[PostGIS] #4678: Rewrite all raster callback functions in C

[PostGIS]

#4678: Rewrite all raster callback functions in C
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  Reporter:  robe    |      Owner:  dustymugs
      Type:  defect  |     Status:  closed
  Priority:  medium  |  Milestone:  PostGIS Fund Me
 Component:  raster  |    Version:  master
Resolution:  fixed   |   Keywords:
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Changes (by Darafei Praliaskouski <me@…>):

 * resolution:   => fixed
 * status:  new => closed

Comment:

 In [changeset:"a401974f93be7586b3c7dbe9f7d686f3cad16061/git" a401974/git]:
 {{{#!CommitTicketReference repository="git"
 revision="a401974f93be7586b3c7dbe9f7d686f3cad16061"
 Move raster st_sum4ma callback to C

 Replace the PL/pgSQL two-dimensional st_sum4ma callback with a C
 implementation while preserving nodata handling, including lazy
 replacement-value casting for wrapper-provided modes.

 Closes #4678

 Closes https://github.com/postgis/postgis/pull/1098
 }}}
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Ticket URL: <https://trac.osgeo.org/postgis/ticket/4678#comment:2>
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