[PostGIS] #5831: Test distance changes for performance

[PostGIS]

#5831: Test distance changes for performance
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 Reporter:  pramsey  |      Owner:  pramsey
     Type:  defect   |     Status:  assigned
 Priority:  medium   |  Milestone:  PostGIS 3.5.2
Component:  postgis  |    Version:  3.4.x
 Keywords:           |
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 Changes at the base of the distance stack in
 https://trac.osgeo.org/postgis/ticket/5782 may have affected performance
 of distance calculations, do a quick test of that.

 Also look at hypot() as a built-in that might improve on our code for
 performance.
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Ticket URL: <https://trac.osgeo.org/postgis/ticket/5831>
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