从select语句中调用返回值

Question

我需要将多边形插入到postgresql表“polygontable”中，然后返回其（the_geom）值以供进一步查询。我想要抓住“polygontable”中最近插入的实例。如何在SELECT语句中调用返回的“polygongeom”？

INSERT INTO polygontable (the_geom) 
VALUES (ST_SetSRID((ST_MakeValid(ST_GeomFromGeoJSON('"+JSON.stringify(payload)+"'))),4326)) returning the_geom as polygon_geom; 

SELECT st_intersects(polygon_geom, other_table.the_geom) 
from polygon_geom, other_table; 

Answer 1

如果你是9.1，你可以做这样的事情：

with inserted as 
(
    insert into ... 
    returning the_geom as new_geom 
) 
SELECT st_intersects(inserted.new_geom, other_table.the_geom) 
from inserted, other_table;