presto-hive/src/main/java/io/prestosql/plugin/hive/metastore/SortingColumn.java/SortingColumn/equals
class SortingColumn:    @Override
    public boolean equals(Object o)
    {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }

        SortingColumn that = (SortingColumn) o;
        return Objects.equals(columnName, that.columnName) &&
                order == that.order;
    }