private static ExprList createArgs(List<Node> variables) {
ExprList retval = new ExprList();
for (Node n : variables) {
retval.add(new ExprVar(n));
}
return retval;
}
private static void argList(ExprList exprList, PropFuncArg pfArg) {
if (pfArg.isNode()) {
Node n = pfArg.getArg();
Expr expr = ExprUtils.nodeToExpr(n);
exprList.add(expr);
return;
}
for (Node n : pfArg.getArgList()) {
Expr expr = ExprUtils.nodeToExpr(n);
exprList.add(expr);
}
}
@Override
public Aggregator copy(ExprList exprs) {
return new AggSampleDistinct(exprs.get(0));
}