private static PlanNode buildProjectedIndexSource(PlanBuilder p, Predicate<Symbol> projectionFilter) { Symbol orderkey = p.symbol("orderkey", INTEGER); Symbol custkey = p.symbol("custkey", INTEGER); Symbol totalprice = p.symbol("totalprice", DOUBLE); ColumnHandle orderkeyHandle = new TpchColumnHandle(orderkey.getName(), INTEGER); ColumnHandle custkeyHandle = new TpchColumnHandle(custkey.getName(), INTEGER); ColumnHandle totalpriceHandle = new TpchColumnHandle(totalprice.getName(), DOUBLE); return p.project( Assignments.identity( ImmutableList.of(orderkey, custkey, totalprice).stream() .filter(projectionFilter) .collect(toImmutableList())), p.indexSource( new TableHandle( new ConnectorId("local"), new TpchTableHandle("orders", TINY_SCALE_FACTOR)), ImmutableSet.of(orderkey, custkey), ImmutableList.of(orderkey, custkey, totalprice), ImmutableMap.of( orderkey, orderkeyHandle, custkey, custkeyHandle, totalprice, totalpriceHandle), TupleDomain.fromFixedValues(ImmutableMap.of(totalpriceHandle, asNull(DOUBLE))))); } }