0

I have added the Raster support to my PostGIS database program. Now, I need to update all values in the raster (one band only) several times a day.

I have found and tested these two options

Both methods works fine with same results, speeds according to my tests seems also almost the same (but I may have done some errors there).

What is a better way from those twos, or is there some third option?

1 Answer 1

2

I think using ST_SetValues is better. The reason is the wkb structure of raster may change in future version so your code may break at that point. ST_SetValues since its a user facing function will always be updated to be inline with internal structure.

Also forgot to add -- that's an old ancient doxygen link when raster was separated (and www.postgis.org is not in use anymore) . raster doxygen is now part of core postgis doxygen so use this instead:

http://postgis.net/docs/doxygen/2.1/dirs.html

Most up to date doxygen links are here: http://postgis.net/development

2
  • Thank you... And if I "neglect" the point, that WKB may change, should I use WKB? Aug 1, 2015 at 17:18
  • I would say whichever is faster and/or easiest to write. If they are close I would go with easiest to write.
    – Regina Obe
    Aug 2, 2015 at 2:09

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.