从select语句中调用返回值

Question

我需要在postgresql表“polygontable”中插入一个多边形，然后返回其（the_geom）值以进一步查询。我想抓住“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

如果您使用的是9.1，则可以执行以下操作：

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;