PostgrestPartialRow<Row> class final

A row of a select list, as returned by PostgrestTypedQueryBuilder.selectOnly and PostgrestTypedTransformBuilder.selectOnly.

Values are read through the entries of the list, so the entry's type types the read and an entry of another table does not compile:

final books = await client
    .table(Books.table)
    .selectOnly([
      Books.id,
      Books.title,
      Books.author.select([Authors.name]),
    ]);

for (final book in books) {
  final int id = book.read(Books.id);
  final String? authorName = book.read(Books.author)?.read(Authors.name);
}

Reading an entry the list did not ask for throws a StateError naming it, instead of the null cast a getter of the full row type would fail with.