在函数中加密密码不起作用 - postgres

Question

我在 postgres 中写了一个基本的插入函数，它的目的是插入带有加密密码的数据，我使用了 Postgres 的本机函数 PGP_SYS_ENCRYPT 但是我得到此错误：

ERROR:  function pgp_sym_encrypt(text, unknown) does not exist
LINE 3:            PGP_SYM_ENCRYPT(pass,'AES_KEY'),'0')
                   ^
HINT:  No function matches the given name and argument types. You might need to add explicit type casts.
QUERY:  INSERT INTO users (username,email,password_,isDriver,login_status)  VALUES(usn,
                                                                            em,
                                            PGP_SYM_ENCRYPT(pass,'AES_KEY'),'0')
CONTEXT:  PL/pgSQL function create_users(character varying,character varying,text,character varying) line 5 at SQL statement
SQL state: 42883

我不知道为什么会这样，下面是我的功能，我错过了什么？ :

CREATE OR REPLACE FUNCTION public.create_users(
    usn character varying,
    em character varying,
    pass text,
    isd character varying)
    RETURNS integer
    LANGUAGE 'plpgsql'

    COST 100
    VOLATILE 
AS $BODY$
declare
    total integer;

BEGIN
   INSERT INTO users (username,email,password_,isDriver,login_status)  VALUES(usn,
                                                                            em,
                                            PGP_SYM_ENCRYPT(pass,'AES_KEY'),'0');
   RETURN 1;
END;

$BODY$;

ALTER FUNCTION public.create_users(character varying, character varying, text, character varying)
    OWNER TO postgres;

Answer 1

这里的疯狂猜测是：也许您没有安装它？..

db=# \sf pgp_sym_encrypt
ERROR:  function "pgp_sym_encrypt" does not exist

所以你只是

db=# create extension pgcrypto ;
CREATE EXTENSION

和：

db=# \sf pgp_sym_encrypt(text,text)
CREATE OR REPLACE FUNCTION public.pgp_sym_encrypt(text, text)
 RETURNS bytea
 LANGUAGE c
 PARALLEL SAFE STRICT
AS '$libdir/pgcrypto', $function$pgp_sym_encrypt_text$function$

在函数中加密密码不起作用 - postgres

Encrypt password in a function does't work - postgres

postgresql

postgresql-9.5