[FB-Tracker] Created: (DNET-770) Problem with INSERT (...) RETURNING (...) and using DataReader

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[FB-Tracker] Created: (DNET-770) Problem with INSERT (...) RETURNING (...) and using DataReader

JIRA tracker@firebirdsql.org
Problem with INSERT (...) RETURNING (...) and using DataReader
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                 Key: DNET-770
                 URL: http://tracker.firebirdsql.org/browse/DNET-770
             Project: .NET Data provider
          Issue Type: Bug
          Components: ADO.NET Provider
    Affects Versions: 5.9.1.0
         Environment: Windows x64 ;  Firebird database 2.5.4 ;  FirebirdSql.Data.FirebirdClient 5.9.1
            Reporter: Remigiusz Babicz
            Assignee: Jiri Cincura


INSERT (...) RETURNING (...) statement:
* works fine when using ExecuteScalar()
* doesn't work when using Executereader()


Full Code:

using System;
using FirebirdSql.Data.FirebirdClient;

namespace FirebirdClient
{
   class Program
   {
      static void Main(string[] args)
      {
         object generatedID;
         string command = @"
INSERT INTO CUSTOMER(CUSTOMER, CONTACT_FIRST, CONTACT_LAST, PHONE_NO, ADDRESS_LINE1, ADDRESS_LINE2, CITY, STATE_PROVINCE, COUNTRY, POSTAL_CODE, ON_HOLD)
VALUES('aaa', 'Jan','Kowalski', '1256', 'ulica', 'miasto', 'city', 'province', 'USA', '123', '*' ) RETURNING CUST_NO";
         string connectionString = @"DataSource = localhost;Database = ""localhost:C:\Program Files\Firebird\Firebird_2_5\examples\empbuild\EMPLOYEE.FDB""; User = sysdba; Password = masterkey";
         using (FbConnection con = new FbConnection(connectionString))
         {
            con.Open();
            using (FbCommand fbc = new FbCommand(command, con))
            {
               if (false)
               {
                  generatedID = fbc.ExecuteScalar(); //this works fine!
               }
               else
               {
                  //this doesn't work
                  FbDataReader dr = fbc.ExecuteReader();
                  int fielsCount = dr.FieldCount; //return 1
                  string namse = dr.GetName(0); //return CUST_NO
                  Type type = dr.GetFieldType(0); //return int
                  bool rows = dr.HasRows; //return false
                  bool read = dr.Read(); //return false
                  generatedID = dr.GetValue(0); //throws exception
               }
            }
         }
      }
   }
}

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