Re: [ANN] guile-wiredtiger 0.6

[Nala Ginrut <nalaginrut@gmail.com>]

Congrats!

2017年5月27日 下午5:17，"Amirouche" <amirouche@hypermove.net>写道：

> I recommend you ping before using it. I am amz3 on #guile @
> irc.freenode.net.
>
>
> Le 27/05/2017 à 11:12, Amirouche a écrit :
>
>> Héllo!
>>
>> I am pleasedto announce the immediate availability of guile-wiredtiger. A
>> database system for guile.
>>
>> wiredtiger in a few bullet points:
>>
>> - ACID
>> - NoSQL (in the sens it has no (sugar) SQL DSL)
>> - networkless
>> - automatic index
>> - multithread support
>> - ordered key/value store
>> - it requires no setup (like sqlite)
>> - it does prefix compression (nice for timeseries)
>> - it does compression
>> - it does encryption
>>
>> It's similar to leveldb, rocksdb and bsddb. The creator of wiredtiger did
>> previously code bsddb now part of oracle.
>>
>> It only works on 64bit systems.
>>
>> At the very core, it's a configurable ordered key/value store, column
>> aware, with global transactions.
>>
>> It's not cache database like REDIS.
>>
>> It's more powerful than RDBMS model and can implement it (demonstrated in
>> [1]).
>>
>> [1] http://hyperdev.fr/notes/somewhat-relational-database-librar
>> y-using-wiredtiger.html
>>
>> The low level API allows to create tables (!) with two kind of columns:
>> key columns and value columns (somewhat like cassandra). Then you can
>> lookup entries in the database using the key with search procedures. There
>> is two kinds of search procedure. One does exact match of the whole key
>> columns, the other does an approximate match, where you lookup for a key
>> prefix (This is actuallly very useful). Once you have a pointer to  an
>> entry in the table you can navigate it quickly using next and previous
>> procedures (remember the table is ordered).
>>
>> There is higher level abstractions like a graphdb with gremlin-like
>> querying, a feature space with microkanren querying and an inverted index
>> for looking up words in documents.
>>
>> You can get it using the following command:
>>
>>   git clone https://framagit.org/a-guile-mind/guile-wiredtiger.git
>>
>> I created several toy projects using this library, actually all my work
>> is based on this library:
>>
>> - https://framagit.org/a-guile-mind/culturia
>> - https://framagit.org/a-guile-mind/hyper
>> - https://framagit.org/a-guile-mind/nanoblog/
>> - https://framagit.org/a-guile-mind/azul
>>
>> And various posts:
>>
>> - http://hyperdev.fr/notes/getting-started-with-guile-wiredtiger.html
>> - http://hyperdev.fr/notes/getting-started-with-guile-uav-database.html
>> - http://hyperdev.fr/notes/somewhat-relational-database-librar
>> y-using-wiredtiger.html
>> - http://hyperdev.fr/notes/a-graph-based-movie-recommender-eng
>> ine-using-guile-scheme.html
>>
>> The project is far from perfect as it's still not packaged and the
>> document is not up to the Guile standard but it's usable.
>>
>>
>> Happy hacking!
>>
>>
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