Cómo puede una función almacenada de Postgres devolver una tabla

Question

Me gustaría saber cómo una función almacenada de Postgres puede devolver una tabla, con columnas identificadas. retornos que he usado SETOF returnType:

-- create employeeSearchResult returnType 
create type employeeAllReturnType as 
(
    id bigserial, 
    "positionId" integer, 
    "subjectId" bigint, 
    "dateEngaged" date, 
    "nextKin" text, 
    "nrcNo" text, 
    dob date, 
    father text, 
    mother text, 
    wife text, 
    "userId" integer, 
    "statusId" integer, 
    "mainCode" text, 
    "subCode" text 
); 


-- Search for emmployee by name 
CREATE OR REPLACE FUNCTION "employee_search_by_name"(employeeNameIN text) 
returns setof employeeAllReturnType as 
$$ 
declare 
    results record; 
    resultsRow employee%rowtype; 
    nameIn text; 
begin 
    nameIn = employeeNameIN || '%'; 
    for results in select 
     employee.id,-- bigserial NOT NULL, 
    employee."positionId",-- integer, 
    employee."subjectId",-- bigint NOT NULL, 
    employee."dateEngaged",-- date, 
    employee."nextKin",-- text, 
    employee."nrcNo",-- text, 
    employee.dob,-- date, 
    employee.father,-- text, 
    employee.mother,-- text, 
    employee.wife,-- text, 
    employee."userId",-- integer NOT NULL, 
    employee."statusId",-- integer, 
    employee."mainCode",-- character(5) NOT NULL, 
    employee."subCode"-- character(10), 
    from employee, subject where employee."subjectId" = subject.id and (subject.name1 ILIKE nameIn OR subject.name2 ILIKE nameIn OR subject.name3 ILIKE nameIn OR subject.name4 ILIKE nameIn) loop 
     return next results; 
    end loop; 
end; 
$$ language 'plpgsql'; 

y también la tabla de retorno():

-- Search for emmployee by name 
CREATE OR REPLACE FUNCTION "employee_search_by_name"(employeeNameIN text) 
returns table (id bigserial, 
    position integer, 
    subject bigint, 
    date_engaged date, 
    next_kin text, 
    nrc_no text, 
    dob date, 
    father text, 
    mother text, 
    wife text, 
    user_id integer, 
    status_id integer, 
    main_code text, 
    sub_code text) as 
$$ 
declare 
    results record; 
    resultsRow employee%rowtype; 
    nameIn text; 
begin 
    nameIn = employeeNameIN || '%'; 
    for results in select 
     employee.id,-- bigserial NOT NULL, 
     employee."positionId",-- integer, 
     employee."subjectId",-- bigint NOT NULL, 
     employee."dateEngaged",-- date, 
     employee."nextKin",-- text, 
     employee."nrcNo",-- text, 
     employee.dob,-- date, 
     employee.father,-- text, 
     employee.mother,-- text, 
     employee.wife,-- text, 
     employee."userId",-- integer NOT NULL, 
     employee."statusId",-- integer, 
     employee."mainCode",-- character(5) NOT NULL, 
     employee."subCode"-- character(10), 
    from employee, subject where employee."subjectId" = subject.id and (subject.name1 ILIKE nameIn OR subject.name2 ILIKE nameIn OR subject.name3 ILIKE nameIn OR subject.name4 ILIKE nameIn) loop 
     return next results; 
    end loop; 
end; 
$$ language 'plpgsql'; 

Pero ambos tienen salidas en los siguientes formatos:

"(1,1,1,2011-12-01,Timea,fg1254,1981-12-27,moses,sarada,timea,1,1,"ADM ","1   ")" 
"(37,3,10,2011-11-11,s,s,2011-11-11,s,s,s,1,1,"OP ","1   ")" 

¿Hay alguna forma en la que Puedo tener salidas como las de un resultado de selección de una tabla?

"1";1;1;"2011-12-01";"Timea";"fg1254";"1981-12-27";"moses";"sarada";"timea";1;1;"ADM ";"1   " 

Tal que el manejo de los resultados del frente no requiere un analizador.

Answer 1

Usted debe consultar a su función como esta:

SELECT * FROM employee_search_by_name('Bob'); 

Además, para simplificar su función, se puede intentar la construcción RETURN QUERY EXECUTE .... Y no es necesario citar la palabra clave plpgsql.