Reference URL of page 256 is not working

[bennybhlin]

Hi

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]

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