ValidateTopology
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Name

ValidateTopology — Returns a set of validatetopology_returntype objects detailing issues with topology.

Synopsis

setof validatetopology_returntype ValidateTopology(varchar topology_schema_name);

Description

Returns a set of validatetopology_returntype objects detailing issues with topology. List of possible errors and what the returned ids represent are displayed below:

Errorid1id2
edge crosses nodeedge_idnode_id
invalid edgeedge_idnull
edge not simpleedge_idnull
edge crosses edgeedge_idedge_id
edge start node geometry mis-matchedge_idnode_id
edge end node geometry mis-matchedge_idnode_id
face without edgesface_idnull
face has no ringsface_idnull
face overlaps faceface_idface_id
face within faceinner face_idouter face_id

Availability: 1.0.0

Enhanced: 2.0.0 more efficient edge crossing detection and fixes for false positives that were existent in prior versions.

Changed: 2.2.0 values for id1 and id2 were swapped for 'edge crosses node' to be consistent with error description.

Examples

SELECT * FROM  topology.ValidateTopology('ma_topo');
      error        | id1 | id2
-------------------+-----+-----
face without edges |   0 |

See Also

validatetopology_returntype, Topology_Load_Tiger

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