[pdal] Request: add option for filename column

[Howard Butler]

> On Oct 5, 2015, at 7:17 AM, Andrew Bell <andrew.bell.ia at gmail.com> wrote:
> 
> Could one not store this in a separate table along with the PCID and then join?

Additionally, our typical scenario is to use PDAL pipeline's "serialization" method to fetch the pcid that was written by PDAL and then insert/update any data using that information. This allows you to link up what was written with your own processing.

> $ pdal pipeline myfile.xml --pipeline-serialization serialized.xml

Hope this helps,

Howard