{"id":116338,"date":"2024-06-04T21:39:58","date_gmt":"2024-06-04T19:39:58","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/pervyj-stabilnyj-reliz-subd-duckdb"},"modified":"2024-06-04T21:39:58","modified_gmt":"2024-06-04T19:39:58","slug":"pervyj-stabilnyj-reliz-subd-duckdb","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/news\/pervyj-stabilnyj-reliz-subd-duckdb","title":{"rendered":"Prv\u00fd stabiln\u00fd release SDB DuckDB","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Po \u0161iestich rokoch v\u00fdvoja bol predstaven\u00fd vydanie DBMS DuckDB 1.0, ktor\u00fd je prezentovan\u00fd ako alternat\u00edva k SQLite pre analytick\u00e9 dotazy. DuckDB kombinuje vlastnosti SQLite, ako s\u00fa kompaktnos\u0165, mo\u017enos\u0165 pripojenia vo forme zabudovanej kni\u017enice, ulo\u017eenie datab\u00e1zy v jednom s\u00fabore a intuit\u00edvne rozhranie pr\u00edkazov\u00e9ho riadku, s prostriedkami a optimaliz\u00e1ciami na vykon\u00e1vanie analytick\u00fdch dotazov, ktor\u00e9 pokr\u00fdvaj\u00fa zna\u010dn\u00fa \u010das\u0165 ulo\u017een\u00fdch \u00fadajov, napr\u00edklad vykon\u00e1vaj\u00face agreg\u00e1ciu v\u0161etk\u00fdch obsahu tabuliek alebo zl\u00fa\u010denie nieko\u013ek\u00fdch ve\u013ek\u00fdch tabuliek. K\u00f3d projektu je nap\u00edsan\u00fd v jazyku C++ a \u0161\u00edri sa pod licenciou MIT.     <\/p>\n<p>Verzia 1.0 je ozna\u010den\u00e1 ako prv\u00e9 stabiln\u00e9 vydanie projektu, pri\u010dom sa pri jej pr\u00edprave kl\u00e1dol d\u00f4raz na zv\u00fd\u0161enie stability, a nie na roz\u0161irovanie funk\u010dnosti. V novej verzii je taktie\u017e stanoven\u00e1 fix\u00e1cia form\u00e1tu ukladania \u00fadajov, pre ktor\u00fd sa od posledn\u00e9ho vydania zabezpe\u010duje sp\u00e4tn\u00e1 kompatibilita. V nasleduj\u00facich vydaniach sa v\u00fdvoj\u00e1ri pl\u00e1nuj\u00fa opatrnej\u0161ie venova\u0165 prid\u00e1vaniu nov\u00fdch funkci\u00ed a zabezpe\u010di\u0165 zachovanie kompatibility medzi vydaniami, ako aj stabiliz\u00e1ciu dialektu SQL a C API. Ak bude v bud\u00facnosti potrebn\u00e9 zmeni\u0165 semantiku SQL, v\u00fdvoj\u00e1ri vopred zverejnia upozornenie na nadch\u00e1dzaj\u00face zmeny a poskytn\u00fa obch\u00e1dzkov\u00e9 rie\u0161enia na zachovanie funk\u010dnosti existuj\u00faceho k\u00f3du.      <\/p>\n<p>DuckDB podporuje roz\u0161\u00edren\u00fd dialekt jazyka SQL, ktor\u00fd obsahuje dodato\u010dn\u00e9 mo\u017enosti na spracovanie ve\u013emi zlo\u017eit\u00fdch a dlhodob\u00fdch dotazov. Napr\u00edklad je mo\u017en\u00e9 pou\u017e\u00edva\u0165 zlo\u017een\u00e9 typy (polia, \u0161trukt\u00fary, zlu\u010denia), ako aj vykon\u00e1va\u0165 \u013eubovo\u013en\u00e9 a vnoren\u00e9 korelovan\u00e9 poddotazy. Podporuje sa s\u00fabe\u017en\u00e9 vykon\u00e1vanie viacer\u00fdch dotazov, vykon\u00e1vanie dotazov priamo z s\u00faborov vo form\u00e1te CSV a Parquet. Je dostupn\u00e1 podpora importu z DBMS PostgreSQL.    <\/p>\n<p>Okrem k\u00f3du shellu z SQLite projekt vyu\u017e\u00edva vy\u010dlenen\u00fd parser z PostgreSQL, komponent Date Math z MonetDB, vlastn\u00fa implement\u00e1ciu oknov\u00fdch funkci\u00ed (na z\u00e1klade algoritmu Segment Tree Aggregation), spracovate\u013e regul\u00e1rnych v\u00fdrazov na z\u00e1klade kni\u017enice RE2, vlastn\u00fd optimaliz\u00e1tor dopytov, MVCC mechanizmus spr\u00e1vy s\u00fa\u010dasn\u00e9ho vykon\u00e1vania \u00faloh (Multi-Version Concurrency Control) a tie\u017e vektorov\u00fd vykon\u00e1vac\u00ed motor dopytov na z\u00e1klade algoritmu Hyper-Pipelining Query Execution, ktor\u00fd umo\u017e\u0148uje spracov\u00e1va\u0165 ve\u013ek\u00e9 mno\u017estv\u00e1 hodn\u00f4t v jednej oper\u00e1cii.<br \/>\n<br \/>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=61309\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u043e\u0441\u043b\u0435 \u0448\u0435\u0441\u0442\u0438 \u043b\u0435\u0442 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u0421\u0423\u0411\u0414 DuckDB 1.0, \u043f\u043e\u0437\u0438\u0446\u0438\u043e\u043d\u0438\u0440\u0443\u0435\u043c\u043e\u0439 \u043a\u0430\u043a \u0432\u0430\u0440\u0438\u0430\u043d\u0442 SQLite \u0434\u043b\u044f \u0430\u043d\u0430\u043b\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432. DuckDB \u0441\u043e\u0447\u0435\u0442\u0430\u0435\u0442 \u0442\u0430\u043a\u0438\u0435 \u0441\u0432\u043e\u0439\u0441\u0442\u0432\u0430 SQLite, \u043a\u0430\u043a \u043a\u043e\u043c\u043f\u0430\u043a\u0442\u043d\u043e\u0441\u0442\u044c, \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u044f \u0432 \u0444\u043e\u0440\u043c\u0435 \u0432\u0441\u0442\u0440\u0430\u0438\u0432\u0430\u0435\u043c\u043e\u0439 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438, \u0445\u0440\u0430\u043d\u0435\u043d\u0438\u0435 \u0411\u0414 \u0432 \u043e\u0434\u043d\u043e\u043c \u0444\u0430\u0439\u043b\u0435 \u0438 \u0443\u0434\u043e\u0431\u043d\u044b\u0439 CLI-\u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441, \u0441\u043e \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u0430\u043c\u0438 \u0438 \u043e\u043f\u0442\u0438\u043c\u0438\u0437\u0430\u0446\u0438\u044f\u043c\u0438 \u0434\u043b\u044f \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0430\u043d\u0430\u043b\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432, \u043e\u0445\u0432\u0430\u0442\u044b\u0432\u0430\u044e\u0449\u0438\u0445 \u0437\u043d\u0430\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u0443\u044e \u0447\u0430\u0441\u0442\u044c \u0445\u0440\u0430\u043d\u0438\u043c\u044b\u0445 \u0434\u0430\u043d\u043d\u044b\u0445, \u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u044e\u0449\u0438\u0445 \u0430\u0433\u0440\u0435\u0433\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0432\u0441\u0435\u0433\u043e \u0441\u043e\u0434\u0435\u0440\u0436\u0438\u043c\u043e\u0433\u043e [&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-116338","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.5 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041f\u043e\u0441\u043b\u0435 \u0448\u0435\u0441\u0442\u0438 \u043b\u0435\u0442 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u0421\u0423\u0411\u0414 DuckDB 1.0, \u043f\u043e\u0437\u0438\u0446\u0438\u043e\u043d\u0438\u0440\u0443\u0435\u043c\u043e\u0439 \u043a\u0430\u043a \u0432\u0430\u0440\u0438\u0430\u043d\u0442 SQLite \u0434\u043b\u044f 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