[PostGIS] #2137: [raster] Add handling for overviews present in source rasters

[PostGIS]

#2137: [raster] Add handling for overviews present in source rasters
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  Reporter:  dustymugs    |      Owner:  dustymugs
      Type:  enhancement  |     Status:  closed
  Priority:  medium       |  Milestone:  PostGIS 3.7.0
 Component:  raster       |    Version:  master
Resolution:  fixed        |   Keywords:
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Changes (by komzpa):

 * milestone:  PostGIS Fund Me => PostGIS 3.7.0

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/2137#comment:3>
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