[mynewtb]

Either your input data is horrendously bad or you are doing it wrong.

What do you use to ingest Shapefiles into PostGIS? Can you provide an example with files where you failed?

[quaunaut]

Generally I've been harvesting them manually using tools like RGeo or ex_shape.

I also don't see how I could be "doing it bad" since the thing I need to do is to use data from sets that use multiple SRIDs. If I can't reliably pick out the SRID, I also can't reliably bring them all into my DB.