{"id":104224,"date":"2022-06-02T15:37:06","date_gmt":"2022-06-02T13:37:06","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-ferretdb-0-3-realizaczii-mongodb-na-baze-subd-postgresql"},"modified":"2022-06-02T15:37:06","modified_gmt":"2022-06-02T13:37:06","slug":"vypusk-ferretdb-0-3-realizaczii-mongodb-na-baze-subd-postgresql","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/vypusk-ferretdb-0-3-realizaczii-mongodb-na-baze-subd-postgresql","title":{"rendered":"Udgivelsen af FerretDB 0.3, implementeringen af MongoDB baseret p\u00e5 databasen PostgreSQL","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Udgivelsen af FerretDB 0.3-projektet er offentliggjort, hvilket muligg\u00f8r erstatning af dokumentorienteret DBMS MongoDB med PostgreSQL uden \u00e6ndringer i applikationskoden. FerretDB fungerer som en proxyserver, der overs\u00e6tter henvendelser til MongoDB til SQL-foresp\u00f8rgsler til PostgreSQL, hvilket muligg\u00f8r brugen af PostgreSQL som det faktiske lager. Koden er skrevet i Go og distribueres under Apache 2.0-licensen.    <\/p>\n<p>Behovet for migration kan opst\u00e5 i forbindelse med overgangen af MongoDB til den ikke-frie SSPL-licens, som er baseret p\u00e5 AGPLv3-licensen, men som ikke er open source, da den indeholder diskriminerende krav om levering under SSPL-licensen, ikke kun af selve applikationskoden, men ogs\u00e5 af kildekoden til alle de komponenter, der er involveret i levering af cloudtjenesten.     <\/p>\n<p>Den prim\u00e6re m\u00e5lgruppe for FerretDB er brugere, der ikke anvender de avancerede funktioner i MongoDB, men \u00f8nsker at bruge en helt \u00e5bent software-stack. P\u00e5 nuv\u00e6rende udviklingsstadium underst\u00f8tter FerretDB kun en del af de funktioner, der findes i MongoDB, som oftest anvendes i typiske applikationer. I fremtiden planl\u00e6gger de at opn\u00e5 fuld kompatibilitet med drivere til MongoDB og give mulighed for at bruge FerretDB som en gennemsigtig erstatning for MongoDB.      <\/p>\n<p>MongoDB ligger mellem hurtige og skalerbare systemer, der arbejder med data i n\u00f8gle\/v\u00e6rdi-format, og relationelle databaser, der er funktionelle og nemme at foresp\u00f8rge. MongoDB underst\u00f8tter lagring af dokumenter i et JSON-lignende format, har et tilstr\u00e6kkeligt fleksibelt sprog til at lave foresp\u00f8rgsler, kan oprette indekser for forskellige gemte attributter, effektivt h\u00e5ndtere lagring af store bin\u00e6re objekter, underst\u00f8tter journalf\u00f8ring af operationer, der \u00e6ndrer og tilf\u00f8jer data til databasen, kan arbejde efter Map\/Reduce-paradigmet, og underst\u00f8tter replikation og opbygning af fejltolerante konfigurationer.     <\/p>\n<p><p>I udgaven FerretDB 0.3 er kommandoen findAndModify implementeret, som \u00e6ndrer et dokument, men returnerer den oprindelige version. Opdateringsoperatorer til felter er implementeret \u2014 $inc og $set. St\u00f8tte til sortering af skalar datatyper er blevet tilf\u00f8jet.<br \/>\n<br \/>Kilde: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=57290\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u043f\u0440\u043e\u0435\u043a\u0442\u0430 FerretDB 0.3, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u0433\u043e \u0437\u0430\u043c\u0435\u043d\u0438\u0442\u044c \u0434\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u043e-\u043e\u0440\u0438\u0435\u043d\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u0443\u044e \u0421\u0423\u0411\u0414 MongoDB \u043d\u0430 PostgreSQL \u0431\u0435\u0437 \u0432\u043d\u0435\u0441\u0435\u043d\u0438\u044f \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0439 \u0432 \u043a\u043e\u0434 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439. FerretDB \u0440\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d \u043a\u0430\u043a \u043f\u0440\u043e\u043a\u0441\u0438-\u0441\u0435\u0440\u0432\u0435\u0440, \u0442\u0440\u0430\u043d\u0441\u043b\u0438\u0440\u0443\u044e\u0449\u0438\u0439 \u043e\u0431\u0440\u0430\u0449\u0435\u043d\u0438\u044f \u043a MongoDB \u0432 SQL-\u0437\u0430\u043f\u0440\u043e\u0441\u044b \u043a PostgreSQL, \u0447\u0442\u043e \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c PostgreSQL \u0432 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435 \u0444\u0430\u043a\u0442\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e \u0445\u0440\u0430\u043d\u0438\u043b\u0438\u0449\u0430. \u041a\u043e\u0434 \u043d\u0430\u043f\u0438\u0441\u0430\u043d \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 Go \u0438 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 Apache 2.0. \u041f\u043e\u0442\u0440\u0435\u0431\u043d\u043e\u0441\u0442\u044c \u043c\u0438\u0433\u0440\u0430\u0446\u0438\u0438 \u043c\u043e\u0436\u0435\u0442 \u0432\u043e\u0437\u043d\u0438\u043a\u043d\u0443\u0442\u044c \u0432 \u0441\u0432\u044f\u0437\u0438 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-104224","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u043f\u0440\u043e\u0435\u043a\u0442\u0430 FerretDB 0.3, 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