AFAIK, The order is free whether it's SQL without spcified ORDER BY clause or DataFrame without sort. The behavior is consistent between them.
At 2023-09-18 23:47:40, "Nicholas Chammas" <nicholas.cham...@gmail.com> wrote: I’ve always considered DataFrames to be logically equivalent to SQL tables or queries. In SQL, the result order of any query is implementation-dependent without an explicit ORDER BY clause. Technically, you could run `SELECT * FROM table;` 10 times in a row and get 10 different orderings. I thought the same applied to DataFrames, but the docstring for the recently added method DataFrame.offset implies otherwise. This example will work fine in practice, of course. But if DataFrames are technically unordered without an explicit ordering clause, then in theory a future implementation change may result in “Bob" being the “first” row in the DataFrame, rather than “Tom”. That would make the example incorrect. Is that not the case? Nick
