{"id":161781,"date":"2026-02-19T11:11:59","date_gmt":"2026-02-19T09:11:59","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/stabilnyj-vypusk-subd-mariadb-12-2"},"modified":"2026-02-19T11:11:59","modified_gmt":"2026-02-19T09:11:59","slug":"stabilnyj-vypusk-subd-mariadb-12-2","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/stabilnyj-vypusk-subd-mariadb-12-2","title":{"rendered":"Stabiln\u00ed vyd\u00e1n\u00ed datab\u00e1ze MariaDB 12.2","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Byla vyd\u00e1na verze datab\u00e1zov\u00e9ho syst\u00e9mu MariaDB 12.2.2, kter\u00e1 je ozna\u010dena jako prvn\u00ed stabiln\u00ed release v\u011btve 12.2. V\u011btev MariaDB 12.2 byla za\u0159azena mezi pr\u016fb\u011b\u017en\u00e9 verze (rolling), pokra\u010duje v postupn\u00e9m v\u00fdvoji funkcionality a nahradila v\u011btev MariaDB 12.1. Sou\u010dasn\u011b byla uvoln\u011bna verze MariaDB 12.3.1 s novou implementac\u00ed binlogu, kter\u00e1 m\u00e1 status kandid\u00e1ta na verzi budouc\u00ed LTS-v\u011btve. V\u011btev MariaDB 12.2 bude podporov\u00e1na a\u017e do vyd\u00e1n\u00ed verze 12.3.2.    <\/p>\n<p>Projekt MariaDB vyv\u00edj\u00ed odvozenou verzi od MySQL, kter\u00e1 zachov\u00e1v\u00e1 zp\u011btnou kompatibilitu a odli\u0161uje se integrac\u00ed dal\u0161\u00edch \u00falo\u017ei\u0161\u0165 a roz\u0161\u00ed\u0159en\u00fdmi mo\u017enostmi. Rozvoj MariaDB dohl\u00ed\u017e\u00ed nez\u00e1visl\u00e1 organizace MariaDB Foundation v souladu s otev\u0159en\u00fdm a transparentn\u00edm procesem v\u00fdvoje, kter\u00fd nen\u00ed z\u00e1visl\u00fd na jednotliv\u00fdch v\u00fdrobc\u00edch. MariaDB je dod\u00e1v\u00e1na m\u00edsto MySQL v mnoha distribuc\u00edch Linuxu (RHEL, SUSE, Fedora, openSUSE, Slackware, OpenMandriva, ROSA, Arch Linux, Debian) a je implementov\u00e1na v takov\u00fdch v\u00fdznamn\u00fdch projektech, jako jsou Wikipedia, Google Cloud SQL a Nimbuzz.       <\/p>\n<p>Mezi zm\u011bnami ve v\u011btvi MariaDB 12.2:  <\/p>\n<ul>\n<li class=\"l\"> V re\u017eimu kompatibility s datab\u00e1zov\u00fdm syst\u00e9mem Oracle byly implementov\u00e1ny funkce TO_NUMBER (p\u0159eveden\u00ed \u0159et\u011bzce na \u010d\u00edslo) a TRUNC (zkr\u00e1cen\u00ed data, nap\u0159\u00edklad na hodinu, den, m\u011bs\u00edc, rok).\n<li class=\"l\"> P\u0159i prov\u00e1d\u011bn\u00ed operac\u00ed spojen\u00edm tabulek (JOIN) byla implementov\u00e1na optimalizace zohled\u0148uj\u00edc\u00ed unik\u00e1tnost \u0159\u00e1dk\u016f v poddotazech s v\u00fdrazem \u201eGROUP BY\u201c pro p\u0159esn\u011bj\u0161\u00ed p\u0159edpov\u011b\u010f po\u010dtu v\u00fdsledn\u00fdch \u0159\u00e1dk\u016f (out_rows) a spr\u00e1vn\u00e9 pou\u017eit\u00ed index\u016f.\n<li class=\"l\"> Byly p\u0159id\u00e1ny nov\u00e9 mo\u017enosti ovl\u00e1d\u00e1n\u00ed optimaliz\u00e1toru ROWID_FILTER\/NO_ROWID_FILTER a INDEX_MERGE\/NO_INDEX_MERGE, stejn\u011b jako mo\u017enost neexplicitn\u00edho uv\u00e1d\u011bn\u00ed n\u00e1zv\u016f blok\u016f v dotazech (lze c\u00edlen\u011b aplikovat optimaliza\u010dn\u00ed mo\u017enosti na \u010d\u00e1sti dotaz\u016f odkazov\u00e1n\u00edm na n\u011b podle n\u00e1zv\u016f \u201eselect#N\u201c, kde N \u2014 po\u0159adov\u00e9 \u010d\u00edslo bloku). Nap\u0159\u00edklad: \u201eselect \/*+ JOIN_ORDER(@select#2\" twenty,ten) *\/ ...\n<li class=\"l\"> Byla odstran\u011bna omezen\u00ed na \u00farove\u0148 vlo\u017eenosti struktur v funkc\u00edch pro pr\u00e1ci s JSON (odstran\u011bn limit JSON_DEPTH_LIMIT, kter\u00fd d\u0159\u00edve m\u011bl hodnotu 32).\n<li class=\"l\"> Byla p\u0159id\u00e1na tabulka TRIGGERED_UPDATE_COLUMNS do sch\u00e9matu INFORMATION_SCHEMA (INFORMATION_SCHEMA.TRIGGERED_UPDATE_COLUMNS), kter\u00e1 ukazuje sloupce m\u011bn\u011bn\u00e9 p\u0159i aktivaci triggeru.\n<li class=\"l\"> Ve tabulce PARAMETERS v sch\u00e9matu INFORMATION_SCHEMA byl implementov\u00e1n sloupec PARAMETER_DEFAULT, obsahuj\u00edc\u00ed v\u00fdchoz\u00ed hodnoty parametr\u016f ulo\u017een\u00fdch procedur.\n<li class=\"l\"> Byla implementov\u00e1na experiment\u00e1ln\u00ed podpora v\u00fdrazu \u201eCREATE GLOBAL TEMPORARY TABLE\u201c pro vytv\u00e1\u0159en\u00ed glob\u00e1ln\u00edch do\u010dasn\u00fdch tabulek. Tyto do\u010dasn\u00e9 tabulky jsou odstran\u011bny po skon\u010den\u00ed relace a jsou viditeln\u00e9 v\u0161em u\u017eivatel\u016fm, ale obsahuj\u00ed data individu\u00e1ln\u00ed pro ka\u017ed\u00e9ho u\u017eivatele.\n<li class=\"l\"> V testovac\u00edm re\u017eimu byla nab\u00eddnuta vylep\u0161en\u00e1 podpora replikace mezi tabulkami, kter\u00e9 maj\u00ed odli\u0161nou strukturu.    <\/ul>\n<p>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=64826\">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 12.2.2, \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 12.2. \u0412\u0435\u0442\u043a\u0430 MariaDB 12.2 \u043e\u0442\u043d\u0435\u0441\u0435\u043d\u0430 \u043a \u043f\u0440\u043e\u043c\u0435\u0436\u0443\u0442\u043e\u0447\u043d\u044b\u043c \u0432\u044b\u043f\u0443\u0441\u043a\u0430\u043c (rolling), \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0430\u0435\u0442 \u043f\u043e\u0441\u0442\u0435\u043f\u0435\u043d\u043d\u043e\u0435 \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u0435 \u0444\u0443\u043d\u043a\u0446\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u0438 \u0438 \u043f\u0440\u0438\u0448\u043b\u0430 \u043d\u0430 \u0441\u043c\u0435\u043d\u0443 \u0432\u0435\u0442\u043a\u0435 MariaDB 12.1. \u041e\u0434\u043d\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u043e \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0432\u044b\u043f\u0443\u0441\u043a MariaDB 12.3.1 \u0441 \u043d\u043e\u0432\u043e\u0439 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 binlog, \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 \u0431\u0443\u0434\u0443\u0449\u0435\u0439 LTS-\u0432\u0435\u0442\u043a\u0438. \u0412\u0435\u0442\u043a\u0430 MariaDB 12.2 \u0431\u0443\u0434\u0435\u0442 \u0441\u043e\u043f\u0440\u043e\u0432\u043e\u0436\u0434\u0430\u0442\u044c\u0441\u044f \u0434\u043e \u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-161781","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u0421\u0423\u0411\u0414 MariaDB 12.2.2, \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 12.2.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta 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