{"id":88105,"date":"2020-07-12T13:42:29","date_gmt":"2020-07-12T11:42:29","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/dlya-postgresql-podgotovleno-dopolnenie-age-dlya-hraneniya-dannyh-v-forme-grafa"},"modified":"2020-07-12T13:42:29","modified_gmt":"2020-07-12T11:42:29","slug":"dlya-postgresql-podgotovleno-dopolnenie-age-dlya-hraneniya-dannyh-v-forme-grafa","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/dlya-postgresql-podgotovleno-dopolnenie-age-dlya-hraneniya-dannyh-v-forme-grafa","title":{"rendered":"Para PostgreSQL, foi preparado o complemento AGE para armazenamento de dados na forma de grafo.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Para PostgreSQL proposto<\/a><\/noindex> complemento AGE (AgensGraph-Extension) com a implementa\u00e7\u00e3o da linguagem de consultas openCypher<\/a><\/noindex> para manipular conjuntos de dados hier\u00e1rquicos relacionados que formam um grafo. Em vez de colunas e linhas, os bancos de dados orientados a grafos utilizam uma estrutura semelhante a uma rede \u2014 s\u00e3o definidos n\u00f3s, suas propriedades e rela\u00e7\u00f5es entre n\u00f3s. AGE \u00e9 distribu\u00eddo<\/a><\/noindex> sob a licen\u00e7a Apache 2.0, foi transferido pela empresa Bitnine sob a tutela da Apache Foundation e atualmente est\u00e1 no incubador Apache. <\/p>\n

O projeto continua o desenvolvimento do SGBD AgensGraph<\/a><\/noindex>, que representa<\/a><\/noindex> uma modifica\u00e7\u00e3o do PostgreSQL para processamento de grafos. A principal diferen\u00e7a \u00e9 a implementa\u00e7\u00e3o do AGE como um complemento universal, que funciona como uma extens\u00e3o das vers\u00f5es padr\u00e3o do PostgreSQL. O lan\u00e7amento Apache AGE 0.2.0<\/a><\/noindex> suporta a opera\u00e7\u00e3o com PostgreSQL 11.<\/p>\n

No estado atual, AGE suporta<\/a><\/noindex> possibilidades da linguagem de consulta Cypher, como a aplica\u00e7\u00e3o da express\u00e3o 'CREATE' para definir n\u00f3s e conex\u00f5es, a express\u00e3o 'MATCH' para buscar dados no grafo com base em condi\u00e7\u00f5es especificadas (WHERE), na ordem indicada (ORDER BY) e com limita\u00e7\u00f5es impostas (SKIP, LIMIT). O conjunto de dados resultante, retornado pela consulta, \u00e9 definido pela express\u00e3o 'RETURN'. Para unir v\u00e1rias consultas em uma cadeia, a express\u00e3o 'WITH' est\u00e1 dispon\u00edvel. <\/p>\n

\u00c9 poss\u00edvel a cria\u00e7\u00e3o de bancos de dados multimodais, que combinam modelos de armazenamento hier\u00e1rquico de propriedades na forma de grafo, o modelo relacional e o modelo de armazenamento de documentos no formato JSON. A execu\u00e7\u00e3o de consultas integradas que incluem elementos das linguagens SQL e Cypher \u00e9 suportada.
\n\u00c9 poss\u00edvel criar \u00edndices para propriedades de v\u00e9rtices e arestas do grafo.
\nPara uso, foi proposto um conjunto expandido de tipos Agtype, incluindo tipos para arestas, v\u00e9rtices e caminhos no grafo. Entretanto, express\u00f5es agregadas ainda n\u00e3o foram implementadas. Entre as fun\u00e7\u00f5es especializadas dispon\u00edveis est\u00e3o: id, start_id, end_id, type, properties, head, last, length, size, startNode, endNode, timestamp, toBoolean, toFloat, toInteger e coalesce. <\/p>\n

<\/a><\/noindex><\/p>\n

Fonte: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0414\u043b\u044f PostgreSQL \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d\u043e \u0434\u043e\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 AGE (AgensGraph-Extension) \u0441 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u044f\u0437\u044b\u043a\u0430 \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432 openCypher \u0434\u043b\u044f \u043c\u0430\u043d\u0438\u043f\u0443\u043b\u044f\u0446\u0438\u0439 \u0441 \u043d\u0430\u0431\u043e\u0440\u0430\u043c\u0438 \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0445 \u043c\u0435\u0436\u0434\u0443 \u0441\u043e\u0431\u043e\u0439 \u0438\u0435\u0440\u0430\u0440\u0445\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u0434\u0430\u043d\u043d\u044b\u0445, \u043e\u0431\u0440\u0430\u0437\u0443\u044e\u0449\u0438\u0445 \u0433\u0440\u0430\u0444. \u0412\u043c\u0435\u0441\u0442\u043e \u0441\u0442\u043e\u043b\u0431\u0446\u043e\u0432 \u0438 \u0441\u0442\u0440\u043e\u043a \u0433\u0440\u0430\u0444\u043e-\u043e\u0440\u0438\u0435\u043d\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u044b\u0435 \u0411\u0414 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0442 \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0443, \u043f\u043e\u0445\u043e\u0436\u0443\u044e \u043d\u0430 \u0441\u0435\u0442\u044c — \u0437\u0430\u0434\u0430\u044e\u0442\u0441\u044f \u0443\u0437\u043b\u044b, \u0438\u0445 \u0441\u0432\u043e\u0439\u0441\u0442\u0432\u0430 \u0438 \u043e\u0442\u043d\u043e\u0448\u0435\u043d\u0438\u044f \u043c\u0435\u0436\u0434\u0443 \u0443\u0437\u043b\u0430\u043c\u0438. AGE \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, \u043f\u0435\u0440\u0435\u0434\u0430\u043d \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0435\u0439 Bitnine \u043f\u043e\u0434 \u043f\u043e\u043a\u0440\u043e\u0432\u0438\u0442\u0435\u043b\u044c\u0441\u0442\u0432\u043e \u0424\u043e\u043d\u0434\u0430 Apache […]<\/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-88105","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\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\udd47Para PostgreSQL, foi preparado o complemento AGE para armazenamento de dados na forma de grafo | ProHoster","description":"Para PostgreSQL, foi proposto o complemento AGE (AgensGraph-Extension) com a implementa\u00e7\u00e3o da linguagem de 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