{"id":103715,"date":"2022-04-05T15:36:50","date_gmt":"2022-04-05T13:36:50","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-ferretdb-0-1-realizaczii-mongodb-na-baze-subd-postgresql"},"modified":"2022-04-05T15:36:50","modified_gmt":"2022-04-05T13:36:50","slug":"vypusk-ferretdb-0-1-realizaczii-mongodb-na-baze-subd-postgresql","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/vypusk-ferretdb-0-1-realizaczii-mongodb-na-baze-subd-postgresql","title":{"rendered":"FerretDB 0.1 kiad\u00e1s, a MongoDB PostgreSQL alap\u00fa megval\u00f3s\u00edt\u00e1sa","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Megjelent a FerretDB 0.1 projektkiad\u00e1sa (kor\u00e1bban MangoDB n\u00e9ven), amely lehet\u0151v\u00e9 teszi a MongoDB dokumentum-orient\u00e1lt adatb\u00e1zis PostgreSQL-re t\u00f6rt\u00e9n\u0151 cser\u00e9j\u00e9t an\u00e9lk\u00fcl, hogy az alkalmaz\u00e1sok k\u00f3dj\u00e1ban v\u00e1ltoztat\u00e1sokat kellene v\u00e9gezni. A FerretDB egy proxy szerverk\u00e9nt m\u0171k\u00f6dik, amely a MangoDB-h\u00edv\u00e1sokat SQL lek\u00e9rdez\u00e9sekk\u00e9 alak\u00edtja PostgreSQL-hez, \u00edgy a PostgreSQL t\u00e9nyleges t\u00e1rol\u00f3k\u00e9nt haszn\u00e1lhat\u00f3. A k\u00f3d Go nyelven \u00edr\u00f3dott \u00e9s az Apache 2.0 licenc alatt \u00e9rhet\u0151 el. <\/p>\n

A migr\u00e1ci\u00f3s ig\u00e9ny a MongoDB SSPL z\u00e1rt licenc\u00e9re val\u00f3 \u00e1tt\u00e9r\u00e9s\u00e9b\u0151l ad\u00f3dhat, amely az AGPLv3 licenc alapj\u00e1n k\u00e9sz\u00fclt, de nem ny\u00edlt forr\u00e1sk\u00f3d\u00fa, mivel diszkr\u00e9t k\u00f6vetelm\u00e9nyt t\u00e1maszt az SSPL licenc alatt nem csak az alkalmaz\u00e1s k\u00f3dj\u00e1nak, hanem az \u00f6sszes, a felh\u0151szolg\u00e1ltat\u00e1s biztos\u00edt\u00e1s\u00e1hoz sz\u00fcks\u00e9ges komponens forr\u00e1sk\u00f3dj\u00e1nak biztos\u00edt\u00e1s\u00e1ra is. <\/p>\n

A FerretDB c\u00e9lcsoportj\u00e1ba azok a felhaszn\u00e1l\u00f3k tartoznak, akik nem haszn\u00e1lj\u00e1k a MongoDB kiterjesztett funkci\u00f3it az alkalmaz\u00e1saikban, de szeretn\u00e9k haszn\u00e1lni a teljesen ny\u00edlt forr\u00e1sk\u00f3d\u00fa programstacket. A FerretDB jelenlegi fejleszt\u00e9si f\u00e1zis\u00e1ban eddig csak a MongoDB leggyakrabban haszn\u00e1lt funkci\u00f3inak egy r\u00e9sz\u00e9t t\u00e1mogatja. A j\u00f6v\u0151ben a MongoDB illeszt\u0151programokkal val\u00f3 teljes kompatibilit\u00e1s el\u00e9r\u00e9s\u00e9t tervezik, \u00e9s lehet\u0151v\u00e9 teszik a FerretDB \u00e1tl\u00e1that\u00f3 helyettes\u00edt\u00e9st a MongoDB sz\u00e1m\u00e1ra. <\/p>\n

Eml\u00e9kezz\u00fcnk, hogy a MongoDB a gyors \u00e9s sk\u00e1l\u00e1zhat\u00f3 rendszerek k\u00f6z\u00f6tt helyezkedik el, amelyek kulcs\/\u00e9rt\u00e9k form\u00e1tumban kezelik az adatokat, valamint a rel\u00e1ci\u00f3s adatb\u00e1zisok k\u00f6z\u00f6tt, amelyek funkcion\u00e1lisak \u00e9s k\u00e9nyelmesek a lek\u00e9rdez\u00e9sek megfogalmaz\u00e1s\u00e1ban. A MongoDB t\u00e1mogatja a dokumentumok JSON-szer\u0171 form\u00e1tumban t\u00f6rt\u00e9n\u0151 t\u00e1rol\u00e1s\u00e1t, el\u00e9gg\u00e9 rugalmas lek\u00e9rdez\u00e9si nyelve van, k\u00e9pes indexeket l\u00e9trehozni a k\u00fcl\u00f6nb\u00f6z\u0151 t\u00e1rolt attrib\u00fatumokra, hat\u00e9konyan biztos\u00edtja a nagym\u00e9ret\u0171 bin\u00e1ris objektumok t\u00e1rol\u00e1s\u00e1t, t\u00e1mogatja az adatb\u00e1zisban t\u00f6rt\u00e9n\u0151 adatok m\u00f3dos\u00edt\u00e1s\u00e1nak \u00e9s hozz\u00e1ad\u00e1s\u00e1nak m\u0171veleteinek napl\u00f3z\u00e1s\u00e1t, k\u00e9pes m\u0171k\u00f6dni a Map\/Reduce paradigm\u00e1val, \u00e9s t\u00e1mogatja a replik\u00e1ci\u00f3t, valamint a hibat\u0171r\u0151 konfigur\u00e1ci\u00f3k ki\u00e9p\u00edt\u00e9s\u00e9t. <\/p>\n

A FerretDB 0.1.0 kiad\u00e1s\u00e1ban teljesen \u00e1tdolgozt\u00e1k az adatlek\u00e9rdez\u00e9si m\u00f3dszert a PostgreSQL-b\u0151l. Kor\u00e1bban minden be\u00e9rkez\u0151 MongoDB-k\u00e9r\u00e9shez egy SQL-lek\u00e9rdez\u00e9s k\u00e9sz\u00fclt a PostgreSQL-hez, amely JSON-form\u00e1tummal dolgoz\u00f3 funkci\u00f3kat haszn\u00e1lt, \u00e9s az eredm\u00e9nyek sz\u0171r\u00e9s\u00e9t a PostgreSQL oldal\u00e1n hajtotta v\u00e9gre. A PostgreSQL \u00e9s a MongoDB json-funkci\u00f3inak szemantik\u00e1ja k\u00f6zti elt\u00e9r\u00e9sek miatt a k\u00fcl\u00f6nb\u00f6z\u0151 t\u00edpusok \u00f6sszehasonl\u00edt\u00e1sa \u00e9s rendez\u00e9se sor\u00e1n elt\u00e9r\u00e9sek l\u00e9ptek fel. Ennek a probl\u00e9m\u00e1nak a megold\u00e1s\u00e1ra mostant\u00f3l a PostgreSQL-b\u0151l redund\u00e1ns adatok ker\u00fclnek kiemel\u00e9sre, \u00e9s a FerretDB-n\u00e9l t\u00f6rt\u00e9nik az eredm\u00e9ny sz\u0171r\u00e9se, ami lehet\u0151v\u00e9 tette a MongoDB viselked\u00e9s\u00e9nek megism\u00e9tl\u00e9s\u00e9t a legt\u00f6bb helyzetben. <\/p>\n

A kompatibilit\u00e1s n\u00f6vel\u00e9s\u00e9nek \u00e1ra a teljes\u00edtm\u00e9ny cs\u00f6kken\u00e9se lett, amelyet a j\u00f6v\u0151beli kiad\u00e1sokban a FerretDB oldal\u00e1n a viselked\u00e9s elt\u00e9r\u00e9seivel rendelkez\u0151 lek\u00e9rdez\u00e9sek szelekt\u00edv sz\u0171r\u00e9s\u00e9vel terveznek kompenz\u00e1lni. P\u00e9ld\u00e1ul a \"db.collection.find({_id: 'some-id-value'})\" lek\u00e9rdez\u00e9s teljes m\u00e9rt\u00e9kben PostgreSQL-ben kezelhet\u0151. A projekt els\u0151dleges c\u00e9lja ezen a fejleszt\u00e9si szakaszon a MongoDB-vel val\u00f3 kompatibilit\u00e1s el\u00e9r\u00e9se, m\u00edg a teljes\u00edtm\u00e9ny egyel\u0151re a m\u00e1sodik helyre szorul. Az \u00faj verzi\u00f3 funkcion\u00e1lis v\u00e1ltoz\u00e1sai k\u00f6z\u00f6tt szerepel minden bitoper\u00e1tor, az \" $eq \" \u00f6sszehasonl\u00edt\u00f3 oper\u00e1tor, valamint az \"$elemMatch\" \u00e9s \"$bitsAllClear\" oper\u00e1torok t\u00e1mogat\u00e1sa.
\n
Forr\u00e1s: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\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 0.1 (\u0431\u044b\u0432\u0448\u0438\u0439 MangoDB), \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 MangoDB \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 […]<\/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-103715","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\udd47A FerretDB 0.1 kiad\u00e1sa, a PostgreSQL alap\u00fa MongoDB megval\u00f3s\u00edt\u00e1sa | ProHoster","description":"Megjelent a FerretDB 0.1 kiad\u00e1sa (kor\u00e1bban MangoDB), amely lehet\u0151v\u00e9 teszi a dokumentum-orient\u00e1lt MongoDB adatb\u00e1zis PostgreSQL-re cser\u00e9j\u00e9t a felhaszn\u00e1l\u00f3i alkalmaz\u00e1sok k\u00f3dj\u00e1nak m\u00f3dos\u00edt\u00e1sa n\u00e9lk\u00fcl.","canonical_url":"https:\/\/prohoster.info\/hu\/blog\/news\/vypusk-ferretdb-0-1-realizaczii-mongodb-na-baze-subd-postgresql","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"hu_HU","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u0412\u044b\u043f\u0443\u0441\u043a FerretDB 0.1, \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 MongoDB \u043d\u0430 \u0431\u0430\u0437\u0435 \u0421\u0423\u0411\u0414 PostgreSQL | ProHoster","og:description":"\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 0.1 (\u0431\u044b\u0432\u0448\u0438\u0439 MangoDB), \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.","og:url":"https:\/\/prohoster.info\/hu\/blog\/news\/vypusk-ferretdb-0-1-realizaczii-mongodb-na-baze-subd-postgresql","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2022-04-05T13:36:50+00:00","article:modified_time":"2022-04-05T13:36:50+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"103715","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":"default","schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"seo_analyzer_scan_date":null,"breadcrumb_settings":null,"limit_modified_date":false,"reviewed_by":null,"ai":null,"created":"2022-04-05 13:37:13","updated":"2022-10-02 21:35:28","focus_keyword":null,"additional_keywords":null,"truseo_locale":null},"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/posts\/103715","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/comments?post=103715"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/posts\/103715\/revisions"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/media?parent=103715"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/categories?post=103715"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/tags?post=103715"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}