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我试图找出如何写这个查询的ActiveRecord的等价:如何用ActiveRecord查询多个表?
SELECT id FROM projects, neighborhoods
WHERE ST_WITHIN(projects.lonlat, neighorhoods.the_geom);
我试了几种方法,包括
Neighborhood.select(:id).from('projects').where("ST_WITHIN(projects.lonlat, neighorhoods.the_geom)")
但结果查询始终解析到一个表。谁能帮我吗?