[postgis-tickets] [PostGIS] #3982: ST_AsEncodedPolyline('SRID=4326; LINESTRING EMPTY') fails

[PostGIS]

#3982: ST_AsEncodedPolyline('SRID=4326;LINESTRING EMPTY') fails
---------------------+---------------------------
 Reporter:  komzpa   |      Owner:  pramsey
     Type:  defect   |     Status:  new
 Priority:  medium   |  Milestone:  PostGIS 2.4.3
Component:  postgis  |    Version:  2.4.x
 Keywords:           |
---------------------+---------------------------
 ST_AsEncodedPolyline('SRID=4326;LINESTRING EMPTY') fails:


 {{{
 [local] gis at gis=# select ST_AsEncodedPolyline('SRID=4326;LINESTRING
 EMPTY');
 ERROR:  XX000: getPoint2d_cp: point offset out of range
 LOCATION:  pg_error, lwgeom_pg.c:162
 Time: 0,263 ms
 }}}


 It should be empty string. Reverse works:

 {{{
 [local] gis at gis=# select ST_AsText(ST_LineFromEncodedPolyline(''));
 ┌──────────────────┐
 │    st_astext     │
 ├──────────────────┤
 │ LINESTRING EMPTY │
 └──────────────────┘
 (1 row)

 Time: 2,080 ms
 }}}

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/3982>
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