presto-main/src/main/java/io/prestosql/operator/PagesIndex.java/PagesIndex/newPagesIndex
class PagesIndex:        @Override
        public PagesIndex newPagesIndex(List<Type> types, int expectedPositions)
        {
            return new PagesIndex(orderingCompiler, joinCompiler, metadata, types, expectedPositions, eagerCompact);
        }