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Add a note about possible semantic change

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git-svn-id: http://svn.osgeo.org/postgis/trunk@6432 b70326c6-7e19-0410-871a-916f4a2858ee
This commit is contained in:
Sandro Santilli 2010-12-17 17:19:07 +00:00
parent 4dcc6fc5df
commit ae20e8786a
1 changed files with 3 additions and 1 deletions
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4
topology/sql/populate.sql
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@ -118,10 +118,12 @@ LANGUAGE 'plpgsql';
-- AddEdge(atopology, line)
--
-- Add an edge primitive to a topology and get it's identifier.
-- Edge endpoints will also be added as nodes.
-- Edge endpoints will be added as nodes if missing.
--
-- An exception is raised if the given line crosses an existing
-- node or interects with an existing edge on anything but endnodes.
-- TODO: for symmetry with AddNode, it might be useful to return the
-- id of an equal existing edge (currently raising an exception)
--
-- The newly added edge has "universe" face on both sides
-- and links to itself.