presto-parser/src/main/java/io/prestosql/sql/parser/AstBuilder.java/AstBuilder/visitSelectAll
class AstBuilder:    @Override
    public Node visitSelectAll(SqlBaseParser.SelectAllContext context)
    {
        List<Identifier> aliases = ImmutableList.of();
        if (context.columnAliases() != null) {
            aliases = visit(context.columnAliases().identifier(), Identifier.class);
        }

        return new AllColumns(
                getLocation(context),
                visitIfPresent(context.primaryExpression(), Expression.class),
                aliases);
    }