Thanks for the errata. Corrected now.
From: postgis-users [mailto:postgis-users-boun...@lists.osgeo.org] On Behalf Of Jian He Sent: Wednesday, April 20, 2022 5:12 AM To: PostGIS Users Discussion <postgis-users@lists.osgeo.org> Subject: [postgis-users] PostGis introduction doc code block seems wrong.... 23. Validity — Introduction to PostGIS <https://postgis.net/workshops/postgis-intro/validity.html> last code block, -- Fix invalid and save the original UPDATE nyc_neighborhoods SET geom = ST_MakeValid(geom), invalid_geom = geom WHERE NOT ST_IsValid(geom); I think it should be: -- Fix invalid and save the original UPDATE nyc_neighborhoods SET geom = ST_MakeValid(geom), geom_invalid = geom WHERE NOT ST_IsValid(geom);
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