If it looks like a league table, and enables schools to be listed like a league table, and encourages people to make comparisons like a league table, then it's probably a league table.
The more Minister of Education Hekia Parata insists on calling the publication of national data showing results in key subjects from all schools 'Public Achievement Information', the worse it sounds. Once someone invents a name for something that already has one, you know there's trouble afoot.
We're told the idea comes from Australia, which is hardly encouraging. That country has a state school system that's generally regarded as a dumping ground for kids whose parents can't afford to buy them decent schooling.
It's apparently all about excellence in education, but it doesn't even demonstrate excellence itself. Parata has admitted that the first data will be inconsistent. In other words, useless. Surely, if the minister really believes that - and she brought it up - then at the very least she should delay the disclosure of data for a year until reliable and consistent information is available.
But even then there would be no benefit to being able to compare schools in this way. The important measure of a child's education is between an individual pupil's results and agreed-upon national standards. Even the least astute observer can probably work out that pupils of well-heeled urban schools where parents are able to subsidise lavish facilities are likely to perform better than decile 1 rural schools which struggle to attract teachers, let alone have Astroturf.