On Sat, Feb 26, 2022 at 5:42 AM Shay Rojansky <r...@roji.org> wrote: > FWIW I've received feedback from a SQL Server engineer that one definitely > should *not* depend on such ordering there, and that future optimizations > (e.g. parallel insertion of many rows) could result in row ordering which > differs from the lexical ordering of the VALUES clause. >
> That seems very reasonable; if the situation is similar on PostgreSQL, > then I'd suggest making that very clear in the INSERT[2] and UPDATE[3] docs. > There is clearly no mention of such a guarantee in our documentation. David J.