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Is there a maximum size of a raster layer in PostGIS where regular blocking is supported? [on hold]
The Next CEO of Stack OverflowIs there equivalent to feature datasets supported by PostGIS?Are there limitations using a PostGIS out-db raster?PostGIS Raster: Outputting raster into GDAL supported file?Original Size from Tiled PostGIS RasterPostGIS raster maximum number of bands?Poor performance with storing large rasters in PostGIS and visualising in QGISPostGIS Raster Tile Size Affects ST_Intersect?PostGIS raster table: How to get the global maximum (or minimum) value?PostGIS Raster - geocoordinates - where is pixel centerHow to cover data by circles, limited by a maximum of values?
I'm using raster2pgsql to load a 5m DTM of England into Postgis. I'm trying to add the regular blocking constraint, but when I try this, it fails with the error:
NOTICE: Unable to create coverage raster. Cannot add coverage tile constraint: rt_raster_new: Dimensions requested exceed the maximum (65535 x 65535) permitted for a raster (XX000)
Which is generated after loading SQL generated by: raster2pgsql -s 27700 -t 50x50 -I -C -r -e -Y *.asc terrain (I've also tried including -P, 256x256 tiles and no tiling).
Googling for this, the only reference to this error I can find is the relevant source SQL source and (if I understand it correctly) I think it's trying to make a single raster image out of the hulls of all the tiles in my DTM layer.
Have I understood this correctly, and does this mean that there is a maximum total size of 65535 x 65535 for a PostGIS raster layer if you want to use regular blocking?
As a cheeky additional question, I've been struggling to find much information about regular blocking and seek any references that might explain the benefits of using it (I started experimenting with it in order to improve QGIS performance in loading this data).
postgis raster
edited yesterday
PolyGeo♦
53.8k1781245
asked yesterday
GeoffGeoff
1163
put on hold as too broad by PolyGeo♦ yesterday
Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.
add a comment |
I'm using raster2pgsql to load a 5m DTM of England into Postgis. I'm trying to add the regular blocking constraint, but when I try this, it fails with the error:
NOTICE: Unable to create coverage raster. Cannot add coverage tile constraint: rt_raster_new: Dimensions requested exceed the maximum (65535 x 65535) permitted for a raster (XX000)
Which is generated after loading SQL generated by: raster2pgsql -s 27700 -t 50x50 -I -C -r -e -Y *.asc terrain (I've also tried including -P, 256x256 tiles and no tiling).
Googling for this, the only reference to this error I can find is the relevant source SQL source and (if I understand it correctly) I think it's trying to make a single raster image out of the hulls of all the tiles in my DTM layer.
Have I understood this correctly, and does this mean that there is a maximum total size of 65535 x 65535 for a PostGIS raster layer if you want to use regular blocking?
As a cheeky additional question, I've been struggling to find much information about regular blocking and seek any references that might explain the benefits of using it (I started experimenting with it in order to improve QGIS performance in loading this data).
postgis raster
edited yesterday
PolyGeo♦
53.8k1781245
asked yesterday
GeoffGeoff
1163
put on hold as too broad by PolyGeo♦ yesterday
Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.
As of regular blocking, there is more information here: trac.osgeo.org/postgis/wiki/WKTRaster/Documentation01
– Pierre Racine
yesterday
You have appended an unmarked question onto the end of the one question permitted per question via the Tour.
– PolyGeo♦
yesterday
add a comment |
I'm using raster2pgsql to load a 5m DTM of England into Postgis. I'm trying to add the regular blocking constraint, but when I try this, it fails with the error:
NOTICE: Unable to create coverage raster. Cannot add coverage tile constraint: rt_raster_new: Dimensions requested exceed the maximum (65535 x 65535) permitted for a raster (XX000)
Which is generated after loading SQL generated by: raster2pgsql -s 27700 -t 50x50 -I -C -r -e -Y *.asc terrain (I've also tried including -P, 256x256 tiles and no tiling).
Googling for this, the only reference to this error I can find is the relevant source SQL source and (if I understand it correctly) I think it's trying to make a single raster image out of the hulls of all the tiles in my DTM layer.
Have I understood this correctly, and does this mean that there is a maximum total size of 65535 x 65535 for a PostGIS raster layer if you want to use regular blocking?
As a cheeky additional question, I've been struggling to find much information about regular blocking and seek any references that might explain the benefits of using it (I started experimenting with it in order to improve QGIS performance in loading this data).
postgis raster
edited yesterday
PolyGeo♦
53.8k1781245
asked yesterday
GeoffGeoff
1163
I'm using raster2pgsql to load a 5m DTM of England into Postgis. I'm trying to add the regular blocking constraint, but when I try this, it fails with the error:
NOTICE: Unable to create coverage raster. Cannot add coverage tile constraint: rt_raster_new: Dimensions requested exceed the maximum (65535 x 65535) permitted for a raster (XX000)
Which is generated after loading SQL generated by: raster2pgsql -s 27700 -t 50x50 -I -C -r -e -Y *.asc terrain (I've also tried including -P, 256x256 tiles and no tiling).
Googling for this, the only reference to this error I can find is the relevant source SQL source and (if I understand it correctly) I think it's trying to make a single raster image out of the hulls of all the tiles in my DTM layer.
Have I understood this correctly, and does this mean that there is a maximum total size of 65535 x 65535 for a PostGIS raster layer if you want to use regular blocking?
As a cheeky additional question, I've been struggling to find much information about regular blocking and seek any references that might explain the benefits of using it (I started experimenting with it in order to improve QGIS performance in loading this data).
postgis raster
postgis raster
edited yesterday
PolyGeo♦
53.8k1781245
asked yesterday
GeoffGeoff
1163
edited yesterday
PolyGeo♦
53.8k1781245
asked yesterday
GeoffGeoff
1163
edited yesterday
PolyGeo♦
53.8k1781245
edited yesterday
PolyGeo♦
53.8k1781245
edited yesterday
PolyGeo♦
53.8k1781245
53.8k1781245
asked yesterday
GeoffGeoff
1163
asked yesterday
GeoffGeoff
1163
asked yesterday
GeoffGeoff
1163
1163
put on hold as too broad by PolyGeo♦ yesterday
Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.
put on hold as too broad by PolyGeo♦ yesterday
Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.
As of regular blocking, there is more information here: trac.osgeo.org/postgis/wiki/WKTRaster/Documentation01
– Pierre Racine
yesterday
You have appended an unmarked question onto the end of the one question permitted per question via the Tour.
– PolyGeo♦
yesterday
add a comment |
As of regular blocking, there is more information here: trac.osgeo.org/postgis/wiki/WKTRaster/Documentation01
– Pierre Racine
yesterday
You have appended an unmarked question onto the end of the one question permitted per question via the Tour.
– PolyGeo♦
yesterday
As of regular blocking, there is more information here: trac.osgeo.org/postgis/wiki/WKTRaster/Documentation01
– Pierre Racine
yesterday
As of regular blocking, there is more information here: trac.osgeo.org/postgis/wiki/WKTRaster/Documentation01
– Pierre Racine
yesterday
You have appended an unmarked question onto the end of the one question permitted per question via the Tour.
– PolyGeo♦
yesterday
You have appended an unmarked question onto the end of the one question permitted per question via the Tour.
– PolyGeo♦
yesterday
add a comment |
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As of regular blocking, there is more information here: trac.osgeo.org/postgis/wiki/WKTRaster/Documentation01
– Pierre Racine
yesterday
You have appended an unmarked question onto the end of the one question permitted per question via the Tour.
– PolyGeo♦
yesterday