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https://github.com/simonw/datasette/issues/294#issuecomment-393547960 | https://api.github.com/repos/simonw/datasette/issues/294 | 393547960 | MDEyOklzc3VlQ29tbWVudDM5MzU0Nzk2MA== | 9599 | 2018-05-31T14:25:43Z | 2018-05-31T14:25:43Z | OWNER | SpatialLite columns are actually quite a bit more interesting than this - they also have a `geometry_type` (point, polygon, linestring etc), a `coord_dimension` (usually 2 but can be higher) and an `srid`. For example: https://datasette-publish-spatialite-demo.now.sh/spatialite-test-c88bc35/geometry_columns ![2018-05-31 at 7 22 am](https://user-images.githubusercontent.com/9599/40787843-6f9600ee-64a3-11e8-84e5-64d7cc69603a.png) The SRID here is particularly interesting, because it helps hint at the fact that the results from these queries won't be latitude/longitude co-ordinates - which means that `AsGeoJSON()` won't return results that can be easily rendered by Leaflet: https://datasette-publish-spatialite-demo.now.sh/spatialite-test-c88bc35?sql=select+AsGeoJSON(Geometry)+from+HighWays%20limit1 Compare with https://timezones-api.now.sh/timezones-a99b2e3/geometry_columns: ![2018-05-31 at 7 25 am](https://user-images.githubusercontent.com/9599/40787991-d2650756-64a3-11e8-936e-2dcce7dd1515.png) | { "total_count": 0, "+1": 0, "-1": 0, "laugh": 0, "hooray": 0, "confused": 0, "heart": 0, "rocket": 0, "eyes": 0 } |
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https://github.com/simonw/datasette/issues/294#issuecomment-393548602 | https://api.github.com/repos/simonw/datasette/issues/294 | 393548602 | MDEyOklzc3VlQ29tbWVudDM5MzU0ODYwMg== | 9599 | 2018-05-31T14:27:41Z | 2018-05-31T14:27:56Z | OWNER | Presumably the difference in primary key structure between those two is caused by the fact that the `spatialite-test` database (actually https://www.gaia-gis.it/spatialite-2.3.1/test-2.3.sqlite.gz downloaded from https://www.gaia-gis.it/spatialite-2.3.1/resources.html ) was created by a much older version of SpatialLite - presumably v2.3.1 | { "total_count": 0, "+1": 0, "-1": 0, "laugh": 0, "hooray": 0, "confused": 0, "heart": 0, "rocket": 0, "eyes": 0 } |
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https://github.com/simonw/datasette/issues/294#issuecomment-393549215 | https://api.github.com/repos/simonw/datasette/issues/294 | 393549215 | MDEyOklzc3VlQ29tbWVudDM5MzU0OTIxNQ== | 9599 | 2018-05-31T14:29:37Z | 2018-05-31T14:29:37Z | OWNER | Also of note: `spatialite-test` uses readable strings in the `type` column, while `timezones` has a `geometry_type` column with integers in it. Those integers are documented here: https://www.gaia-gis.it/fossil/libspatialite/wiki?name=switching-to-4.0 ![2018-05-31 at 7 29 am](https://user-images.githubusercontent.com/9599/40788210-5d0f0dd4-64a4-11e8-8141-0386b5c7b384.png) | { "total_count": 0, "+1": 0, "-1": 0, "laugh": 0, "hooray": 0, "confused": 0, "heart": 0, "rocket": 0, "eyes": 0 } |
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https://github.com/simonw/datasette/issues/294#issuecomment-393557968 | https://api.github.com/repos/simonw/datasette/issues/294 | 393557968 | MDEyOklzc3VlQ29tbWVudDM5MzU1Nzk2OA== | 9599 | 2018-05-31T14:55:46Z | 2018-05-31T14:55:46Z | OWNER | I'm not sure what the best JSON shape for this would be considering the potential complexity of geospatial columns. I do think it's worth exposing these in the inspect JSON though, mainly so Datasette Registry can keep track of all of the openly available geodata out there. | { "total_count": 0, "+1": 0, "-1": 0, "laugh": 0, "hooray": 0, "confused": 0, "heart": 0, "rocket": 0, "eyes": 0 } |
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https://github.com/simonw/datasette/issues/294#issuecomment-504882686 | https://api.github.com/repos/simonw/datasette/issues/294 | 504882686 | MDEyOklzc3VlQ29tbWVudDUwNDg4MjY4Ng== | 9599 | 2019-06-24T06:54:22Z | 2019-06-24T06:54:22Z | OWNER | Consider this when solving #465 | { "total_count": 0, "+1": 0, "-1": 0, "laugh": 0, "hooray": 0, "confused": 0, "heart": 0, "rocket": 0, "eyes": 0 } |
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https://github.com/simonw/datasette/issues/294#issuecomment-506801311 | https://api.github.com/repos/simonw/datasette/issues/294 | 506801311 | MDEyOklzc3VlQ29tbWVudDUwNjgwMTMxMQ== | 9599 | 2019-06-28T16:45:28Z | 2019-06-28T16:45:28Z | OWNER | This can happen as part of #531 | { "total_count": 0, "+1": 0, "-1": 0, "laugh": 0, "hooray": 0, "confused": 0, "heart": 0, "rocket": 0, "eyes": 0 } |
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