public override Expr SplitAgg()
{
var child = child_();
// child of tsum/tcount will be replace to bypass aggfunc child during aggfunc intialization
var tsum = new AggSum(new List <Expr> {
child
}); tsum.dummyBind();
var sumchild = new AggSum(new List <Expr> {
child.Clone()
}); sumchild.dummyBind();
var sumchildref = new AggrRef(sumchild, -1);
tsum.children_[0] = sumchildref;
var tcount = new AggSum(new List <Expr> {
child
}); tcount.dummyBind();
var countchild = new AggCount(new List <Expr> {
child.Clone()
}); countchild.dummyBind();
var countchildref = new AggrRef(countchild, -1);
tcount.children_[0] = countchildref;
var processed = new BinExpr(tsum, tcount, "/");
processed.dummyBind();
return(processed);
}
public Expr ExprOfQueryRef(bool hasAggFunc)
{
Expr expr = this;
Debug.Assert(bounded_);
if (tabRef_ is FromQueryRef tf)
{
var repl = tf.MapOutputName(outputName_);
if (hasAggFunc && repl.HasAggFunc())
{
expr = new AggrRef(repl, -1);
}
else
{
expr = repl;
}
}
return(expr);
}