GIS: How to fix 'Error, query must return columns 'id', 'source', 'target' and 'cost''?

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GIS: How to fix "Error, query must return columns 'id', 'source', 'target' and 'cost'"?

  1. Roel Van de Paar
  2. GIS
  3. Geographic Information Systems
  4. answers
  5. pgrouting
  6. postgis
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