{"id":107696,"date":"2023-04-04T12:48:31","date_gmt":"2023-04-04T10:48:31","guid":{"rendered":"https:\/\/prohoster.info\/?p=107696"},"modified":"2023-04-04T19:05:56","modified_gmt":"2023-04-04T17:05:56","slug":"pervyj-stabilnyj-vypusk-ferretdb-realizaczii-mongodb-na-baze-subd-postgresql","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/pervyj-stabilnyj-vypusk-ferretdb-realizaczii-mongodb-na-baze-subd-postgresql","title":{"rendered":"Lan\u00e7amento da primeira vers\u00e3o est\u00e1vel do FerretDB, uma implementa\u00e7\u00e3o do MongoDB baseada no sistema de gerenciamento de banco de dados PostgreSQL","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Foi lan\u00e7ado o FerretDB 1.0, um projeto que permite substituir o banco de dados orientado a documentos MongoDB pelo PostgreSQL sem mudan\u00e7as no c\u00f3digo das aplica\u00e7\u00f5es. O FerretDB \u00e9 implementado como um servidor proxy, traduzindo as solicita\u00e7\u00f5es do MongoDB em consultas SQL para o PostgreSQL, permitindo assim o uso do PostgreSQL como o armazenamento real. A vers\u00e3o 1.0 \u00e9 marcada como o primeiro lan\u00e7amento est\u00e1vel, pronto para uso generalizado. O c\u00f3digo \u00e9 escrito na linguagem Go e distribu\u00eddo sob a licen\u00e7a Apache 2.0.        <\/p>\n<p>O principal p\u00fablico-alvo do FerretDB s\u00e3o os usu\u00e1rios que n\u00e3o utilizam nos seus aplicativos os recursos avan\u00e7ados do MongoDB, mas desejam utilizar uma pilha de software completamente aberta. Neste est\u00e1gio de desenvolvimento, o FerretDB suporta um subconjunto das funcionalidades do MongoDB que s\u00e3o mais comumente utilizadas em aplicativos t\u00edpicos. A necessidade de implementar o FerretDB pode surgir devido \u00e0 mudan\u00e7a do MongoDB para uma licen\u00e7a n\u00e3o livre, a SSPL, que se baseia na licen\u00e7a AGPLv3, mas n\u00e3o \u00e9 considerada aberta, pois cont\u00e9m uma exig\u00eancia discriminat\u00f3ria de que a entrega sob a licen\u00e7a SSPL inclua n\u00e3o apenas o c\u00f3digo do pr\u00f3prio aplicativo, mas tamb\u00e9m o c\u00f3digo fonte de todos os componentes envolvidos na presta\u00e7\u00e3o do servi\u00e7o em nuvem.         <\/p>\n<p>O MongoDB ocupa um nicho entre sistemas r\u00e1pidos e escal\u00e1veis que operam dados em formato chave\/valor e SGBDs relacionais, funcionais e convenientes para formar consultas. O MongoDB suporta o armazenamento de documentos em formato semelhante ao JSON, possui uma linguagem bastante flex\u00edvel para formar consultas, pode criar \u00edndices para v\u00e1rios atributos armazenados, garante efetivamente o armazenamento de grandes objetos bin\u00e1rios, suporta o registro de opera\u00e7\u00f5es de altera\u00e7\u00e3o e adi\u00e7\u00e3o de dados no BD, pode operar de acordo com a paradigma Map\/Reduce e suporta replica\u00e7\u00e3o e constru\u00e7\u00e3o de configura\u00e7\u00f5es tolerantes a falhas.     <\/p>\n<p>Entre as mudan\u00e7as no FerretDB 1.0:  <\/p>\n<ul>\n<li class=\"l\"> Implementados os comandos createIndexes e dropIndexes para cria\u00e7\u00e3o e remo\u00e7\u00e3o de um ou mais \u00edndices em uma cole\u00e7\u00e3o.\n<li class=\"l\"> Implementado o comando getMore para exibir um novo lote de resultados obtidos na execu\u00e7\u00e3o de comandos que retornam um cursor, como find e aggregate.\n<li class=\"l\"> Adicionada a suporte ao operador de agrega\u00e7\u00e3o $sum para calcular a soma dos valores de um grupo.\n<li class=\"l\"> Adicionada a suporte aos operadores $limit e $skip para restringir o n\u00famero de documentos e pular documentos ao agregar.\n<li class=\"l\"> Adicionada a suporte ao operador $count para contar documentos durante a agrega\u00e7\u00e3o.\n<li class=\"l\"> Adicionada a suporte ao operador $unwind para desmembrar campos de array em documentos de entrada e formar uma lista com um documento separado para cada elemento do array.\n<li class=\"l\"> Adicionada a suporte parcial aos comandos collStats, dbStats e dataSize para obter estat\u00edsticas sobre a cole\u00e7\u00e3o e o banco de dados, assim como o tamanho dos dados.            <\/ul>\n<p>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=58915\">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 1.0, \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. \u0412\u0435\u0440\u0441\u0438\u044f 1.0 \u043e\u0442\u043c\u0435\u0447\u0435\u043d\u0430 \u043a\u0430\u043a \u043f\u0435\u0440\u0432\u044b\u0439 \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u044b\u0439 \u0432\u044b\u043f\u0443\u0441\u043a, \u0433\u043e\u0442\u043e\u0432\u044b\u0439 \u0434\u043b\u044f \u043f\u043e\u0432\u0441\u0435\u043c\u0435\u0441\u0442\u043d\u043e\u0433\u043e \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f. \u041a\u043e\u0434 \u043d\u0430\u043f\u0438\u0441\u0430\u043d \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 Go \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-107696","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 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