[postgis-users] ST_Union Function error

[Mahavir Trivedi]

Dear

 i am naive postgis user
 Actaully  my exercise is that :" I have 540 MB  tiff image stored in
postgis database using tile base manner.

 i  need to export image within specified range pixel value e,g 10 to 200
 cuurently i am using export tool as Gdal 1.9 .



with regards
mahavir trivedi
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