{"id":116050,"date":"2024-05-24T08:59:21","date_gmt":"2024-05-24T06:59:21","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-subd-sqlite-3-46"},"modified":"2024-05-24T08:59:21","modified_gmt":"2024-05-24T06:59:21","slug":"vypusk-subd-sqlite-3-46","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/vypusk-subd-sqlite-3-46","title":{"rendered":"Vyd\u00e1n\u00ed datab\u00e1zov\u00e9ho syst\u00e9mu SQLite 3.46","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Byl vyd\u00e1n SQLite 3.46, lehk\u00e1 datab\u00e1zov\u00e1 S\u0158BD, kter\u00e1 je k dispozici jako p\u0159ipojiteln\u00e1 knihovna. K\u00f3d SQLite je distribuov\u00e1n jako ve\u0159ejn\u00e9 vlastnictv\u00ed (public domain), co\u017e znamen\u00e1, \u017ee m\u016f\u017ee b\u00fdt pou\u017e\u00edv\u00e1n bez jak\u00fdchkoliv omezen\u00ed a bezplatn\u011b k jak\u00fdmkoliv \u00fa\u010del\u016fm. Finan\u010dn\u00ed podporu v\u00fdvoj\u00e1\u0159\u016fm 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\"> Byla umo\u017en\u011bna mo\u017enost pou\u017eit\u00ed znaku odd\u011blova\u010de &#171;_&#187; v \u010d\u00edslech pro p\u0159ehledn\u011bj\u0161\u00ed zobrazen\u00ed \u010d\u00edseln\u00fdch liter\u00e1l\u016f (nap\u0159. 1_234_567).\n<li class=\"l\"> Byla p\u0159id\u00e1na SQL funkce json_pretty() pro generov\u00e1n\u00ed \u010diteln\u011bj\u0161\u00edho v\u00fdstupu ve form\u00e1tu JSON, form\u00e1tovan\u00e9ho s pou\u017eit\u00edm odsazen\u00ed blok\u016f.\n<li class=\"l\"> Roz\u0161\u00ed\u0159ily se mo\u017enosti operace &#171;PRAGMA optimize&#187;, kter\u00e1 prov\u00e1d\u00ed optimalizaci datab\u00e1z\u00ed a v\u0161ech datov\u00fdch sch\u00e9mat pro dosa\u017een\u00ed nejlep\u0161\u00edho v\u00fdkonu dotaz\u016f. Byl implementov\u00e1n automaticky aplikovan\u00fd limit na dobu anal\u00fdzy datab\u00e1ze, kter\u00fd vylu\u010duje p\u0159\u00edli\u0161 dlouhou dobu zpracov\u00e1n\u00ed velk\u00fdch datab\u00e1z\u00ed. Byla p\u0159id\u00e1na nov\u00e1 bitov\u00e1 maska &#171;PRAGMA optimize(0x10000)&#187; pro samostatn\u00e9 ov\u011b\u0159ov\u00e1n\u00ed aktualizac\u00ed ve v\u0161ech tabulk\u00e1ch. Zaji\u0161t\u011bna automatick\u00e1 opakovan\u00e1 anal\u00fdza tabulek, ve kter\u00fdch chyb\u00ed z\u00e1znamy sqlite_stat1.\n<li class=\"l\"> Do SQL funkce strftime() byla p\u0159id\u00e1na podpora pro substituce %G, %g, %U a %V.\n<li class=\"l\"> Do SQL funkc\u00ed pro pr\u00e1ci s daty a \u010dasem byly p\u0159id\u00e1ny nov\u00e9 modifik\u00e1tory ceiling a floor pro \u0159\u00edzen\u00ed zpracov\u00e1n\u00ed nejednozna\u010dn\u00fdch dat, kter\u00e9 vznikaj\u00ed p\u0159i operac\u00edch posunu dat o ur\u010dit\u00e9 mno\u017estv\u00ed m\u011bs\u00edc\u016f nebo let. Zaji\u0161t\u011bno ignorov\u00e1n\u00ed modifik\u00e1tor\u016f utc a localtime, pokud m\u00e1 SQLite informace o tom, \u017ee \u010das je ji\u017e v zobrazen\u00ed UTC nebo localtime.\n<li class=\"l\"> Byly provedeny optimalizace v pl\u00e1nova\u010di dotaz\u016f. U v\u00fdraz\u016f INSERT obsahuj\u00edc\u00edch tis\u00edce hodnot v sekci VALUES je implicitn\u011b povolena optimalizace &#171;VALUES-as-coroutine&#187;, kter\u00e1 p\u0159ibli\u017en\u011b dvakr\u00e1t zrychluje anal\u00fdzu takov\u00fdch v\u00fdraz\u016f a dvakr\u00e1t sni\u017euje spot\u0159ebu pam\u011bti. U dotaz\u016f typu &#171;SELECT count(DISTINCT col) FROM &#8230;&#187; je povoleno pou\u017e\u00edv\u00e1n\u00ed index\u016f, i kdy\u017e velikost z\u00e1znam\u016f v indexu nen\u00ed men\u0161\u00ed ne\u017e z\u00e1znamy v tabulce. Zlep\u0161ena logika ur\u010dov\u00e1n\u00ed situac\u00ed, kdy jsou v argumentech SQL funkc\u00ed uvedeny konstanty. Zaji\u0161t\u011bno pou\u017eit\u00ed optimalizace push-down pro v\u00fdrazy WHERE obsahuj\u00edc\u00ed nesouvisej\u00edc\u00ed poddotazy.\n<li class=\"l\"> Byla zm\u011bn\u011bna logika zpracov\u00e1n\u00ed p\u0159ete\u010den\u00ed z\u00e1sobn\u00edku \u2014 p\u0159i zji\u0161t\u011bn\u00ed nedostatku pam\u011bti pro z\u00e1sobn\u00edk se nyn\u00ed parser pokou\u0161\u00ed alokovat dodate\u010dnou pam\u011b\u0165 z haldy, m\u00edsto toho, aby vykazoval chybu &#171;parser stack overflow&#187;.\n<li class=\"l\"> V JSON je povoleno specifikovat ovl\u00e1dac\u00ed znaky v \u0159et\u011bzcov\u00fdch liter\u00e1lech JSON5. Byla zm\u011bn\u011bna logika fungov\u00e1n\u00ed oper\u00e1tor\u016f &#171;-&gt;&#187; a &#171;-&gt;&gt;&#187;, kdy\u017e na prav\u00e9 stran\u011b obsahuje \u0159et\u011bzcov\u00fd operand pouze \u010d\u00edsla (analogicky s PostgreSQL jsou nyn\u00ed tyto operandy zpracov\u00e1ny jako \u0159et\u011bzec).\n<li class=\"l\"> V hodnot\u011b DEFAULT ve sloupc\u00edch tabulek je povoleno zad\u00e1v\u00e1n\u00ed velk\u00fdch hexadecim\u00e1ln\u00edch liter\u00e1l\u016f.      <\/ul>\n<p>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=61238\">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 3.46, \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\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u0430 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f \u0432 \u0447\u0438\u0441\u043b\u0430\u0445 \u0440\u0430\u0437\u0434\u0435\u043b\u0438\u0442\u0435\u043b\u044f &#171;_&#187; \u0434\u043b\u044f \u0431\u043e\u043b\u0435\u0435 \u043d\u0430\u0433\u043b\u044f\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0447\u0438\u0441\u043b\u043e\u0432\u044b\u0445 \u043b\u0438\u0442\u0435\u0440\u0430\u043b\u043e\u0432 (\u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, 1_234_567). \u0414\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0430 [&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-116050","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 \u0440\u0435\u043b\u0438\u0437 SQLite 3.46, \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.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/cs\/blog\/news\/vypusk-subd-sqlite-3-46\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.3\" \/>\n\t\t<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n\t\t<meta property=\"og:site_name\" content=\"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"\ud83e\udd47\u0412\u044b\u043f\u0443\u0441\u043a \u0421\u0423\u0411\u0414 SQLite 3.46 | ProHoster\" \/>\n\t\t<meta property=\"og:description\" content=\"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 SQLite 3.46, \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.\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/prohoster.info\/cs\/blog\/news\/vypusk-subd-sqlite-3-46\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:width\" content=\"350\" \/>\n\t\t<meta property=\"og:image:height\" content=\"350\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2024-05-24T06:59:21+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2024-05-24T06:59:21+00:00\" \/>\n\t\t<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"\ud83e\udd47Vyd\u00e1n\u00ed DBMS SQLite 3.46 | ProHoster","description":"Byla vyd\u00e1na verze SQLite 3.46, lehk\u00e9 DBMS, prezentovan\u00e9 jako dynamick\u00e1 knihovna. K\u00f3d SQLite je \u0161\u00ed\u0159en jako ve\u0159ejn\u00e9 vlastnictv\u00ed (public domain), tj.","canonical_url":"https:\/\/prohoster.info\/cs\/blog\/news\/vypusk-subd-sqlite-3-46","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"cs_CZ","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u0412\u044b\u043f\u0443\u0441\u043a \u0421\u0423\u0411\u0414 SQLite 3.46 | ProHoster","og:description":"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 SQLite 3.46, \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.","og:url":"https:\/\/prohoster.info\/cs\/blog\/news\/vypusk-subd-sqlite-3-46","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2024-05-24T06:59:21+00:00","article:modified_time":"2024-05-24T06:59:21+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"116050","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":"default","schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"seo_analyzer_scan_date":"2026-01-23 00:58:19","breadcrumb_settings":null,"limit_modified_date":false,"reviewed_by":null,"ai":null,"created":"2026-01-23 00:58:19","updated":"2026-01-23 00:58:19","focus_keyword":null,"additional_keywords":null,"truseo_locale":null},"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/posts\/116050","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/comments?post=116050"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/posts\/116050\/revisions"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/media?parent=116050"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/categories?post=116050"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/tags?post=116050"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}