[PostGIS] #5496: ST_Clip(raster, geom) include new method to pixel selection: touch

[PostGIS]

#5496: ST_Clip(raster, geom) include new method to pixel selection: touch
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  Reporter:  latot        |      Owner:  robe
      Type:  enhancement  |     Status:  new
  Priority:  medium       |  Milestone:  PostGIS 3.5.0
 Component:  raster       |    Version:  3.4.x
Resolution:               |   Keywords:
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Comment (by robe):

 I have work in progress here -
 https://git.osgeo.org/gitea/postgis/postgis/pulls/166

 I decided to stick with default touched=false for backward compatibility
 and that is also the default for ST_AsRaster (which already has a touched
 argument) - https://postgis.net/docs/manual-dev/en/RT_ST_AsRaster.html

 I still need to add tests for the touched case and fix the upgrade.  strk
 -- I don't think your replaces likes "double precision", so assuming I
 have to use float8?
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Ticket URL: <https://trac.osgeo.org/postgis/ticket/5496#comment:5>
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