Commit 400ad278 authored by Sandro Santilli's avatar Sandro Santilli

Set availability of support function for KNN index

Fixes upgrade from 2.1 to 2.2+ Closes #3978 in 2.4 branch (2.4.4) git-svn-id: http://svn.osgeo.org/postgis/branches/2.4@16358 b70326c6-7e19-0410-871a-916f4a2858ee
parent d61e1558
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