[postgis-tickets] [PostGIS] #4908: ST_AsGeoJSON in POSTGIS-2.5 different than ST_AsGeoJSON in POSTGIS-3.0

[PostGIS]

#4908: ST_AsGeoJSON in POSTGIS-2.5 different than ST_AsGeoJSON in POSTGIS-3.0
---------------------------+---------------------------
  Reporter:  maheshpusala  |      Owner:  pramsey
      Type:  defect        |     Status:  new
  Priority:  high          |  Milestone:  PostGIS 3.1.2
 Component:  postgis       |    Version:  2.5.x
Resolution:                |   Keywords:
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Comment (by mdavis):

 This is due to the output coordinates being rounded off slightly in 3.0.

 For example, in 2.9 there is a coordinate
 {{{
 -93.1687103416383 41.8543515079768
 }}}
 In 3.0 this is output as:
 {{{
  -93.168710342 41.854351508
 }}}
 This rounding is enough to cause the two polygons containing this point to
 become adjacent and hence invalid.

 Is there a different default precision set in 3.0 GeoJSON output?

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/4908#comment:4>
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