我想在我的PL / pgSQL函数中临时更改CREATE OR REPLACE FUNCTION public.myfunction()
RETURNS void AS
$body$
DECLARE
l_tmp_lock_timeout TEXT;
BEGIN
-- We want this to bail out when no lock is gained
SHOW lock_timeout INTO l_tmp_lock_timeout;
SET LOCAL lock_timeout TO '10s';
RAISE NOTICE 'Local lock timeout set to 10s, was %', l_tmp_lock_timeout;
-- ... do stuff ...
-- and reset the lock timeout
SET LOCAL lock_timeout TO l_tmp_lock_timeout;
RAISE NOTICE 'Local lock timeout set to %', l_tmp_lock_timeout;
RETURN;
END;
$body$
LANGUAGE 'plpgsql'
，我想这很简单：
NOTICE: Local lock timeout set to 10s, was 0
ERROR: invalid value for parameter "lock_timeout": "l_tmp_lock_timeout"
CONTEXT: SQL statement "SET LOCAL lock_timeout TO l_tmp_lock_timeout"
PL/pgSQL function myfunction() line 48 at SQL statement
但这给了我这个结果：
lock_timeout如何正确存储和重置private const string EncryptionKey = "SomeSecretKEY";
private readonly static byte[] Salt = Encoding.ASCII.GetBytes(EncryptionKey.Length.ToString());
public static String EncryptPassword(string password)
{
var rijndaelCipher = new RijndaelManaged();
byte[] plainText = Encoding.Unicode.GetBytes(password);
var secretKey = new PasswordDeriveBytes(EncryptionKey, Salt);
using (ICryptoTransform encryptor = rijndaelCipher.CreateEncryptor(secretKey.GetBytes(32), secretKey.GetBytes(16)))
{
using (var memoryStream = new MemoryStream())
{
using (var cryptoStream = new CryptoStream(memoryStream, encryptor, CryptoStreamMode.Write))
{
cryptoStream.Write(plainText, 0, plainText.Length);
cryptoStream.FlushFinalBlock();
return Convert.ToBase64String(memoryStream.ToArray());
}
}
}
}
设置？
答案 0 :(得分：2)
SET之类的实用程序语句不能与参数一起使用。
您将不得不使用动态SQL，例如
EXECUTE format('SET lock_timeout = %L', l_tmp_lock_timeout);
或使用
SELECT set_config('lock_timeout', l_tmp_lock_timeout, FALSE);