{"id":183732,"date":"2026-10-11T16:54:25","date_gmt":"2026-10-11T14:54:25","guid":{"rendered":"https:\/\/prohoster.info\/blog\/news\/dostupna-subd-sqlite-3-54-s-optimizacziyami-rasshireniem-cli-i-prekrashheniem-podderzhki-windows-xp"},"modified":"2026-10-11T16:54:30","modified_gmt":"2026-10-11T14:54:30","slug":"sqlite-3-54-released-with-optimizations-cli-enhancements-and-end-of-windows-xp-support","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/sqlite-3-54-released-with-optimizations-cli-enhancements-and-end-of-windows-xp-support","title":{"rendered":"Dostupn\u00e1 datab\u00e1ze SQLite 3.54 s optimalizacemi, roz\u0161\u00ed\u0159en\u00edm CLI a ukon\u010den\u00edm podpory Windows XP","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Byl vyd\u00e1n SQLite 3.54, lehk\u00fd syst\u00e9m spr\u00e1vy datab\u00e1z\u00ed, kter\u00fd je k dispozici jako p\u0159ipojiteln\u00e1 knihovna. K\u00f3d SQLite je \u0161\u00ed\u0159en jako ve\u0159ejn\u00e9 vlastnictv\u00ed (public domain), co\u017e znamen\u00e1, \u017ee ho lze pou\u017e\u00edvat bez omezen\u00ed a bezplatn\u011b pro jak\u00e9koli \u00fa\u010dely. Finan\u010dn\u00ed podporu v\u00fdvoj\u00e1\u0159\u016f SQLite zaji\u0161\u0165uje speci\u00e1ln\u011b vytvo\u0159en\u00fd konsorcium. <\/p>\n<p>Hlavn\u00ed zm\u011bny:<\/p>\n<ul>\n<li class=\"l\"> Byly provedeny optimalizace, kter\u00e9 umo\u017enily zrychlit pr\u016fchod testem speedtest1 p\u0159ibli\u017en\u011b o 4 % ve srovn\u00e1n\u00ed s p\u0159edchoz\u00ed verz\u00ed a o 7,5 % ve srovn\u00e1n\u00ed s vyd\u00e1n\u00edm 3.51 p\u0159ed rokem. V\u00fdsledky se mohou li\u0161it v z\u00e1vislosti na druhu z\u00e1t\u011b\u017ee, mo\u017enostech sestaven\u00ed, CPU, kompil\u00e1toru a opera\u010dn\u00edm syst\u00e9mu.\n<li class=\"l\"> V n\u00e1stroji sqlite je implementov\u00e1na mo\u017enost pou\u017eit\u00ed escape sekvenc\u00ed pro zobrazen\u00ed dodate\u010dn\u00fdch informac\u00ed o stavu v p\u0159\u00edkazov\u00e9m \u0159\u00e1dku, nap\u0159\u00edklad \u201e\\\/x\u201c pro informace o otev\u0159en\u00e9 transakci, \u201e\\\/r\u201c pro datab\u00e1zi v re\u017eimu jen pro \u010dten\u00ed, \u201e\\\/m\u201c pro datab\u00e1zi uchov\u00e1vanou pouze v opera\u010dn\u00ed pam\u011bti, \u201e\\\/f\u201c pro vlo\u017een\u00ed n\u00e1zvu souboru s datab\u00e1z\u00ed, \u201e\\\/v\u201c pro zobrazen\u00ed verze SQLite, \u201e\\\/:\u201c a \u201e\\\/;\u201c pro sestavov\u00e1n\u00ed podm\u00ednkov\u00fdch v\u00fdraz\u016f, \u201e\\\/u\u201c a \u201e\\\/h\u201c pro vlo\u017een\u00ed jm\u00e9na u\u017eivatele a hostitele. Nastaven\u00ed \u0161ablony p\u0159\u00edkazov\u00e9ho \u0159\u00e1dku se prov\u00e1d\u00ed prost\u0159ednictv\u00edm prom\u011bnn\u00fdch prost\u0159ed\u00ed SQLITE_PS1 a SQLITE_PS2.\n<li class=\"l\"> V n\u00e1stroji sqlite byly k p\u0159\u00edkazu \u201e.mode\u201c p\u0159id\u00e1ny mo\u017enosti \u201e\u2014ifmt\u201c, \u201e\u2014rowcount on\u201c a \u201e\u2014titles always\u201c pro nastaven\u00ed form\u00e1tu \u010d\u00edsel s plovouc\u00ed desetinnou \u010d\u00e1rkou a \u0159\u00edzen\u00ed zobrazen\u00ed \u010d\u00edta\u010de \u0159\u00e1dk\u016f a n\u00e1zvu sloupce. Byl vym\u011bn\u011bn zpracovatel p\u0159\u00edkazu \u201e.diskused\u201c. V\u00fdchoz\u00ed hodnotou z\u016fst\u00e1v\u00e1 z\u00e1hlav\u00ed s n\u00e1zvy sloupc\u016f, pokud dotaz nevr\u00e1til \u017e\u00e1dn\u00e9 \u0159\u00e1dky, a tak\u00e9 byla zak\u00e1z\u00e1na \u010dist\u011bn\u00ed nulov\u00fdch bajt\u016f p\u0159i v\u00fdstupu blob\u016f v Unixov\u00fdch syst\u00e9mech.\n<li class=\"l\"> Ve pl\u00e1nova\u010di dotaz\u016f byla zrychlena vykon\u00e1n\u00ed operac\u00ed UPDATE v p\u0159\u00edpadech, kdy existuj\u00ed indexy podle v\u00fdraz\u016f, ale indexovan\u00e1 hodnota se nem\u011bn\u00ed. Byla optimalizov\u00e1na vykon\u00e1n\u00ed operac\u00ed \u201eexpr OR TRUE\u201c a \u201eexpr OR FALSE\u201c. Bylo zaji\u0161t\u011bno ignorov\u00e1n\u00ed v\u00fdrazu DISTINCT v SELECT poddotazech uveden\u00fdch napravo od oper\u00e1toru \u201eIN\u201c. Byla zrychlena zpracov\u00e1n\u00ed a sn\u00ed\u017eena spot\u0159eba pam\u011bti p\u0159i zad\u00e1v\u00e1n\u00ed v UNION dotazech v\u00fdrazu \u201eLIMIT 1\u201c.\n<li class=\"l\"> V p\u0159\u00edkazu ALTER TABLE je zaji\u0161t\u011bno zobrazen\u00ed chyby pro jak\u00e9koli pokusy o p\u0159id\u00e1n\u00ed, odstran\u011bn\u00ed nebo p\u0159ejmenov\u00e1n\u00ed sloupc\u016f se rezervovan\u00fdmi n\u00e1zvy \u201eROWID\u201c, \u201e_ROWID_\u201c a \u201eOID\u201c.\n<li class=\"l\"> Byla p\u0159id\u00e1na SQL funkce diskused() pro odhad m\u00edsta, kter\u00e9 tabulky a indexy na \u00falo\u017ei\u0161ti zab\u00edraj\u00ed.\n<li class=\"l\"> V SQL funkc\u00edch printf() a format() byly p\u0159id\u00e1ny z\u00e1stupn\u00e9 symboly \u201e%J\u201c a \u201e%j\u201c pro v\u00fdstup ve form\u00e1tu JSON.\n<li class=\"l\"> Ve funkci pr\u00e1ce s daty a \u010dasem byly p\u0159id\u00e1ny modifik\u00e1tory \u201eweekday -N\u201c a \u201eend of\u201c.\n<li class=\"l\"> Na syst\u00e9mech s podporou flagu O_TMPFILE ve funkci open() je tento re\u017eim pou\u017eit p\u0159i vytv\u00e1\u0159en\u00ed do\u010dasn\u00fdch soubor\u016f.\n<li class=\"l\"> Podpora star\u00fdch verz\u00ed opera\u010dn\u00edho syst\u00e9mu Windows, v\u010detn\u011b Windows CE a Windows XP, byla ukon\u010dena. Jako minim\u00e1ln\u00ed verze byla stanovena Windows Vista.\n<\/ul>\n<p>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=66442\">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 \u0440\u0435\u043b\u0438\u0437 SQLite 3.54, \u043b\u0435\u0433\u043a\u043e\u0432\u0435\u0441\u043d\u043e\u0439 \u0421\u0423\u0411\u0414, \u043e\u0444\u043e\u0440\u043c\u043b\u0435\u043d\u043d\u043e\u0439 \u0432 \u0432\u0438\u0434\u0435 \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0430\u0435\u043c\u043e\u0439 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438. \u041a\u043e\u0434 SQLite \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u043a\u0430\u043a \u043e\u0431\u0449\u0435\u0441\u0442\u0432\u0435\u043d\u043d\u043e\u0435 \u0434\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 (public domain), \u0442.\u0435. \u043c\u043e\u0436\u0435\u0442 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c\u0441\u044f \u0431\u0435\u0437 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u0439 \u0438 \u0431\u0435\u0437\u0432\u043e\u0437\u043c\u0435\u0437\u0434\u043d\u043e \u0432 \u043b\u044e\u0431\u044b\u0445 \u0446\u0435\u043b\u044f\u0445. \u0424\u0438\u043d\u0430\u043d\u0441\u043e\u0432\u0443\u044e \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0443 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 SQLite \u043e\u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043b\u044f\u0435\u0442 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u0441\u043e\u0437\u0434\u0430\u043d\u043d\u044b\u0439 \u043a\u043e\u043d\u0441\u043e\u0440\u0446\u0438\u0443\u043c. \u041e\u0441\u043d\u043e\u0432\u043d\u044b\u0435 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f: \u041f\u0440\u043e\u0432\u0435\u0434\u0435\u043d\u044b \u043e\u043f\u0442\u0438\u043c\u0438\u0437\u0430\u0446\u0438\u0438, \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0432\u0448\u0438\u0435 \u0443\u0441\u043a\u043e\u0440\u0438\u0442\u044c \u043f\u0440\u043e\u0445\u043e\u0436\u0434\u0435\u043d\u0438\u0435 \u0442\u0435\u0441\u0442\u0430 speedtest1 \u043f\u0440\u0438\u043c\u0435\u0440\u043d\u043e \u043d\u0430 4% \u043f\u043e \u0441\u0440\u0430\u0432\u043d\u0435\u043d\u0438\u044e \u0441 \u043f\u0440\u043e\u0448\u043b\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0435\u0439 \u0438 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":10,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-183732","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.5 - 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