On Thu, Feb 28, 2019 at 7:02 PM Thomas Munro <thomas.mu...@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
