[Haskell-cafe] Datomic-like db for Haskell?
polux2001 at gmail.com
Tue Jan 24 10:04:01 UTC 2017
Would you mind sharing the result of your research with the mailing list
once you're done?
On Sat, Dec 24, 2016 at 4:50 PM Ovidiu Deac <ovidiudeac at gmail.com> wrote:
> I'll do some research to evaluate my options. So far I have:
> Homegrown implementation on top of some DB (Riak/Postgres/Mongo...)
> Thanks for the answers!
> On Fri, Dec 23, 2016 at 8:07 PM, Ertugrul Söylemez <esz at posteo.de> wrote:
> >> * Another option is to run an insertion-only relational model on
> >> really any database system you want like PostgreSQL. There is
> >> nothing about preserving history that needs special handling to be
> >> efficient.
> > I assume that some sort of structural sharing is needed once the
> > collections grow above a certain size. Also some support for caching
> > would be nice.
> Yeah, sharing could improve disk usage and cache utilisation. I'm not
> aware of any DBMS-side sharing features in systems I have used
> (PostgreSQL and SQLite mainly). The usual way to get sharing in
> relational systems is to normalise the schema. That also allows you to
> use domain-specific knowledge to get even better sharing.
> Caching is of course supported, at least by PostgreSQL. It aims to keep
> as much of the database in memory as possible (or as you tell it to).
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