presto-main/src/main/java/io/prestosql/sql/planner/Partitioning.java/Partitioning/create
class Partitioning:    public static Partitioning create(PartitioningHandle handle, List<Symbol> columns)
    {
        return new Partitioning(handle, columns.stream()
                .map(Symbol::toSymbolReference)
                .map(ArgumentBinding::expressionBinding)
                .collect(toImmutableList()));
    }