BEGIN;

UPDATE edge_table SET cost = sign(cost), reverse_cost = sign(reverse_cost);
SELECT plan(56);


SELECT has_function('pgr_chinesepostmancost',
    ARRAY['text']);

SELECT function_returns('pgr_chinesepostmancost',
    ARRAY['text'],
    'double precision');

DELETE FROM edge_table WHERE id > 10;

SELECT style_dijkstra('pgr_chinesepostmancost', ')');



SELECT finish();
ROLLBACK;
