PostgresException：42883：尝试调用过程时，函数X（没有时区的时间戳）不存在

Question

I am trying to call stored procedure using .net core.

I had This problem. After fixing my previous problem, I have another syntax error.

PostgresException: 42883: function GetActiveUserPackagesForOpenBillingPeriod(timestamp without time zone) does not exist when trying to call procedure

This is the code:

        var date = DateTime.Now;
        List<ActivePackageForOpenBillingPeriod> activeUserPackagesForOpenBillingPeriod = null;

        using (var conn = new NpgsqlConnection ("Host=localhost;Port=xxx;Database=postgres;Username=postgres;Password=xxx;TrustServerCertificate=true;ApplicationName=xxx;")) 
        {                
            var s = "Select * FROM \"GetActiveUserPackagesForOpenBillingPeriod\"({0})";
            activeUserPackagesForOpenBillingPeriod = context.ActivePackageForOpenBillingPeriods.FromSql (s, date).ToList ();

        }

Stored Procedure

create or replace function "GetActiveUserPackagesForOpenBillingPeriod"(somedate timestamp without time zone) returns TABLE("Amount" numeric, "Package" integer, "User" integer, "Account" integer, "AcceptanceActID" integer, "HasChangedPackage" boolean)
language plpgsql
as
$$
DECLARE
    BEGIN
      RETURN QUERY
        SELECT
            up."TotalAmount",
            up."PackageID",
            u."ID" AS "UserId",
            a."ID" AS "AccountId",
            th."AcceptanceActID",


            CASE
                  WHEN count(DISTINCT tl."PackageID") IN (0,1)  THEN false
                  ELSE true
            END AS "HasChangedPackage"

        FROM public."Accounts" as a
            LEFT JOIN billing."TransactionHeaders" AS th ON th."AccountID" = a."ID"
            INNER JOIN security."Users" AS u ON u."AccountID"= a."ID"
            INNER JOIN billing."UserPackages" AS up ON up."UserID"=u."ID" AND COALESCE(th."Date", date) BETWEEN up."StartDate" AND COALESCE(up."EndDate", date)
            LEFT JOIN billing."TransactionLines" AS tl ON th."Id" = tl."TransactionHeaderID"

        WHERE th."AcceptanceActID" IS NULL AND a."StatusID"!=4 AND a."StatusID"!=3 AND up."StatusID"=1


        GROUP BY a."ID", u."ID", up."PackageID", 
up."TotalAmount",th."AcceptanceActID";
RETURN;

END;
$$;

alter function "GetActiveUserPackagesForOpenBillingPeriod"(timestamp)  
owner 
to postgres;

Class

public class ActivePackageForOpenBillingPeriod {
    public int Id { get; set; }

    public int AccountID { get; set; }

    [ForeignKey ("AccountID")]
    public Account Account { get; set; }
    public int UserID { get; set; }

    [ForeignKey ("UserID")]
    public User User { get; set; }
    public int PackageID { get; set; }

    [ForeignKey ("PackageID")]
    public Package Package { get; set; }
    public decimal TotalAmount { get; set; }
    public bool HasChangedPackage { get; set; }

}

Answer 1

Don't use timestamp parameter, you must use the varchar parameter. And in the stored procedure you change the type varchar for the timestamp.