{"id":136040,"date":"2025-06-09T15:05:09","date_gmt":"2025-06-09T13:05:10","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/opublikovana-novaya-lts-vetka-subd-mariadb-11-8"},"modified":"2025-06-09T15:05:09","modified_gmt":"2025-06-09T13:05:10","slug":"opublikovana-novaya-lts-vetka-subd-mariadb-11-8","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/opublikovana-novaya-lts-vetka-subd-mariadb-11-8","title":{"rendered":"\u00c8 stata pubblicata una nuova branch LTS del DBMS MariaDB 11.8","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>\u00c8 stata presentata la versione del DBMS MariaDB 11.8.2, segnata come il primo rilascio stabile della branch 11.8. La branch MariaDB 11.8 \u00e8 classificata come release a lungo termine e sar\u00e0 supportata per almeno 5 anni. \u00c8 allo stesso tempo disponibile la versione MariaDB 12.0.1, che ha il status di release candidate.      <\/p>\n<p>Il progetto MariaDB sviluppa un fork di MySQL, mantenendo la compatibilit\u00e0 all'indietro e distinguendosi per l'integrazione di motori di archiviazione aggiuntivi e funzionalit\u00e0 avanzate. Lo sviluppo di MariaDB \u00e8 supervisionato dall'organizzazione indipendente MariaDB Foundation, secondo un processo di sviluppo aperto e trasparente, che non dipende da singoli fornitori. MariaDB \u00e8 fornito al posto di MySQL in molte distribuzioni Linux (RHEL, SUSE, Fedora, openSUSE, Slackware, OpenMandriva, ROSA, Arch Linux, Debian) ed \u00e8 implementato in grandi progetti come Wikipedia, Google Cloud SQL e Nimbuzz.       <\/p>\n<p>Tra le modifiche nella branch MariaDB 11.8 rispetto all'ultimo rilascio LTS 11.4:  <\/p>\n<ul>\n<li class=\"l\"> Sono stati integrati i progressi del progetto MariaDB Vector, che sviluppa funzionalit\u00e0 per la ricerca vettoriale, richiesta nei sistemi di apprendimento automatico. \u00c8 stata implementata la supporto integrato per il tipo di dato VECTOR, le funzioni VEC_DISTANCE_EUCLIDEAN(), VEC_DISTANCE_COSINE() e VEC_DISTANCE() per calcolare la similarit\u00e0 dei vettori, cos\u00ec come le funzioni VEC_FromText() e VEC_ToText() per la conversione tra la rappresentazione binaria e testuale dei vettori. Sono state implementate ottimizzazioni per il lavoro con i vettori, che utilizzano le estensioni SIMD delle CPU Intel (AVX2 e AVX512), ARM e IBM Power10. Nei test effettuati, le prestazioni delle query vettoriali in MariaDB superano quelle di Redis, pgvector, qdrant e weaviate.      <center><img decoding=\"async\" alt=\"\u00c8 stata pubblicata una nuova branch LTS del DBMS MariaDB 11.8 \" src=\"\/wp-content\/uploads\/2025\/06\/5dab0cbe2844dfeca0434c966be5ee52.png\" style=\"display:block;margin: 0 auto;\" \/><\/center>\n<li class=\"l\"> \u00c8 stato risolto il problema dell'anno 2038. Il limite massimo del tipo TIMESTAMP \u00e8 stato aumentato dall'anno 2038 all'anno 2106.\n<li class=\"l\"> Per impostazione predefinita, invece di latin1, \u00e8 impostata la codifica Unicode (utf8mb4) con pieno supporto per le emoji. Le propriet\u00e0 della locale \u201cCollation\u201d, che definiscono le regole di ordinamento e confronto tenendo conto del significato dei caratteri, sono state aggiornate alla versione UCA 14.0.0.\n<li class=\"l\"> \u00c8 stato aggiunto un nuovo plugin di autenticazione delle password PARSEC (Password Authentication with Response Signed by Elliptic Curves), che utilizza la funzione PBKDF2 per generare l'hash della password e verifica le risposte utilizzando una chiave pubblica basata sullo schema di firme digitali ed25519.\n<li class=\"l\"> \u00c8 stata migliorata l'autenticazione per l'accesso al DBMS da un sistema locale, utilizzando un socket UNIX.\n<li class=\"l\"> Nel mariadb-dump e mariadb-import \u00e8 stata aggiunta la supporto per la creazione e il ripristino di backup multi-thread. La parallelizzazione \u00e8 applicata sia durante il dump di un grande DB che nel backup simultaneo di pi\u00f9 DB.\n<li class=\"l\"> Le prestazioni della replica sono state notevolmente migliorate. Per accelerare l'accettazione di transazioni molto grandi \u00e8 stato implementato un meccanismo di commutazione dei segmenti del log binario (binlog), che consente di evitare operazioni dispendiose di copia dei file. Per ridurre i riavvii dopo i guasti, \u00e8 garantito il rollback delle transazioni in modalit\u00e0 asincrona. \u00c8 stata aggiunta l'impostazione \u201cslave_replication_delay_abort_timeout\u201d, che consente di annullare automaticamente le transazioni che bloccano la replica per troppo tempo.\n<li class=\"l\"> Gli strumenti di monitoraggio sono stati ampliati. Nelle tabelle statistiche sono state aggiunte colonne aggiuntive per l'analisi delle prestazioni e la diagnosi dei problemi.\n<li class=\"l\"> \u00c8 stata aggiunta la tabella USERS con informazioni sugli utenti, le restrizioni applicate a loro e la durata delle loro password.\n<li class=\"l\"> Sono stati aggiunti i comandi \u201cFLUSH GLOBAL STATUS\u201d, \u201cREPAIR TABLE \u2026 FORCE\u201d e \u201cSHOW CREATE SERVER\u201d.\n<li class=\"l\"> \u00c8 stata aggiunta la possibilit\u00e0 di restituire valori di tipo ROW dalle procedure memorizzate.\n<li class=\"l\"> \u00c8 stata migliorata la compatibilit\u00e0 con il DBMS Oracle durante l'utilizzo delle sequenze (sequence). L'operazione \u201cCREATE SEQUENCE \u2026 AS\u201d pu\u00f2 ora essere utilizzata con qualsiasi tipo intero, inclusi \u201cBIGINT UNSIGNED\u201d.\n<li class=\"l\"> Sono state aggiunte nuove funzioni per la generazione di UUID \u2014 UUID_v7 e UUID_v4.\n<li class=\"l\"> \u00c8 stata aggiunta la funzione FORMAT_BYTES per convertire un numero di byte in un formato leggibile (ad esempio, FORMAT_BYTES(1000000000) restituir\u00e0 953,67 MiB).\n<li class=\"l\"> \u00c8 stata aggiunta la possibilit\u00e0 di limitare lo spazio su disco utilizzato per i file temporanei e le tabelle temporanee. Sono state aggiunte le impostazioni max_tmp_session_space_usage e max_tmp_total_space_usage per impostare limiti, in riferimento a un utente e a tutti gli utenti.\n<li class=\"l\"> Nell'ottimizzatore delle query \u00e8 stata accelerata l'elaborazione delle operazioni UPDATE\/DELETE su una sola tabella. Sono state abilitate per impostazione predefinita ottimizzazioni per ridurre le codifiche a un sottoinsieme minore di caratteri. Sono state accelerate le query con espressioni \u201cSUBSTR(col, 1, n) = const_str\u201d. \u00c8 stata aggiunta la supporto per l'ottimizzazione delle colonne virtuali.          <\/ul>\n<p>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=63378\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u0421\u0423\u0411\u0414 MariaDB 11.8.2, \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 11.8. \u0412\u0435\u0442\u043a\u0430 MariaDB 11.8 \u043e\u0442\u043d\u0435\u0441\u0435\u043d\u0430 \u043a \u0432\u044b\u043f\u0443\u0441\u043a\u0430\u043c \u0441 \u0434\u043b\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u043c \u0441\u0440\u043e\u043a\u043e\u043c \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 \u0438 \u0431\u0443\u0434\u0435\u0442 \u0441\u043e\u043f\u0440\u043e\u0432\u043e\u0436\u0434\u0430\u0442\u044c\u0441\u044f \u043a\u0430\u043a \u043c\u0438\u043d\u0438\u043c\u0443\u043c 5 \u043b\u0435\u0442. \u041e\u0434\u043d\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u043e \u0434\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u0432\u044b\u043f\u0443\u0441\u043a MariaDB 12.0.1, \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. \u041f\u0440\u043e\u0435\u043a\u0442\u043e\u043c MariaDB \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u043e\u0442\u0432\u0435\u0442\u0432\u043b\u0435\u043d\u0438\u0435 \u043e\u0442 MySQL, \u0441\u043e\u0445\u0440\u0430\u043d\u044f\u044e\u0449\u0435\u0435 \u043e\u0431\u0440\u0430\u0442\u043d\u0443\u044e \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u0438\u043c\u043e\u0441\u0442\u044c \u0438 \u043e\u0442\u043b\u0438\u0447\u0430\u044e\u0449\u0435\u0435\u0441\u044f \u0438\u043d\u0442\u0435\u0433\u0440\u0430\u0446\u0438\u0435\u0439 \u0434\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0445 \u0434\u0432\u0438\u0436\u043a\u043e\u0432 \u0445\u0440\u0430\u043d\u0435\u043d\u0438\u044f [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":136041,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-136040","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - 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