sql = "SELECT ST_SetSRID(ST_Point(-71.1043443253471, 42.3150676015829),4326)"
geom = ActiveRecord::Base.connection.execute(sql)

Completed 500 Internal Server Error in 10ms (ActiveRecord: 4.6ms)

sql = "select st_x(st_transform(way,4674)), st_y(st_transform(way,4674)) from planet_osm_point where amenity like 'pub'"