On Tue, 9 Apr 2019 at 20:29, Robert Haas <robertmh...@gmail.com> wrote:
> On Tue, Apr 9, 2019 at 11:51 AM Alvaro Herrera <alvhe...@2ndquadrant.com> > wrote: > > This is not surprising, considering that columnar store is precisely the > > reason for starting the work on table AMs. > > > > We should certainly look into integrating some sort of columnar storage > > in mainline. Not sure which of zedstore or VOPS is the best candidate, > > or maybe we'll have some other proposal. My feeling is that having more > > than one is not useful; if there are optimizations to one that can be > > borrowed from the other, let's do that instead of duplicating effort. > > I think that conclusion may be premature. There seem to be a bunch of > different ways of doing columnar storage, so I don't know how we can > be sure that one size will fit all, or that the first thing we accept > will be the best thing. > > Of course, we probably do not want to accept a ton of storage manager > implementations is core. I think if people propose implementations > that are poor quality, or missing important features, or don't have > significantly different use cases from the ones we've already got, > it's reasonable to reject those. But I wouldn't be prepared to say > that if we have two significantly different column store that are both > awesome code with a complete feature set and significantly disjoint > use cases, we should reject the second one just because it is also a > column store. I think that won't get out of control because few > people will be able to produce really high-quality implementations. > > This stuff is hard, which I think is also why we only have 6.5 index > AMs in core after many, many years. And our standards have gone up > over the years - not all of those would pass muster if they were > proposed today. > > BTW, can I express a small measure of disappointment that the name for > the thing under discussion on this thread chose to be called > "zedstore"? That seems to invite confusion with "zheap", especially > in parts of the world where the last letter of the alphabet is > pronounced "zed," where people are going to say zed-heap and > zed-store. Brr. > +1 on Brr. Looks like Thomas and your thought on having 'z' makes things popular/stylish, etc. is after all true, I was skeptical back then. -- Regards, Rafia Sabih
