{"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\/ro\/blog\/news\/dlya-postgresql-podgotovleno-dopolnenie-age-dlya-hraneniya-dannyh-v-forme-grafa","title":{"rendered":"Pentru PostgreSQL a fost preg\u0103tit un addon AGE pentru stocarea datelor sub form\u0103 de graf.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Pentru PostgreSQL o solu\u021bie pentru problema prin extragerea certificatului din<\/a><\/noindex> extensia AGE (AgensGraph-Extension) cu implementarea limbajului de interogare openCypher<\/a><\/noindex> pentru manipularea seturilor de date ierarhice interconectate, form\u00e2nd un grafic. \u00cen loc de coloane \u0219i r\u00e2nduri, bazele de date orientate pe graf folosesc o structur\u0103 asem\u0103n\u0103toare cu o re\u021bea \u2014 se definesc noduri, propriet\u0103\u021bile lor \u0219i rela\u021biile dintre noduri. AGE se r\u0103sp\u00e2nde\u0219te<\/a><\/noindex> sub licen\u021ba Apache 2.0, transmis\u0103 de compania Bitnine sub auspiciile Fondului Apache \u0219i \u00een prezent plasat\u0103 \u00een incubatorul Apache. <\/p>\n

Proiectul continu\u0103 dezvoltarea SGBD-ului AgensGraph<\/a><\/noindex>, care reprezint\u0103<\/a><\/noindex> este o modificare reworked pentru procesarea grafurilor a PostgreSQL. Principala distinc\u021bie este implementarea AGE sub form\u0103 de extensie universal\u0103, care func\u021bioneaz\u0103 ca un addon peste versiunile standard ale PostgreSQL. Ultima versiune publicat\u0103 Apache AGE 0.2.0<\/a><\/noindex> suport\u0103 func\u021bionarea cu PostgreSQL 11.<\/p>\n

\u00cen starea actual\u0103, AGE sus\u021bine<\/a><\/noindex> posibilit\u0103\u021bile limbajului de interogare Cypher, cum ar fi utilizarea expresiei \u201eCREATE\u201d pentru a defini noduri \u0219i rela\u021bii, expresia \u201eMATCH\u201d pentru a c\u0103uta date \u00een grafic conform unor condi\u021bii specifice (WHERE), \u00eentr-o anumit\u0103 ordine (ORDER BY) \u0219i cu restric\u021bii stabilite (SKIP, LIMIT). Setul de date rezultat, returnat de interogare, este definit prin expresia \u201eRETURN\u201d. Pentru a conecta mai multe interog\u0103ri \u00eentr-un lan\u021b, este disponibil\u0103 expresia \u201eWITH\u201d. <\/p>\n

Este posibil\u0103 crearea de baze de date multimodale care combin\u0103 modele de stocare ierarhic\u0103 a propriet\u0103\u021bilor sub form\u0103 de graf, modelul rela\u021bional \u0219i modelul de stocare a documentelor \u00een format JSON. Se suport\u0103 executarea de interog\u0103ri integrate, care includ elemente din limbajele SQL \u0219i Cypher.
\nEste disponibil\u0103 crearea de indec\u0219i pentru propriet\u0103\u021bile v\u00e2rfurilor \u0219i arcelor graficului.
\nPentru utilizare, este propus un set extins de tipuri Agtype, incluz\u00e2nd tipuri pentru arce, v\u00e2rfuri \u0219i c\u0103i \u00een graf. Expresiile agregate nu sunt \u00eenc\u0103 implementate. Printre func\u021biile specializate disponibile se num\u0103r\u0103: id, start_id, end_id, type, properties, head, last, length, size, startNode, endNode, timestamp, toBoolean, toFloat, toInteger \u0219i coalesce. <\/p>\n

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

Sursa: opennet.ro<\/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\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\udd47Pentru PostgreSQL, a fost preg\u0103tit\u0103 extensia AGE pentru stocarea datelor sub form\u0103 de grafic | ProHoster","description":"Pentru PostgreSQL, a fost propus\u0103 extensia AGE (AgensGraph-Extension) cu implementarea limbajului de 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