[postgis-tickets] [PostGIS] #3704: ST_AsX3D returns random data / crashes client

[PostGIS]

#3704: ST_AsX3D returns random data / crashes client
------------------------+---------------------------
 Reporter:  Mike Toews  |      Owner:  pramsey
     Type:  defect      |     Status:  new
 Priority:  critical    |  Milestone:  PostGIS 2.3.3
Component:  postgis     |    Version:  2.3.x
 Keywords:              |
------------------------+---------------------------
 Testing ST_AsX3D on various geometries gives varied and interesting
 results with PostGIS 2.3 on Windows. I think these are critical bugs,
 because they return random data or crash the client.

  `SELECT ST_AsX3D('POINT EMPTY');`:: has unexpected behavior, often
 returning a zero-length string, or random junk like `@` or `2.3.dll`, but
 sometimes raising:
 > ERROR:  invalid byte sequence for encoding "UTF8": 0xec 0xa3

  `SELECT ST_AsX3D('LINESTRING EMPTY');`:: kills the client:
 > server closed the connection unexpectedly
 >         This probably means the server terminated abnormally
 >         before or while processing the request.
 > The connection to the server was lost. Attempting reset: Failed.
 > !>

 Non-critical bugs with other geometry types will be filed in the next bug
 report...

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/3704>
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