{"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\/it\/blog\/news\/vypusk-ferretdb-0-3-realizaczii-mongodb-na-baze-subd-postgresql","title":{"rendered":"Rilascio di FerretDB 0.3, implementazione di MongoDB basata su PostgreSQL","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>\u00c8 stato pubblicato il rilascio del progetto FerretDB 0.3, che consente di sostituire il database NoSQL MongoDB con PostgreSQL senza modifiche al codice delle applicazioni. FerretDB \u00e8 implementato come un server proxy che traduce le richieste da MongoDB in query SQL per PostgreSQL, consentendo di utilizzare PostgreSQL come effettivo archivio. Il codice \u00e8 scritto in Go e distribuito sotto licenza Apache 2.0.    <\/p>\n<p>Pu\u00f2 sorgere la necessit\u00e0 di migrazione a causa della transizione di MongoDB a una licenza non libera SSPL, che si basa sulla licenza AGPLv3 ma non \u00e8 open source, poich\u00e9 contiene una richiesta discriminatoria di fornitura sotto licenza SSPL non solo del codice dell'applicazione ma anche dei codici sorgente di tutti i componenti coinvolti nella fornitura del servizio cloud.     <\/p>\n<p>Il principale pubblico target di FerretDB \u00e8 costituito da utenti che non utilizzano nelle proprie applicazioni le funzionalit\u00e0 avanzate di MongoDB, ma desiderano impiegare un intero stack software open source. Attualmente, FerretDB supporta solo una parte delle funzionalit\u00e0 di MongoDB, le pi\u00f9 frequentemente utilizzate nelle applicazioni standard. In futuro si prevede di raggiungere la completa compatibilit\u00e0 con i driver per MongoDB e di consentire l'uso di FerretDB come sostituto trasparente di MongoDB.      <\/p>\n<p>MongoDB occupa una nicchia tra sistemi rapidi e scalabili che operano dati in formato chiave\/valore e database relazionali, funzionali e comodi nella formulazione delle query. MongoDB supporta l'archiviazione di documenti in formato JSON-simile, ha un linguaggio abbastanza flessibile per la formulazione delle query, pu\u00f2 creare indici per diversi attributi archiviati, gestisce in modo efficace l'archiviazione di grandi oggetti binari, supporta il logging delle operazioni di modifica e aggiunta di dati nel DB, pu\u00f2 operare secondo il paradigma Map\/Reduce, supporta la replicazione e la costruzione di configurazioni a tolleranza agli errori.     <\/p>\n<p><p>Nella versione 0.3 di FerretDB \u00e8 stata implementata la comando findAndModify che modifica un documento, ma restituisce la sua versione originale. Sono stati implementati gli operatori di aggiornamento dei campi \u2014 $inc  e  $set. \u00c8 stato aggiunto il supporto per l'ordinamento dei tipi di dati scalari.<br \/>\n<br \/>Fonte: <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 5.0.1.1 - 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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