On Thursday, January 25, 2018, Tom Lane <t...@sss.pgh.pa.us> wrote: > > The documentation currently says > > The CONSTANT option prevents the variable from being assigned to > after initialization, so that its value will remain constant for > the duration of the block. >
While we don't really have the concept of mutable types other languages do. Maybe just saying "from being assigned or mutated after initialization" would suffice. I don't see a desirable way to reinforce that the y in arr[y] is unenforced documentation - in the code or docs - beyond what is already done. That distinction doesn't usually come up and for those where it does the docs will probably be an after-the-fact confirmation of observed behavior. David J.
