presto-spi/src/main/java/io/prestosql/spi/connector/GroupingProperty.java/GroupingProperty/equals
class GroupingProperty:    @Override
    public boolean equals(Object o)
    {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }
        GroupingProperty<?> that = (GroupingProperty<?>) o;
        return Objects.equals(columns, that.columns);
    }