[postgis-tickets] [PostGIS] #3713: Data loss on big encoded polyline
PostGIS
trac at osgeo.org
Thu Nov 30 12:47:43 PST 2017
#3713: Data loss on big encoded polyline
----------------------------+---------------------------
Reporter: ismail BASKIN | Owner: dbaston
Type: defect | Status: new
Priority: medium | Milestone: PostGIS 2.3.5
Component: postgis | Version: 2.3.x
Resolution: | Keywords:
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Comment (by pramsey):
Here's an example that is small enough to debug:
{{{
with d as (select 'SRID=4326;LINESTRING(33.6729 38.7071,33.6692
38.701,33.6673 38.6972,33.6626 38.6871)'::geometry as g),
e as (
select g, ST_LineFromEncodedPolyline(ST_AsEncodedPolyline(g)) as gl
from d
)
select
st_astext(g), ST_AsEncodedPolyline(g), st_npoints(g),
st_astext(gl), st_npoints(gl)
from e
}}}
yuck.
--
Ticket URL: <https://trac.osgeo.org/postgis/ticket/3713#comment:9>
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