{"id":116388,"date":"2024-06-06T15:39:57","date_gmt":"2024-06-06T13:39:57","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/stabilnyj-vypusk-subd-mariadb-11-4"},"modified":"2024-06-06T15:39:57","modified_gmt":"2024-06-06T13:39:57","slug":"stabilnyj-vypusk-subd-mariadb-11-4","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/news\/stabilnyj-vypusk-subd-mariadb-11-4","title":{"rendered":"Stabiln\u00e9 vydanie datab\u00e1zov\u00e9ho syst\u00e9mu MariaDB 11.4","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Bol vydan\u00e1 verzia datab\u00e1zov\u00e9ho syst\u00e9mu MariaDB 11.4.2, ktor\u00e1 je ozna\u010den\u00e1 ako prv\u00e9 stabiln\u00e9 vydanie vetvy 11.4. Vetva MariaDB 11.4 patr\u00ed do kateg\u00f3rie vydan\u00ed s dlhodobou podporou a bude ma\u0165 podporu minim\u00e1lne 5 rokov. Z\u00e1rove\u0148 je k dispoz\u00edcii verzia MariaDB 11.5.1 so statusom kandid\u00e1ta na vydanie a bola vytvoren\u00e1 vetva 11.6, v ktorej sa bude vyv\u00edja\u0165 nov\u00e1 funkcionalita.    <\/p>\n<p>Projekt MariaDB vyv\u00edja odno\u017e MySQL, ktor\u00e1 si zachov\u00e1va sp\u00e4tn\u00fa kompatibilitu a l\u00ed\u0161i sa integr\u00e1ciou dodato\u010dn\u00fdch \u00falo\u017en\u00fdch enginov a roz\u0161\u00edren\u00fdmi mo\u017enos\u0165ami. Rozvoj MariaDB koordinuje nez\u00e1visl\u00e1 organiz\u00e1cia MariaDB Foundation pod\u013ea otvoren\u00e9ho a transparentn\u00e9ho procesu v\u00fdvoja, nez\u00e1visl\u00e9ho od konkr\u00e9tnych v\u00fdrobcov. MariaDB sa dod\u00e1va namiesto MySQL v mnoh\u00fdch distrib\u00faci\u00e1ch Linuxu (RHEL, SUSE, Fedora, openSUSE, Slackware, OpenMandriva, ROSA, Arch Linux, Debian) a je implementovan\u00e1 v tak\u00fdch ve\u013ek\u00fdch projektoch, ako je Wikipedia, Google Cloud SQL a Nimbuzz.       <\/p>\n<p>Medzi zmenami vo vetve MariaDB 11.4 v porovnan\u00ed s predch\u00e1dzaj\u00facim LTS vydan\u00edm 10.11:  <\/p>\n<ul>\n<li class=\"l\"> V\u00fdrazne bol vylep\u0161en\u00fd optimaliz\u00e1tor dotazov, ktor\u00fd bol prepracovan\u00fd na nov\u00fd v\u00e1hov\u00fd model (cost model), poskytuj\u00faci presnej\u0161ie predpovedanie v\u00e1h ka\u017ed\u00e9ho pl\u00e1nu vykonania dotazu. Predt\u00fdm pou\u017e\u00edvan\u00fd model bol dobre prisp\u00f4soben\u00fd na h\u013eadanie optim\u00e1lneho indexu, ale mal probl\u00e9my s aplikovate\u013enos\u0165ou oper\u00e1ci\u00ed skenovania tabuliek, skenovania indexov alebo v\u00fdberu na z\u00e1klade rozsahov. V novom modeli bol tento nedostatok odstr\u00e1nen\u00fd zmenou z\u00e1kladnej v\u00e1hy oper\u00e1ci\u00ed spojen\u00fdch so skladovac\u00edm motorom. Napr\u00edklad pre oper\u00e1cie so skladovan\u00edm, ako je sekven\u010dn\u00e9 skenovanie z\u00e1znamov, sa teraz predpoklad\u00e1, \u017ee d\u00e1ta s\u00fa ulo\u017een\u00e9 na r\u00fdchlom SSD \u00falo\u017eisku. Navy\u0161e boli doladen\u00e9 aj \u010fal\u0161ie v\u00e1hov\u00e9 parametre optimaliz\u00e1tora, \u010do napr\u00edklad umo\u017enilo implementova\u0165 mo\u017enos\u0165 vyu\u017e\u00edvania indexov pre oper\u00e1cie \u201eORDER BY\/GROUP BY\u201c v poddotazoch a zr\u00fdchli\u0165 pr\u00e1cu s ve\u013emi mal\u00fdmi tabu\u013ekami.\n<li class=\"l\"> V\u00fdrazne ur\u00fdchlen\u00e9 spracovanie poddotazov vo v\u00fdrazoc UPDATE a DELETE, obmedzen\u00fdch na jednu tabu\u013eku.\n<li class=\"l\"> Zabezpe\u010den\u00e9 vyu\u017e\u00edvanie indexov v dotazoch, kde s\u00fa funkcie DATE a YEAR porovn\u00e1van\u00e9 s kon\u0161tantou, napr\u00edklad \u201eSELECT * FROM t2 WHERE YEAR(a) = 2024\u201c alebo \u201eSELECT * FROM t2 WHERE DATE(a)\"<br \/>\n<br \/>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=61324\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u0421\u0423\u0411\u0414 MariaDB 11.4.2, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043e\u0442\u043c\u0435\u0447\u0435\u043d \u043a\u0430\u043a \u043f\u0435\u0440\u0432\u044b\u0439 \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u044b\u0439 \u0440\u0435\u043b\u0438\u0437 \u0432\u0435\u0442\u043a\u0438 11.4. \u0412\u0435\u0442\u043a\u0430 MariaDB 11.4 \u043e\u0442\u043d\u0435\u0441\u0435\u043d\u0430 \u043a \u043a\u0430\u0442\u0435\u0433\u043e\u0440\u0438\u0438 \u0432\u044b\u043f\u0443\u0441\u043a\u043e\u0432 \u0441 \u0434\u043b\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u043c \u0441\u0440\u043e\u043a\u043e\u043c \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 \u0438 \u0431\u0443\u0434\u0435\u0442 \u0441\u043e\u043f\u0440\u043e\u0432\u043e\u0436\u0434\u0430\u0442\u044c\u0441\u044f \u043a\u0430\u043a \u043c\u0438\u043d\u0438\u043c\u0443\u043c 5 \u043b\u0435\u0442. \u041e\u0434\u043d\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u043e \u0434\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u0432\u044b\u043f\u0443\u0441\u043a MariaDB 11.5.1, \u0438\u043c\u0435\u044e\u0449\u0438\u0439 \u0441\u0442\u0430\u0442\u0443\u0441 \u043a\u0430\u043d\u0434\u0438\u0434\u0430\u0442\u0430 \u0432 \u0440\u0435\u043b\u0438\u0437\u044b, \u0438 \u0441\u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0430 \u0432\u0435\u0442\u043a\u0430 11.6, \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u0431\u0443\u0434\u0435\u0442 \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0442\u044c\u0441\u044f \u043d\u043e\u0432\u0430\u044f \u0444\u0443\u043d\u043a\u0446\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u044c. \u041f\u0440\u043e\u0435\u043a\u0442\u043e\u043c MariaDB \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u043e\u0442\u0432\u0435\u0442\u0432\u043b\u0435\u043d\u0438\u0435 [&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-116388","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.4 - 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