{"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\/nl\/blog\/news\/vypusk-ferretdb-0-3-realizaczii-mongodb-na-baze-subd-postgresql","title":{"rendered":"Uitgave van FerretDB 0.3, een implementatie van MongoDB op basis van het PostgreSQL-databasebeheersysteem.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>De uitgave van het FerretDB-project 0.3 is gepubliceerd, waarmee de document-geori\u00ebnteerde database MongoDB kan worden vervangen door PostgreSQL zonder aanpassingen in de applicatiecode. FerretDB is ge\u00efmplementeerd als een proxyserver die verzoeken naar MongoDB omzet in SQL-query's naar PostgreSQL, waardoor PostgreSQL als de daadwerkelijke opslag kan worden gebruikt. De code is geschreven in de programmeertaal Go en verspreid onder de Apache 2.0-licentie.    <\/p>\n<p>De behoefte aan migratie kan ontstaan door de overstap van MongoDB naar de niet-vrije SSPL-licentie, die is gebaseerd op de AGPLv3-licentie maar niet open source is, omdat het een discriminerende eis bevat om niet alleen de code van de applicatie, maar ook de bronbestanden van alle componenten die betrokken zijn bij het leveren van de cloudservice onder de SSPL-licentie te leveren.     <\/p>\n<p>De belangrijkste doelgroep van FerretDB zijn gebruikers die de geavanceerde mogelijkheden van MongoDB niet in hun applicaties gebruiken, maar een volledig open softwarestack willen gebruiken. In deze fase van ontwikkeling ondersteunt FerretDB nog slechts een deel van de mogelijkheden van MongoDB die het meest worden gebruikt in standaardapplicaties. In de toekomst is het de bedoeling om volledige compatibiliteit met de MongoDB-drivers te bereiken en de mogelijkheid te bieden om FerretDB als een transparante vervanging voor MongoDB te gebruiken.      <\/p>\n<p>MongoDB bevindt zich in een niche tussen snelle en schaalbare systemen die gegevens in het sleutel-waardeformaat beheren, en relationele databases die functioneel zijn en gemakkelijk queries kunnen opstellen. MongoDB ondersteunt het opslaan van documenten in een JSON-achtig formaat, heeft een vrij flexibele query-taal, kan indexen cre\u00ebren voor verschillende opgeslagen attributen, biedt effectief opslag voor grote binaire objecten, ondersteunt het loggen van operaties voor het wijzigen en toevoegen van gegevens aan de database, kan werken volgens het Map\/Reduce-paradigma, ondersteunt replicatie en het opbouwen van fouttolerante configuraties.     <\/p>\n<p><p>In de uitgave FerretDB 0.3 is de findAndModify-opdracht ge\u00efmplementeerd, waarmee een document wordt gewijzigd, maar de oorspronkelijke versie wordt geretourneerd. Bijwerkingsoperatoren voor velden zijn ge\u00efmplementeerd \u2014 $inc en $set. Ondersteuning voor het sorteren van scalare datatypes is toegevoegd.<br \/>\n<br \/>Bron: <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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