public Obj Copy(int idx1, int idx2, int idx3)
{
if (count == 0)
{
return(EmptyRelObj.Singleton());
}
Obj[] objs1 = new Obj[count];
Obj[] objs2 = new Obj[count];
Obj[] objs3 = new Obj[count];
int len = tuples.Length;
int next = 0;
for (uint i = 0; i < len; i++)
{
Tuple tuple = tuples[i];
if (tuple.field2OrEmptyMarker != Tuple.Empty)
{
objs1[next] = store1.GetValue(tuple.field1OrNext);
objs2[next] = store2.GetValue(tuple.field2OrEmptyMarker);
objs3[next] = store3.GetValue(tuple.field3);
next++;
}
}
Miscellanea.Assert(next == count);
Obj[][] cols = new Obj[3][];
cols[idx1] = objs1;
cols[idx2] = objs2;
cols[idx3] = objs3;
return(Builder.CreateTernRel(cols[0], cols[1], cols[2], count));
}
public Obj Copy(bool flipped)
{
int count = table1.count;
if (count == 0)
{
return(EmptyRelObj.Singleton());
}
Obj[] objs1 = new Obj[count];
Obj[] objs2 = new Obj[count];
int next = 0;
for (uint i = 0; i < table1.column.Length; i++)
{
uint code = table1.column[i];
if (code != OverflowTable.EmptyMarker)
{
Obj val1 = store1.GetValue(i);
if (code >> 29 == 0)
{
objs1[next] = val1;
objs2[next++] = store2.GetValue(code);
}
else
{
OverflowTable.Iter it = table1.overflowTable.GetIter(code);
while (!it.Done())
{
uint surr2 = it.Get();
objs1[next] = val1;
objs2[next++] = store2.GetValue(surr2);
it.Next();
}
}
}
}
Miscellanea.Assert(next == count);
return(Builder.CreateBinRel(flipped ? objs2 : objs1, flipped ? objs1 : objs2, count)); //## THIS COULD BE MADE MORE EFFICIENT
}
public Obj Copy()
{
if (count == 0)
{
return(EmptyRelObj.Singleton());
}
Obj[] objs = new Obj[count];
int next = 0;
for (uint i = 0; i < bitmap.Length; i++)
{
ulong mask = bitmap[i];
for (uint j = 0; j < 64; j++)
{
if (((mask >> (int)j) & 1) != 0)
{
objs[next++] = store.GetValue(j + 64 * i);
}
}
}
Miscellanea.Assert(next == count);
return(Builder.CreateSet(objs, objs.Length));
}
