SELECT st_geomfromtext ( 'POINT(' || x || ' ' || y || ')' , 4326 ) AS geohazard_point_geom , risk_level geohazard_all_english WHERE risk_level IN ( '较高' , '高' ) ) bb , ( SELECT geom FROM department_info WHERE ID = '管道' ) cc WHERE ST_Covers ( cc . geom , bb . geohazard_point_geom ) = 't'
SELECT
 COUNT ( * ),'自定义数据' as title
SELECT
 st_geomfromtext ( 'POINT(' || x || ' ' || y || ')', 4326 ) AS geohazard_point_geom,
 risk_level 
 geohazard_all_english 
WHERE
 risk_level IN ('较高', '高' ) 
 ) bb,
 ( SELECT geom FROM department_info WHERE ID = '管道' ) cc 
WHERE
 ST_Covers ( cc.geom, bb.geohazard_point_geom ) = 't' 

查询结果:
SQL:postgresql查询结果加一个自定义的列_数据_02