql files.
In 5.0, the .sql file is created as expected.