[pdal] Import point cloud into PostgreSQL/ pdal pipeline fails

[Thomas Cürten (WhereGroup)]

Hello everyboy,
I followed this tutorial 
(http://workshops.boundlessgeo.com/tutorial-lidar/) and  am trying to 
load las-data into postgreSQL by using the pipeline function from pdal.  
Unfortunately pdal generates an error when I try to upload the lidar 
data to the database: |pdal pipeline --input laz2pg.xml|

    PDAL: Couldn't create filter stage of type 'filters.cache'.

The content of my pipeline xml file is the following:

|<?xml version="1.0" encoding="utf-8"?> <Pipeline version="1.0"> <Writer 
type="writers.pgpointcloud"> <Option name="connection">host='localhost' 
dbname='lidar' user='postgres'</Option> <Option 
name="table">sthsm</Option> <Option name="srid">4326</Option> <Filter 
type="filters.chipper"> <Option name="capacity">400</Option> <Filter 
type="filters.cache"> <Reader type="readers.las"> <Option 
name="U4545539.las">/home/tcuerten/Dokumente/LASER/U4545539.las</Option> 
<Option name="spatialreference">EPSG:4326</Option> </Reader> </Filter> 
</Filter> </Writer> </Pipeline>|

I guess the problem is that I'm missing some drivers in my pdal 
version.I checked the pdal drivers with 'pdal --drivers' and apparently 
also the pgpointcloud drivers are missing.
Do you have any suggestions why i am missing these drivers and how i 
could add these drivers to pdal?

Thanks

Thomas

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