[postgis-users] import large multipolygon
Jean David TECHER
david.techer at davidgis.fr
Mon Jul 7 10:24:03 PDT 2008
No problem for mee to
cat testtable |psql osmgis
then in psql
osmgis=# select summary(the_geom) from testtable;
summary
---------------------------------
MultiPolygon[B] with 1 elements
Polygon[] with 1 rings
ring 0 has 8655 points
strange?
Quoting Kevin Neufeld <kneufeld at refractions.net>:
> No, I think astext() is returing the geometry, but i think you're
> seeing a large wrap around as postgres tries to add the column title to
> your resultset.
>
> If you're using psql, try this.
>
> postgis=# \t
> Showing only tuples.
>
> postgis=# SELECT ST_AsText(the_geom) FROM testtable;
> MULTIPOLYGON(((-80.1547175872617 42.7394116625306,...
>
> Cheers,
> Kevin
>
>
> sub3 wrote:
>> Interesting, I run the same query & get your same results... so that shows
>> the object is there. So why would astext(the_geom) return nothing? Maybe
>> it doesn't return something when the size is too large?
>>
>> Thanks!
>>
>>
>> Kevin Neufeld wrote:
>>> I don't have any problems loading your sql file into my database
>>> (running PG8.3.3, PGIS 1.3.3)
>>>
>>> postgis=# \i testtable.sql
>>> psql:testtable.sql:3: NOTICE: CREATE TABLE will create implicit
>>> sequence "testtable_gid_seq" for serial column "testtable.gid"
>>> psql:testtable.sql:3: NOTICE: CREATE TABLE / PRIMARY KEY will
>>> create implicit index "testtable_pkey" for table "testtable"
>>> CREATE TABLE
>>> addgeometrycolumn
>>> --------------------------------------------------------------
>>> kneufeld.testtable.the_geom SRID:-1 TYPE:MULTIPOLYGON DIMS:2
>>>
>>> (1 row)
>>>
>>>
>>> postgis=# select ST_GeometryType(the_geom), ST_IsValid(the_geom),
>>> ST_NPoints(the_geom) from testtable;
>>> st_geometrytype | st_isvalid | st_npoints
>>> -----------------+------------+------------
>>> ST_MultiPolygon | t | 8655
>>> (1 row)
>>>
>>>
>>> -- Kevin
>>>
>>> sub3 wrote:
>>>> Hi,
>>>>
>>>> I am having a problem. I convert a shp file using shp2pgsql. One of the
>>>> multipolgons is very large (line is about 277k characters long). After I
>>>> import into postgresql, this geometry is empty.
>>>> No error from postgis.
>>>> No error from postgresql.
>>>>
>>>> I am only making a guess that it is the line size, I am not sure. Is
>>>> there
>>>> a setting which would fix this?
>>>>
>>>> Thanks for any help.
>>>>
>>>> ---
>>>> Attached is the .sql script.
>>>> http://www.nabble.com/file/p18285042/testtable.sql testtable.sql
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>>>
>>>
>>
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Jean David TECHER
06 60 46 85 05
04 99 77 17 87
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