{"id":182551,"date":"2026-07-08T22:53:49","date_gmt":"2026-07-08T20:53:50","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vyshel-postgres-pro-enterprise-dlya-1s-18-4-1-s-optimizacziyami-pod-tyazhyolye-nagruzki"},"modified":"2026-07-08T22:53:49","modified_gmt":"2026-07-08T20:53:50","slug":"vyshel-postgres-pro-enterprise-dlya-1s-18-4-1-s-optimizacziyami-pod-tyazhyolye-nagruzki","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/vyshel-postgres-pro-enterprise-dlya-1s-18-4-1-s-optimizacziyami-pod-tyazhyolye-nagruzki","title":{"rendered":"Byla vyd\u00e1na verze Postgres Pro Enterprise pro 1C 18.4.1 s optimalizacemi pro t\u011b\u017ek\u00e9 z\u00e1t\u011b\u017ee","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

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Spole\u010dnost Postgres Professional ozn\u00e1mila vyd\u00e1n\u00ed Postgres Pro Enterprise pro 1C 18.4.1<\/a>. Aktualizace je zam\u011b\u0159ena na velk\u00e9 instalace \u201e1C\u201c, kde se datab\u00e1ze pravideln\u011b setk\u00e1v\u00e1 se slo\u017eit\u00fdmi dotazy, velk\u00fdm mno\u017estv\u00edm p\u0159ipojen\u00ed, do\u010dasn\u00fdmi tabulkami, zpr\u00e1vami a pravideln\u00fdmi operacemi. V ofici\u00e1ln\u00edch pozn\u00e1mk\u00e1ch k vyd\u00e1n\u00ed<\/a> se uv\u00e1d\u00ed, \u017ee nov\u00e1 verze je zalo\u017eena na PostgreSQL 18.4 a Postgres Pro Enterprise 18.3.2.<\/p>\n

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Jednou z hlavn\u00edch zm\u011bn je mo\u017enost pou\u017e\u00edvat do\u010dasn\u00e9 tabulky, do\u010dasn\u00e9 sekvence a do\u010dasn\u00e9 pohledy na serveru hork\u00e9 rezervy. Funkce se aktivuje parametrem enable_standby_temp_tables<\/a> spole\u010dn\u011b s enable_temp_memory_catalog a hot_standby. Praktick\u00fd smysl je jednoduch\u00fd: n\u00e1ro\u010dn\u00e9 zpr\u00e1vy a ETL procesy je mo\u017en\u00e9 p\u0159esunout na standby server, ani\u017e by se zat\u011b\u017eoval hlavn\u00ed uzel.<\/p>\n

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Pro pl\u00e1nova\u010d dotaz\u016f byl p\u0159id\u00e1n mechanismus enable_join_predicate_pushdown<\/a>. Umo\u017e\u0148uje tla\u010dit podm\u00ednky spojen\u00ed z extern\u00edho dotazu do vno\u0159en\u00fdch poddotaz\u016f, aby optimaliz\u00e1tor mohl vybrat v\u00fdhodn\u011bj\u0161\u00ed pl\u00e1n prov\u00e1d\u011bn\u00ed. Tak\u00e9 byla urychlena ocen\u011bn\u00ed selektivity pro velk\u00e9 seznamy MCV a zlep\u0161ena pr\u00e1ce s omezen\u00fdmi v\u00fdb\u011bry pomoc\u00ed planner_upper_limit_estimation; to by m\u011blo b\u00fdt znateln\u00e9 v typick\u00fdch sc\u00e9n\u00e1\u0159\u00edch \u201e1C\u201c, v\u010detn\u011b uzav\u0159en\u00ed obdob\u00ed a sestaven\u00ed zpr\u00e1v.<\/p>\n

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Byly aktualizov\u00e1ny tak\u00e9 prost\u0159edky pro odolnost v\u016f\u010di chyb\u00e1m. Vestav\u011bn\u00e9 \u0159e\u0161en\u00ed BiHA<\/a> p\u0159e\u0161lo na verzi 1.8: v\u00edcestup\u0148ov\u00e1 geografick\u00e1 dostupnost a odolnost v\u016f\u010di katastrof\u00e1m ji\u017e nejsou pova\u017eov\u00e1ny za experiment\u00e1ln\u00ed, a servisn\u00ed p\u0159ipojen\u00ed mezi uzly lze chr\u00e1nit SSL certifik\u00e1ty. V Proxima se objevila adaptivn\u00ed vyva\u017eov\u00e1n\u00ed z\u00e1t\u011b\u017ee, kter\u00e1 zohled\u0148uje CPU, pam\u011b\u0165 a diskov\u00fd vstup\/v\u00fdstup, a tak\u00e9 podpora v\u00edce adres p\u0159ipojen\u00ed \u2014 IPv4, IPv6 a Unix-socket\u016f.<\/p>\n

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Do vyd\u00e1n\u00ed byly zahrnuty tak\u00e9 nov\u00e9 n\u00e1stroje a roz\u0161\u00ed\u0159en\u00ed. pgpro_iheap<\/a> p\u0159id\u00e1v\u00e1 tabulkovou metodu p\u0159\u00edstupu iheap, zam\u011b\u0159enou na zrychlen\u00ed sekven\u010dn\u00edho skenov\u00e1n\u00ed, a pgpro_temp_stats<\/a> automaticky shroma\u017e\u010fuje statistiky pro do\u010dasn\u00e9 tabulky, aby pl\u00e1nova\u010d nepracoval naslepo. Pro administr\u00e1tory byla p\u0159id\u00e1na utilita pgpro_validate<\/a>, kter\u00e1 kontroluje integritu soubor\u016f, index\u016f, tabulek, syst\u00e9mov\u00fdch katalog\u016f a p\u0159\u00edstupov\u00fdch pr\u00e1v v instanci Postgres Pro.<\/p>\n

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Jeliko\u017e je Postgres Pro Enterprise 18.4.1 zalo\u017eeno na PostgreSQL 18.4<\/a>, zahrnoval tak\u00e9 opravy z upstreamu PostgreSQL. Pro aktualizaci v r\u00e1mci stejn\u00e9 hlavn\u00ed verze sta\u010d\u00ed nainstalovat nov\u00e9 vyd\u00e1n\u00ed do aktu\u00e1ln\u00edho adres\u00e1\u0159e, ale p\u0159i zm\u011bn\u011b ABI v\u00fdvoj\u00e1\u0159i doporu\u010duj\u00ed aktualizovat dodan\u00e9 roz\u0161\u00ed\u0159en\u00ed nebo znovu sestavit t\u0159et\u00ed strany.<\/p>\n

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Zdroj: linux.org.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

2 \u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Postgres Professional \u043e\u0431\u044a\u044f\u0432\u0438\u043b\u0430 \u043e \u0432\u044b\u043f\u0443\u0441\u043a\u0435 Postgres Pro Enterprise \u0434\u043b\u044f 1\u0421 18.4.1. \u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u043e\u0440\u0438\u0435\u043d\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u043e \u043d\u0430 \u043a\u0440\u0443\u043f\u043d\u044b\u0435 \u0438\u043d\u0441\u0442\u0430\u043b\u043b\u044f\u0446\u0438\u0438 \u00ab1\u0421\u00bb, \u0433\u0434\u0435 \u0431\u0430\u0437\u0430 \u0434\u0430\u043d\u043d\u044b\u0445 \u0440\u0435\u0433\u0443\u043b\u044f\u0440\u043d\u043e \u0441\u0442\u0430\u043b\u043a\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u0441\u043e \u0441\u043b\u043e\u0436\u043d\u044b\u043c\u0438 \u0437\u0430\u043f\u0440\u043e\u0441\u0430\u043c\u0438, \u043c\u043d\u043e\u0436\u0435\u0441\u0442\u0432\u043e\u043c \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0439, \u0432\u0440\u0435\u043c\u0435\u043d\u043d\u044b\u043c\u0438 \u0442\u0430\u0431\u043b\u0438\u0446\u0430\u043c\u0438, \u043e\u0442\u0447\u0451\u0442\u0430\u043c\u0438 \u0438 \u0440\u0435\u0433\u043b\u0430\u043c\u0435\u043d\u0442\u043d\u044b\u043c\u0438 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u044f\u043c\u0438. \u0412 \u043e\u0444\u0438\u0446\u0438\u0430\u043b\u044c\u043d\u044b\u0445 \u0437\u0430\u043c\u0435\u0447\u0430\u043d\u0438\u044f\u0445 \u043a \u0432\u044b\u043f\u0443\u0441\u043a\u0443 \u0443\u043a\u0430\u0437\u0430\u043d\u043e, \u0447\u0442\u043e \u043d\u043e\u0432\u0430\u044f \u0432\u0435\u0440\u0441\u0438\u044f \u043e\u0441\u043d\u043e\u0432\u0430\u043d\u0430 \u043d\u0430 PostgreSQL 18.4 \u0438 Postgres Pro Enterprise 18.3.2. \u041e\u0434\u043d\u043e \u0438\u0437 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