public OrderedRowSet(RowSet sce, SSelectStatement sel, Context cx) : base(sce._tr, sel, sce._aggregates, sce.Length)
{
_sce = sce;
var ti = SList <TreeInfo <Serialisable> > .Empty;
int n = 0;
for (var b = sel.order.First(); b != null; b = b.Next())
{
ti = ti + (new TreeInfo <Serialisable>(b.Value, 'A', 'D', !b.Value.desc), n++);
}
var t = new SMTree <Serialisable>(ti);
var r = SDict <int, SRow> .Empty;
int m = 0;
for (var b = sce.First() as RowBookmark; b != null; b = b.Next() as RowBookmark)
{
var k = new Variant[n];
var i = 0;
for (var c = sel.order.First(); c != null; c = c.Next())
{
k[i] = new Variant(c.Value.col.Lookup(new Context(b, cx)), !c.Value.desc);
}
t = t.Add(m, k);
r += (m++, b._ob);
}
_tree = t;
_rows = r;
}
public DistinctRowSet(RowSet sce) : base(sce._tr, sce._qry, sce._aggregates, null)
{
_sce = sce;
var r = SDict <SRow, bool> .Empty;
for (var b = sce.First(); b != null; b = b.Next())
{
r += (((RowBookmark)b)._ob, true);
}
rows = r;
}
public OrderedRowSet(RowSet sce, SList <TreeInfo <Serialisable> > ti, Context cx)
: base(sce._tr, sce._qry, sce._aggregates, null)
{
_sce = sce;
var t = new SMTree <Serialisable>(ti);
var r = SDict <int, SRow> .Empty;
int m = 0;
for (var b = sce.First() as RowBookmark; b != null; b = b.Next() as RowBookmark)
{
var k = new Variant[ti.Length.Value];
var i = 0;
for (var c = ti.First(); c != null; c = c.Next())
{
k[i] = new Variant(c.Value.headName.Lookup(new Context(b, cx)));
}
t = t.Add(m, k);
r += (m++, b._ob);
}
_tree = t;
_rows = r;
}
