Update gestor.json

Signed-off-by: Joao Kieras <jpko19@inf.ufpr.br>

gestor.json

@@ -2,7 +2,19 @@
     "pairing_description": "Tabela de gestores",
     "data_source": "Microdados do Censo Escolar/INEP (arquivo Gestores)",
     "pk": ["ano_censo", "gestor_id"],
-    "foreign_keys": ["regiao_id", "estado_id", "municipio_id"],
+    "foreign_keys": [
+        {"keys": ["regiao_id"],
+         "reference_columns": ["id"],
+         "reference_table": "regiao"
+        },
+        {"keys": ["estado_id"],
+        "reference_columns": ["id"],
+        "reference_table": "estado"
+        },
+        {"keys": ["municipio_id"],
+        "reference_columns": ["id"],
+        "reference_table": "municipio"
+        }],
     "columns": {
         "ano_censo": ["INT", "ANO"],
         "gestor_id": ["VARCHAR(255)", "CEBGE004N0"],