File: TopoGeo_addLinestring.sql

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SELECT topology.CreateTopology('topoperf');
\timing on
SELECT count(*) FROM (
  SELECT topology.TopoGeo_addLinestring('topoperf', g) FROM (
    SELECT ST_ExteriorRing(ST_Buffer(ST_MakePoint(x, y), 10, 10)) g FROM
      generate_series(-15,15,5) x,
      generate_series(-15,15,5) y
  ) foo
) bar;
\timing off
SELECT topology.DropTopology('topoperf');