[postgis-users] ST_Clip on tiled rasters

2018-02-05 Thread J Payne
Hi. I am desperate for advice on a very simple problem. I’ve got an out-of-db raster table that contains a time-series of images of a large area (one image per date), and it is tiled. It’s about 20,000 rows in all and I’m trying to clip it with a polygon so that I get back a smaller raster. 

[postgis-users] ST_Clip on tiled rasters

2018-02-02 Thread J Payne
Hi.  I have a problem that is driving me nuts.  I’ve got an out-of-db raster table that contains a time series of images of the same area (one per date), and it is tiled. I’m trying to clip a section of it with a polygon. If I union the tiles for a particular date and then clip them, I get th