[pdal] pgpointcloud : is pdal compressing pcpatch before sending them to database?

[Rémi Cura]

Thanks guys ^^

So if I understand well for the moment all compression/decompression should
happen in database,
untill the code for compression/decompression is made into a standard lib.

Cheers,
Rémi

2016-04-28 18:23 GMT+02:00 Howard Butler <howard at hobu.co>:

>
> > On Apr 28, 2016, at 10:58 AM, Paul Ramsey <pramsey at cleverelephant.ca>
> wrote:
> >
> > Pgpointcloud lets you extract compressed results. If you don't apply
> > the PCUncompress function, you get the compressed version, as it lives
> > in the disk serialization. I didn't make this a standard thing for
> > PDAL driver because I didn't want people to get into the habit of
> > copying the comressor/decompressor code everywhere. If we had a
> > standard compression like laszip in use, so standard decompressors
> > could handle it, that would be better.
>
> lazperf compression, which is used by PDAL for both the Oracle and SQLite
> drivers, is on the roadmap for pgpointcloud but thus far hasn't been
> implemented.
>
> https://github.com/pgpointcloud/pointcloud/issues/81
>
> lazperf has not been turned into a system library yet, and that might be
> the biggest impediment to making it available to both pgpointcloud and
> PDAL. The software development to support it inside of the pgpointcloud
> extension would not be too difficult, however.
>
> Howard
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