[postgis-tickets] [PostGIS] #4744: St_AsMVT Errors on Some Polygons with Inner Rings

[PostGIS]

#4744: St_AsMVT Errors on Some Polygons with Inner Rings
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 Reporter:  reyemtm       |      Owner:  pramsey
     Type:  defect        |     Status:  new
 Priority:  medium        |  Milestone:  PostGIS 3.1.0
Component:  postgis       |    Version:  3.0.x
 Keywords:  vector tiles  |
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 This is possibly related to issue #3712. I have an impervious surface
 layer which is a multipolygon layer with many inner rings. Above zoom
 level 18, so 0-17, the "holes" get filled in using Mapbox GL JS, while the
 GeoJSON export of this layer when used directly draws with minimal
 artifacts. It would seem like this is due to simplification, not sure. I
 did try to use the ST_AsMVT(ST_MakeValid(geom)) but that did nothing.

 For an example picture see the issue I made on the pg_tileserv repo -
 https://github.com/CrunchyData/pg_tileserv/issues/48. This has a link to
 the GeoJSON data as well.

 If there is anything I should try or other tricks let me know.

 Thanks

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/4744>
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