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set client_min_messages to WARNING;
\i ../invalid_topology.sql
-- Validate full topology, store invalidities in a table
CREATE TABLE invalid_topology.invalidities AS
SELECT * FROM topology.validatetopology('invalid_topology');
SELECT * FROM invalid_topology.invalidities
ORDER BY 1,2,3;
-- Test bbox-limited checking
-- See https://trac.osgeo.org/postgis/ticket/4936
CREATE TABLE invalid_topology.grid_invalidities AS
WITH
extents AS (
SELECT ST_Envelope(ST_Extent(geom)) env
FROM invalid_topology.edge
UNION
SELECT ST_Envelope(ST_Extent(geom))
FROM invalid_topology.node
UNION
SELECT ST_Envelope(ST_Extent(mbr))
FROM invalid_topology.face
),
topo_envelope AS (
SELECT ST_Envelope(ST_Union(env)) env
FROM extents
),
-- roughly a 8x5 grid on whole topology extent
grid AS (
SELECT *
FROM ST_SquareGrid(
ST_Length(
ST_BoundingDiagonal(
( SELECT env FROM topo_envelope )
)
)/8.0,
( SELECT env FROM topo_envelope )
)
)
SELECT g.i, g.j, vt.*
FROM grid g,
LATERAL topology.validatetopology('invalid_topology', g.geom) vt ;
-- Check that all errors found by the catch-all validator
-- are also cought by the per-cell validator
CREATE TABLE invalid_topology.missing_invalidities AS
SELECT error, id1, id2 FROM invalid_topology.invalidities
EXCEPT
SELECT error, id1, id2 FROM invalid_topology.grid_invalidities
;
SELECT '#4936', 'missing_count', count(*)
FROM invalid_topology.missing_invalidities ;
SELECT '#4936', 'missing', *
FROM invalid_topology.missing_invalidities
ORDER BY 1, 2, 3 ASC;
-- clean up
SELECT topology.DropTopology('invalid_topology');
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