[OSM-dev] Deleting TIGER node tags

80n 80n80n at gmail.com
Sat Jun 27 09:26:56 BST 2009


This is all redundant information.  Be bold, delete it.

80n

On Fri, Jun 26, 2009 at 5:59 PM, Andy Allan <gravitystorm at gmail.com> wrote:

> Hello Devs,
>
> source = tiger_import_dch_v0.6_20070813
> tiger:county = St. Louis, MO
> tiger:tlid = 100111260:100111261:100111155:100111159
> tiger:upload_uuid = bulk_upload.pl-6143e1a9-589d-43a0-9248-e95658773ef4
>
> Stuff like this appears on every node in the US, which is a pain. I
> reckon it's all pointless, since all that info is on the ways in the
> first place, and it's worth deleting them. Here's some numbers from
> Matt to consider:
>
> Tiger node tags make up 85.43% of all node tags and take up:
>
>    * 12.97% of the bzipped planet size (805Mb).
>    * 34.68% of the uncompressed planet size.
>    * 42.20% of the lines in the planet.
>    * 31.51% of the parsing time of the planet (based on xmllint --stream).
>
> So, can anyone think of a good reason to keep them? Should we just
> delete tags like these? I'd love to hear if anyone think we should
> keep them (bearing in mind all the info, including ids, would remain
> on the ways in any case).
>
> http://wiki.openstreetmap.org/wiki/TIGER_fixup/node_tags
>
> Cheers,
> Andy
>
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>
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