{"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\/pl\/blog\/news\/vypusk-ferretdb-0-3-realizaczii-mongodb-na-baze-subd-postgresql","title":{"rendered":"Wydanie FerretDB 0.3, realizacji MongoDB na bazie SGBD PostgreSQL","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Opublikowano wersj\u0119 projektu FerretDB 0.3, kt\u00f3ra umo\u017cliwia zast\u0105pienie dokumentowej bazy danych MongoDB PostgreSQL bez wprowadzania zmian w kodzie aplikacji. FerretDB dzia\u0142a jako serwer proxy, przek\u0142adaj\u0105cy zapytania do MongoDB na zapytania SQL do PostgreSQL, co pozwala na u\u017cycie PostgreSQL jako rzeczywistego magazynu. Kod zosta\u0142 napisany w j\u0119zyku Go i jest rozpowszechniany na licencji Apache 2.0. <\/p>\n

Potrzeba migracji mo\u017ce wynika\u0107 z przej\u015bcia MongoDB na nienatywn\u0105 licencj\u0119 SSPL, kt\u00f3ra opiera si\u0119 na licencji AGPLv3, ale nie jest otwarta, poniewa\u017c zawiera dyskryminuj\u0105ce wymaganie dotycz\u0105ce dostarczania pod licencj\u0105 SSPL nie tylko kodu samej aplikacji, ale tak\u017ce \u017ar\u00f3d\u0142owych tekst\u00f3w wszystkich komponent\u00f3w zaanga\u017cowanych w \u015bwiadczenie us\u0142ugi chmurowej. <\/p>\n

G\u0142\u00f3wn\u0105 grup\u0105 docelow\u0105 FerretDB s\u0105 u\u017cytkownicy, kt\u00f3rzy nie korzystaj\u0105 w swoich aplikacjach z zaawansowanych mo\u017cliwo\u015bci MongoDB, ale chc\u0105 u\u017cywa\u0107 w pe\u0142ni otwartego stosu oprogramowania. Na obecnym etapie rozwoju FerretDB wspiera tylko cz\u0119\u015b\u0107 mo\u017cliwo\u015bci MongoDB, najcz\u0119\u015bciej stosowanych w typowych aplikacjach. W przysz\u0142o\u015bci planuje si\u0119 osi\u0105gni\u0119cie pe\u0142nej zgodno\u015bci z driverami do MongoDB i umo\u017cliwienie korzystania z FerretDB jako przejrzystego zamiennika dla MongoDB. <\/p>\n

MongoDB zajmuje nisz\u0119 pomi\u0119dzy szybkimi i skalowalnymi systemami operuj\u0105cymi danymi w formacie klucz\/warto\u015b\u0107 a relacyjnymi bazami danych, funkcjonalnymi i wygodnymi w tworzeniu zapyta\u0144. MongoDB wspiera przechowywanie dokument\u00f3w w formacie podobnym do JSON, ma wystarczaj\u0105co elastyczny j\u0119zyk do formu\u0142owania zapyta\u0144, mo\u017ce tworzy\u0107 indeksy dla r\u00f3\u017cnych przechowywanych atrybut\u00f3w, efektywnie zapewnia przechowywanie du\u017cych obiekt\u00f3w binarnych, wspiera logowanie operacji zmiany i dodawania danych do bazy danych, mo\u017ce dzia\u0142a\u0107 zgodnie z paradygmatem Map\/Reduce, wspiera replikacj\u0119 i budowanie konfiguracji odpornych na awarie. <\/p>\n

W wydaniu FerretDB 0.3 wprowadzono polecenie findAndModify, kt\u00f3re zmienia dokument, ale zwraca jego pierwotn\u0105 wersj\u0119. Zrealizowano operatory aktualizacji p\u00f3l \u2014 $inc i $set. Dodano wsparcie dla sortowania skalar\u00f3w typ\u00f3w danych.
\n
\u0179r\u00f3d\u0142o: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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\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 […]<\/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\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Wersja FerretDB 0.3, implementacja MongoDB oparta na systemie baz danych PostgreSQL | 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