presto-main/src/main/java/io/prestosql/sql/planner/LogicalPlanner.java/LogicalPlanner/planStatement
class LogicalPlanner:    public PlanNode planStatement(Analysis analysis, Statement statement)
    {
        if (statement instanceof CreateTableAsSelect && analysis.getCreate().get().isCreateTableAsSelectNoOp()) {
            Symbol symbol = symbolAllocator.newSymbol("rows", BIGINT);
            PlanNode source = new ValuesNode(idAllocator.getNextId(), ImmutableList.of(symbol), ImmutableList.of(ImmutableList.of(new LongLiteral("0"))));
            return new OutputNode(idAllocator.getNextId(), source, ImmutableList.of("rows"), ImmutableList.of(symbol));
        }
        return createOutputPlan(planStatementWithoutOutput(analysis, statement), analysis);
    }