Reference URL of page 256 is not working

anthonydb / practical-sql

Code and Data for the First Edition of "Practical SQL" by Anthony DeBarros, published by No Starch Press (2018).

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Reference URL of page 256 is not working #19

Open bennybhlin opened 5 years ago

bennybhlin commented 5 years ago

Just found that reference UR of page-256 (http://workshops.boundlessgeo.com/postgis-intro/knn.html) is not working with '403 Forbidden' and "Code: Access Denied'

Seems this page turned to a part of a charged course ?

403 Forbidden

Code: AccessDenied
Message: Access Denied
RequestId: 7945F1E31027A96F
HostId: rPVP8pk7yqIVacPTSsvXFOPLKU1oX7keJPIkjAWKIRti51wC3EtEJpog8BPeBw5rdSHJcRprFxA=

anthonydb commented 5 years ago

Ah, that's too bad. Looks like they did indeed move it behind a paywall.

You could substitute the PostGIS docs page on K Nearest Neighbor function: https://postgis.net/docs/geometry_distance_knn.html