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[FB-Tracker] Created: (DNET-743) Memory leak in Firebird 3 on implicit transaction

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[FB-Tracker] Created: (DNET-743) Memory leak in Firebird 3 on implicit transaction

JIRA tracker@firebirdsql.org
Memory leak in Firebird 3 on implicit transaction
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                 Key: DNET-743
                 URL: http://tracker.firebirdsql.org/browse/DNET-743
             Project: .NET Data provider
          Issue Type: Bug
          Components: ADO.NET Provider
    Affects Versions: 5.8.0.0
         Environment: Firebird: 3.0.1.32609, .NET Provider: 5.8, .NET 4.6, Win 10 x64
            Reporter: Alexander Lipatov
            Assignee: Jiri Cincura


Implicit transactions in Firebird 3 cause a massive memory leak on the server part.
It is detected only on Firebird 3.
If transaction is performed manually the memory leak is not happened.

Example:
var connection = new FbConnection(connectionString);
connection.Open();
while (true)
{
    using (var cmd = connection.CreateCommand())
    {
        cmd.CommandText = "SELECT * FROM TABLE_NAME";
        cmd.ExecuteNonQuery();
    }
}

I fixed this issue as follows:
The calls isc_commit_transaction and isc_dsql_free_statement was swapped.


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