On Thu, Feb 28, 2019 at 7:02 PM Thomas Munro <thomas.munro@gmail.com> wrote:
> The type smgr has only one value 'magnetic disk'. ~15 years ago it
> also had a value 'main memory', and in Berkeley POSTGRES 4.2 there was
> a third value 'sony jukebox'. Back then, all tables had an associated
> block storage manager, and it was recorded as an attribute relsmgr of
> pg_class (or pg_relation as it was known further back). This was the
> type of that attribute, removed by Bruce in 3fa2bb31 (1997).
>
> Nothing seems to break if you remove it (except for some tests using
> it in an incidental way). See attached.
Pushed.
Thanks all for the interesting discussion. I'm trying out Anton
Shyrabokau's suggestion of stealing bits from the fork number. More
on that soon.
--
Thomas Munro
https://enterprisedb.com
