> On 15 November 2016 at 15:03, Aleksander Alekseev < a.aleks...@postgrespro.ru> wrote: > Hello. > > I took a look on the latest -v4 patch. I would like to note that this > patch breaks a backward compatibility. For instance sr_plan extension > stop to compile with errors
Thank you for the feedback. Well, if we're speaking about this particular extension, if I understood correctly, it fetches all parse tree nodes from Postgres and generates code using this information. So to avoid compilation problems I believe you need to run `make USE_PGXS=1 genparser` again (it worked for me, I don't see any mentions of `ArrayRef`). But speaking generally, I don't see how we can provide backward compatibility for those extensions, who are strongly coupled with implementation details of parsing tree. I mean, in terms of interface it's mostly about to replace `ArrayRef` to `SubscriptingRef`, but I think it's better to do it in the extension code.