2psql option uses empty string '' instead of NULL when data is missing

[elektronisk]

I'm trying to load a SOSI file to a postgis database. It works well, but I note that an empty string '' is used if a field is missing, when it is instead common to use NULL. For me it works to hack line 207 in converter_sosi2psql.cpp, to always use "NULL,", but it might be useful to others to be able to select the behavior with a command line option.

[espena]

You're perfectly right. I'll address this issue in an upcoming commit. Thanks for providing useful feedback. Please let me know if other issues arise.