Michael Paquier <michael@paquier.xyz> writes:
> On Mon, Apr 15, 2024 at 11:20:16AM +1200, David Rowley wrote:
>> 1. We cannot change Node enums in minor versions
>> 2. We're *unlikely* to add fields to Node types in minor versions, and
>> if we did we'd likely be leaving them out of the jumble calc, plus it
>> seems highly unlikely any new field we wedged into the padding would
>> relate at all to the parsed query.
> Since 16 these new fields would be added by default unless the node
> attribute query_jumble_ignore is appended to it.
They'd also be written/read by outfuncs/readfuncs, thereby breaking
stored views/rules if the Node is one that can appear in a parsetree.
So the bar to making such a change in a stable branch would be very
high.
regards, tom lane