{"id":105303,"date":"2022-10-13T21:36:41","date_gmt":"2022-10-13T19:36:41","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/reliz-subd-postgresql-15"},"modified":"2022-10-13T21:36:41","modified_gmt":"2022-10-13T19:36:41","slug":"reliz-subd-postgresql-15","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pl\/blog\/news\/reliz-subd-postgresql-15","title":{"rendered":"Wydanie bazy danych PostgreSQL 15","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Po roku prac rozwoju opublikowano now\u0105 stabiln\u0105 wersj\u0119 bazy danych PostgreSQL 15. Aktualizacje dla nowej wersji b\u0119d\u0105 wydawane przez pi\u0119\u0107 lat do listopada 2027 roku.     <\/p>\n<p>G\u0142\u00f3wne nowo\u015bci:  <\/p>\n<ul>\n<li class=\"l\"> Dodano wsparcie dla polecenia SQL \u201eMERGE\u201d, przypominaj\u0105cego wyra\u017cenie \u201eINSERT \u2026 ON CONFLICT\u201d. MERGE umo\u017cliwia tworzenie warunkowych wyra\u017ce\u0144 SQL, \u0142\u0105cz\u0105cych w jednym wyra\u017ceniu operacje INSERT, UPDATE i DELETE. Na przyk\u0142ad, za pomoc\u0105 MERGE mo\u017cna zorganizowa\u0107 po\u0142\u0105czenie dw\u00f3ch tabel, wstawiaj\u0105c brakuj\u0105ce rekordy i aktualizuj\u0105c istniej\u0105ce.         MERGE INTO customer_account ca     USING recent_transactions t     ON t.customer_id = ca.customer_id     WHEN MATCHED THEN       UPDATE SET balance = balance + transaction_value     WHEN NOT MATCHED THEN       INSERT (customer_id, balance)       VALUES (t.customer_id, t.transaction_value);\n<li class=\"l\"> Znacz\u0105co poprawiono algorytmy sortowania danych w pami\u0119ci i na dysku. W zale\u017cno\u015bci od rodzaju danych w testach zauwa\u017cono wzrost pr\u0119dko\u015bci sortowania od 25% do 400%.\n<li class=\"l\"> Przyspieszono dzia\u0142anie funkcji okienkowych przy u\u017cyciu row_number(), rank(), dense_rank() oraz count().\n<li class=\"l\"> Wprowadzono mo\u017cliwo\u015b\u0107 r\u00f3wnoleg\u0142ego wykonywania zapyta\u0144 z wyra\u017ceniem \u201eSELECT DISTINCT\u201d.\n<li class=\"l\"> W mechanizmie pod\u0142\u0105czania zewn\u0119trznych tabel Foreign Data Wrapper (postgres_fdw) wprowadzono wsparcie dla asynchronicznych commit\u00f3w, opr\u00f3cz wcze\u015bniej dodanej mo\u017cliwo\u015bci asynchronicznego przetwarzania zapyta\u0144 do zewn\u0119trznych serwer\u00f3w.\n<li class=\"l\"> Dodano mo\u017cliwo\u015b\u0107 zastosowania algorytm\u00f3w LZ4 i Zstandard (zstd) do kompresji dziennik\u00f3w WAL transakcji, co przy niekt\u00f3rych obci\u0105\u017ceniach pozwala jednocze\u015bnie zwi\u0119kszy\u0107 wydajno\u015b\u0107 i zaoszcz\u0119dzi\u0107 przestrze\u0144 dyskow\u0105. W celu skr\u00f3cenia czasu przywracania po awarii dodano wsparcie dla wst\u0119pnego pobierania stron, pojawiaj\u0105cych si\u0119 w dzienniku WAL.\n<li class=\"l\"> Do narz\u0119dzia pg_basebackup dodano wsparcie dla kompresji plik\u00f3w z kopiami zapasowymi po stronie <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/pl\/server\/dts-los-angeles\/\"   title=\"serwera\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3862\">serwera<\/a>, wykorzystuj\u0105c metody gzip, LZ4 lub zstd. Zapewniono mo\u017cliwo\u015b\u0107 u\u017cycia w\u0142asnych modu\u0142\u00f3w do archiwizowania, co pozwala na obej\u015bcie konieczno\u015bci uruchamiania polece\u0144 pow\u0142oki.\n<li class=\"l\"> Dodano seri\u0119 nowych funkcji do przetwarzania ci\u0105g\u00f3w z u\u017cyciem wyra\u017ce\u0144 regularnych: regexp_count(), regexp_instr(), regexp_like() oraz regexp_substr().\n<li class=\"l\"> Do funkcji range_agg() dodano mo\u017cliwo\u015b\u0107 agregowania typ\u00f3w z wieloma zakresami (\u201emultirange\u201d).\n<li class=\"l\"> Dodano tryb security_invoker, umo\u017cliwiaj\u0105cy tworzenie widok\u00f3w, kt\u00f3re s\u0105 wykonywane z prawami u\u017cytkownika wywo\u0142uj\u0105cego, a nie tw\u00f3rcy widoku.\n<li class=\"l\"> W przypadku replikacji logicznej wprowadzono wsparcie dla filtrowania wierszy oraz definiowania list kolumn, co pozwala na wyodr\u0119bnienie cz\u0119\u015bci danych z tabeli do replikacji po stronie nadawcy. Ponadto, w nowej wersji uproszczono zarz\u0105dzanie konfliktami, na przyk\u0142ad wprowadzono mo\u017cliwo\u015b\u0107 pomijania konfliktuj\u0105cych transakcji oraz automatycznego wy\u0142\u0105czania subskrypcji w przypadku wykrycia b\u0142\u0119du. Przy replikacji logicznej dozwolone jest stosowanie dwuetapowych commit\u00f3w (2PC).\n<li class=\"l\"> Dodano nowy format log\u00f3w \u2014 jsonlog, zapisuj\u0105cy informacje w zorganizowanej formie, wykorzystuj\u0105c format JSON.\n<li class=\"l\"> Administrator otrzyma\u0142 mo\u017cliwo\u015b\u0107 delegowania u\u017cytkownikom okre\u015blonych uprawnie\u0144 do zmiany niekt\u00f3rych parametr\u00f3w. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/pl\/server\/\"   title=\"konfiguracji serwera\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"999\">konfiguracji serwera<\/a> PostgreSQL.\n<li class=\"l\"> Do narz\u0119dzia psql dodano wsparcie dla wyszukiwania informacji o ustawieniach (pg_settings) za pomoc\u0105 polecenia \u201edconfig\u201d.\n<li class=\"l\"> Zapewniono wykorzystanie pami\u0119ci dzielonej do gromadzenia statystyk o dzia\u0142aniu serwera, co pozwoli\u0142o na rezygnacj\u0119 z osobnego procesu zbierania statystyk oraz okresowego zapisywania stanu na dysku.\n<li class=\"l\">  Udost\u0119pniono mo\u017cliwo\u015b\u0107 korzystania z domy\u015blnych lokalizacji ICU \u201eICU Collation\u201d, wcze\u015bniej jako lokalizacj\u0119 domy\u015bln\u0105 mo\u017cna by\u0142o u\u017cywa\u0107 tylko lokalizacji libc.\n<li class=\"l\"> Wprowadzono wbudowane rozszerzenie pg_walinspect, umo\u017cliwiaj\u0105ce inspekcj\u0119 zawarto\u015bci plik\u00f3w z logami WAL za pomoc\u0105 zapyta\u0144 SQL.\n<li class=\"l\"> Dla schemy publicznej wszyscy u\u017cytkownicy, z wyj\u0105tkiem w\u0142a\u015bciciela bazy danych, otrzymali cofni\u0119cie uprawnie\u0144 do wykonywania polecenia CREATE.\n<li class=\"l\"> W PL\/Python usuni\u0119to wsparcie dla Pythona 2. Usuni\u0119to przestarza\u0142y ekskluzywny tryb tworzenia kopii zapasowych (\u201eexclusive backup\u201d).    <\/ul>\n<p>Uzupe\u0142nienie: Od 19:00 do 20:00 (MSK) odb\u0119dzie si\u0119 webinar na temat zmian w nowej wersji z Paw\u0142em Luzanowem (Postgres Professional). Dla tych, kt\u00f3rzy nie b\u0119d\u0105 mogli do\u0142\u0105czy\u0107 do transmisji na \u017cywo, dost\u0119pne jest nagranie czerwcowego wyst\u0105pienia Paw\u0142a \u201ePostgreSQL 15: MERGE i nie tylko\u201d na PGConf.Russia.<br \/>\n<br \/>\u0179r\u00f3d\u0142o: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=57914\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u043e\u0441\u043b\u0435 \u0433\u043e\u0434\u0430 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430 \u043d\u043e\u0432\u0430\u044f \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u0430\u044f \u0432\u0435\u0442\u043a\u0430 \u0421\u0423\u0411\u0414 PostgreSQL 15. \u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u0434\u043b\u044f \u043d\u043e\u0432\u043e\u0439 \u0432\u0435\u0442\u043a\u0438 \u0431\u0443\u0434\u0443\u0442 \u0432\u044b\u0445\u043e\u0434\u0438\u0442\u044c \u0432 \u0442\u0435\u0447\u0435\u043d\u0438\u0435 \u043f\u044f\u0442\u0438 \u043b\u0435\u0442 \u0434\u043e \u043d\u043e\u044f\u0431\u0440\u044f 2027 \u0433\u043e\u0434\u0430. \u041e\u0441\u043d\u043e\u0432\u043d\u044b\u0435 \u043d\u043e\u0432\u0448\u0435\u0441\u0442\u0432\u0430: \u0414\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0430 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 SQL-\u043a\u043e\u043c\u0430\u043d\u0434\u044b &#171;MERGE&#187;, \u043d\u0430\u043f\u043e\u043c\u0438\u043d\u0430\u044e\u0449\u0435\u0439 \u0432\u044b\u0440\u0430\u0436\u0435\u043d\u0438\u0435 &#171;INSERT &#8230; ON CONFLICT&#187;. MERGE \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0441\u043e\u0437\u0434\u0430\u0432\u0430\u0442\u044c \u0443\u0441\u043b\u043e\u0432\u043d\u044b\u0435 SQL-\u0432\u044b\u0440\u0430\u0436\u0435\u043d\u0438\u044f, \u043e\u0431\u044a\u0435\u0434\u0438\u043d\u044f\u044e\u0449\u0438\u0435 \u0432 \u043e\u0434\u043d\u043e\u043c \u0432\u044b\u0440\u0430\u0436\u0435\u043d\u0438\u0438 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0438 INSERT, UPDATE \u0438 DELETE. \u041d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u043f\u0440\u0438 \u043f\u043e\u043c\u043e\u0449\u0438 MERGE \u043c\u043e\u0436\u043d\u043e [&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-105303","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041f\u043e\u0441\u043b\u0435 \u0433\u043e\u0434\u0430 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430 \u043d\u043e\u0432\u0430\u044f \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u0430\u044f \u0432\u0435\u0442\u043a\u0430 \u0421\u0423\u0411\u0414 PostgreSQL 15. \u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u0434\u043b\u044f \u043d\u043e\u0432\u043e\u0439 \u0432\u0435\u0442\u043a\u0438 \u0431\u0443\u0434\u0443\u0442 \u0432\u044b\u0445\u043e\u0434\u0438\u0442\u044c \u0432 \u0442\u0435\u0447\u0435\u043d\u0438\u0435 \u043f\u044f\u0442\u0438 \u043b\u0435\u0442 \u0434\u043e \u043d\u043e\u044f\u0431\u0440\u044f 2027 \u0433\u043e\u0434\u0430.\" \/>\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\/pl\/blog\/news\/reliz-subd-postgresql-15\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.1.1\" \/>\n\t\t<meta property=\"og:locale\" content=\"pl_PL\" \/>\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\u0420\u0435\u043b\u0438\u0437 \u0421\u0423\u0411\u0414 PostgreSQL 15 | ProHoster\" \/>\n\t\t<meta property=\"og:description\" content=\"\u041f\u043e\u0441\u043b\u0435 \u0433\u043e\u0434\u0430 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430 \u043d\u043e\u0432\u0430\u044f \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u0430\u044f \u0432\u0435\u0442\u043a\u0430 \u0421\u0423\u0411\u0414 PostgreSQL 15. \u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u0434\u043b\u044f \u043d\u043e\u0432\u043e\u0439 \u0432\u0435\u0442\u043a\u0438 \u0431\u0443\u0434\u0443\u0442 \u0432\u044b\u0445\u043e\u0434\u0438\u0442\u044c \u0432 \u0442\u0435\u0447\u0435\u043d\u0438\u0435 \u043f\u044f\u0442\u0438 \u043b\u0435\u0442 \u0434\u043e \u043d\u043e\u044f\u0431\u0440\u044f 2027 \u0433\u043e\u0434\u0430.\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/prohoster.info\/pl\/blog\/news\/reliz-subd-postgresql-15\" \/>\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=\"2022-10-13T19:36:41+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2022-10-13T19:36:41+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\udd47Wydanie bazy danych PostgreSQL 15 | ProHoster","description":"Po roku prac opublikowano now\u0105 stabiln\u0105 ga\u0142\u0105\u017a bazy danych PostgreSQL 15. 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