Npgsql.dll!Npgsql.NpgsqlDataReader.Cleanup
[External Code]
[Waiting on Async Operation, double-click or press enter to view Async Call Stacks]
Npgsql.dll!Npgsql.NpgsqlDataReader.Cleanup(bool async, bool connectionClosing, bool isDisposing) Line 1017
Npgsql.dll!Npgsql.NpgsqlDataReader.Close(bool connectionClosing, bool async, bool isDisposing) Line 998
Npgsql.dll!Npgsql.NpgsqlDataReader.Dispose(bool disposing) Line 890
Dapper.dll!Dapper.SqlMapper.QueryImpl<int>(System.Data.IDbConnection cnn, Dapper.CommandDefinition command, System.Type effectiveType) Line 1120
[External Code]
Dapper.dll!Dapper.SqlMapper.Query<int>(System.Data.IDbConnection cnn, string sql, object param, System.Data.IDbTransaction transaction, bool buffered, int? commandTimeout, System.Data.CommandType? commandType) Line 734

using (var cnn = CreateConnection())
{
	obj.Id = cnn.Query<int>("my insert statement", obj).First();
}