internal Result <T> Query2 <T>(Expression <Predicate <T> > filter, int start, int count, string orderby)
{
DateTime dt = FastDateTime.Now;
_log.Debug("query : " + _view.Name);
WAHBitArray ba = new WAHBitArray();
QueryVisitor qv = new QueryVisitor(QueryColumnExpression);
qv.Visit(filter);
var delbits = _deletedRows.GetBits();
if (qv._bitmap.Count > 0)
{
WAHBitArray qbits = (WAHBitArray)qv._bitmap.Pop();
ba = qbits.AndNot(delbits);
}
List <T> trows = null;
if (_viewmanager.inTransaction())
{
// query from transactions own data
tran_data data = null;
if (_transactions.TryGetValue(Thread.CurrentThread.ManagedThreadId, out data))
{
List <T> rrows = new List <T>();
foreach (var kv in data.rows)
{
foreach (var r in kv.Value)
{
object o = FastCreateObject(_view.Schema);
rrows.Add((T)_rowfiller(o, r));
}
}
trows = rrows.FindAll(filter.Compile());
}
}
var order = SortBy(orderby);
_log.Debug("query bitmap done (ms) : " + FastDateTime.Now.Subtract(dt).TotalMilliseconds);
dt = FastDateTime.Now;
// exec query return rows
return(ReturnRows2 <T>(ba, trows, start, count, order));
}