PostgreSQL plpgsql函數語法錯誤

Question

我想創建一個返回一組記錄的函數，但是出現語法錯誤。 該查詢正在運行，但是當我將其嵌入到函數中時出現錯誤。 如何退還該套票？

錯誤
錯誤：“選擇”或附近的語法錯誤
第27行：選擇id，user_id，project_id，record_date，parselid，pars ...
________ ^
**********錯誤**********
錯誤：“選擇”或附近的語法錯誤
SQL狀態：42601
角色：832

功能碼

CREATE OR REPLACE FUNCTION getloggeom(
    IN p_lat double precision,
    IN p_lng double precision,
    OUT id integer, 
    OUT user_id bigint, 
    OUT project_id bigint, 
    OUT record_date timestamp without time zone, 
    OUT parselid integer, 
    OUT parselno character varying, 
    OUT adano character varying, 
    OUT ilid integer, 
    OUT ilad character varying, 
    OUT ilceid integer, 
    OUT ilcead character varying, 
    OUT mahallead character varying, 
    OUT mahalleid integer, 
    OUT pafta character varying, 
    OUT nitelik character varying, 
    OUT mevkii character varying, 
    OUT yuzolcum character varying, 
    OUT alan double precision, 
    OUT lat double precision, 
    OUT lng double precision, 
    OUT feature json)
  RETURNS SETOF record AS
$BODY$
    select id, user_id, project_id, record_date, parselid, parselno, adano, ilid, ilad, ilceid, ilcead, mahallead, mahalleid, pafta, nitelik, mevkii, yuzolcum, alan, st_x(st_centroid(st_transform(geom,4326))) as lng, st_y(st_centroid(st_transform(geom,4326))) as lat, (SELECT row_to_json(fc) as data
                     FROM ( SELECT 'FeatureCollection' As type, array_to_json(array_agg(f)) as features
                     FROM ( SELECT 'Feature' as type
                        , ST_AsGeoJSON(st_transform(ST_MakeValid(geom),4326))::json as geometry
                        , row_to_json(( parselid, ilad, ilcead, mahallead, adano, parselno, yuzolcum, st_y(st_centroid(st_transform(geom,4326))), st_x(st_centroid(st_transform(geom,4326))))) As properties
                       FROM log_geom where st_intersects((st_transform(st_setsrid(st_point(p_lng, p_lat), 4326), 500000)),geom ) limit 1)as f )  as fc) as feature  from log_geom where         
        ST_Intersects(
        st_transform(st_setsrid(st_point(p_lng, p_lat), 4326), 500000),geom
    )limit 1;
$BODY$
  LANGUAGE plpgsql VOLATILE
  COST 1000
  ROWS 1000;

Answer 1

如果使用plpgsql，則必須包含begin / end 語句，並且必須使用RETURN QUERY ... RETURN; 根據doc 。

否則，您可以切換為使用SQL而不是PLPGSQL，並且您的函數將照常運行。

CREATE OR REPLACE FUNCTION getloggeom([...])
  RETURNS SETOF record AS
$BODY$
    [...]
$BODY$
  LANGUAGE SQL
  COST 1000
  ROWS 1000;