[postgis-tickets] [PostGIS] #5028: ST_AsFlatGeobuf crashes on mixed geometry input

[PostGIS]

#5028: ST_AsFlatGeobuf crashes on mixed geometry input
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  Reporter:  Björn Harrtell  |      Owner:  Björn Harrtell
      Type:  defect          |     Status:  assigned
  Priority:  medium          |  Milestone:  PostGIS 3.2.0
 Component:  postgis         |    Version:  master
Resolution:                  |   Keywords:
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Comment (by Björn Harrtell):

 This is because I use the first geometry to determine geometry type at
 https://github.com/postgis/postgis/blob/eda70258f373c1ad88e1851f194c891ad8d9aff4/deps/flatgeobuf/flatgeobuf_c.cpp#L56.

 Adding an option to override this doesn't feel right.

 At least I should be able to detect this situation and bail to avoid the
 crash.

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/5028#comment:3>
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