{"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\/et\/blog\/news\/pervyj-stabilnyj-reliz-subd-duckdb","title":{"rendered":"Esimene stabiilne DuckDB andmebaasi v\u00e4ljaanne","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>P\u00e4rast kuueaastast arendust on v\u00e4lja antud DuckDB andmebaasihalduri 1.0 versioon, mis on positsioneeritud SQLite variandina anal\u00fc\u00fctiliste p\u00e4ringute jaoks. DuckDB \u00fchendab sellised SQLite omadused nagu kompaktsus, v\u00f5imalus integreerida teeki, andmebaasi salvestamine \u00fches failis ja mugav CLI-liides, koos vahendite ja optimeerimistega, et teostada anal\u00fc\u00fctilisi p\u00e4ringuid, mis katavad m\u00e4rkimisv\u00e4\u00e4rse osa salvestatud andmetest, n\u00e4iteks t\u00e4iendavad kogumisi tabelite kogu sisust v\u00f5i \u00fchendavad mitut suurt tabelit. Projekti kood on kirjutatud C++ keeles ja levitatakse MIT litsentsi alusel.     <\/p>\n<p>Versioon 1.0 m\u00e4rgib projekti esimest stabiilset v\u00e4ljaannet, mille ettevalmistamisel p\u00f6\u00f6rati peamist t\u00e4helepanu stabiilsuse suurendamisele, mitte funktsionaalsuse laiendamisele. Uues versioonis on fikseeritud andmete salvestamise formati, mille suhtes tagatakse tagurpidi \u00fchilduvus alates eelmisest v\u00e4ljaandest. Edaspidistes v\u00e4ljaannetes kavatsevad arendajad uute funktsioonide lisamisel hoolikamalt l\u00e4heneda ning hoolitseda v\u00e4ljaannete vahelise \u00fchilduvuse, samuti SQL ja C API dialekti stabiliseerimise \u00fcle. Kui tulevikus on vaja SQL semantikat muuta, avaldavad arendajad eelnevalt hoiatuse tulevaste muudatuste kohta ja pakuvad lahendusi olemasoleva koodi toimimise s\u00e4ilitamiseks.      <\/p>\n<p>DuckDB toetab laiendatud SQL keele dialekti, mis sisaldab lisav\u00f5imalusi v\u00e4ga keeruliste ja pikaajaliste p\u00e4ringute t\u00f6\u00f6tlemiseks. N\u00e4iteks on v\u00f5imalik kasutada keerulisi t\u00fc\u00fcpe (massiiivid, struktuurid, \u00fchendused) ning teostada suvalisi ja sisse-v\u00e4ljendatud korreleerivaid alam-p\u00e4ringuid. Toetatakse mitme p\u00e4ringu samaaegset t\u00e4itmist, p\u00e4ringute t\u00e4itmist otse CSV ja Parquet formaadis failidest. Saadaolev on ka impordi tugi PostgreSQL andmebaasihaldurist.    <\/p>\n<p>Lisaks SQLite shell-koodile kasutab projekt PostgreSQL-st eraldi v\u00e4lja t\u00f5stetud parserit, MonetDB Date Math komponenti, oma realiseeringut aknafunktsioonidest (Segment Tree Aggregation algoritmi p\u00f5hjal), regulaaravaldiste t\u00f6\u00f6tlemise vahendit, mis p\u00f5hineb RE2 raamatukogul, oma p\u00e4ringute optimeerijat, MVCC mehhanismi (Multi-Version Concurrency Control) \u00fcheaegsete \u00fclesannete haldamiseks ning vektorkiidustatud p\u00e4ringute t\u00e4itmise mootorit Hyper-Pipelining Query Execution algoritmi p\u00f5hjal, mis v\u00f5imaldab \u00fches operatsioonis korraga t\u00f6\u00f6delda suurtes kogustes v\u00e4\u00e4rtusi.<br \/>\n<br \/>Allikas: <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 5.0.1.1 - 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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