presto-main/src/main/java/io/prestosql/sql/planner/DomainTranslator.java/DomainTranslator/DomainTranslator
class DomainTranslator:    public DomainTranslator(Metadata metadata)
    {
        this.metadata = requireNonNull(metadata, "metadata is null");
        this.literalEncoder = new LiteralEncoder(metadata);
    }