{"id":116338,"date":"2024-06-04T21:39:58","date_gmt":"2024-06-04T19:39:58","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/pervyj-stabilnyj-reliz-subd-duckdb"},"modified":"2024-06-04T21:39:58","modified_gmt":"2024-06-04T19:39:58","slug":"pervyj-stabilnyj-reliz-subd-duckdb","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/news\/pervyj-stabilnyj-reliz-subd-duckdb","title":{"rendered":"Publikimi i par\u00eb stabil i SGBD DuckDB","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Pas gjasht\u00eb vitesh zhvillimi \u00ebsht\u00eb prezantuar versioni 1.0 i SGBD DuckDB, i pozicionuar si nj\u00eb variant i SQLite p\u00ebr pyetje analitike. DuckDB kombinon ve\u00e7ori t\u00eb SQLite, si kompakt\u00ebsia, mund\u00ebsia e integrimit si bibliotek\u00eb e ngulitur, ruajtja e baz\u00ebs s\u00eb t\u00eb dh\u00ebnave n\u00eb nj\u00eb skedar t\u00eb vet\u00ebm dhe nj\u00eb nd\u00ebrfaqe e p\u00ebrshtatshme CLI, me mjete dhe optimizime p\u00ebr ekzekutimin e pyetjeve analitike q\u00eb p\u00ebrfshijn\u00eb nj\u00eb pjes\u00eb t\u00eb konsiderueshme t\u00eb t\u00eb dh\u00ebnave t\u00eb ruajtura, p\u00ebr shembull agregimin e t\u00eb gjith\u00eb p\u00ebrmbajtjes s\u00eb tabelave ose bashkimin e disa tabelave t\u00eb m\u00ebdha. Kodi i projektit \u00ebsht\u00eb shkruar n\u00eb C++ dhe shp\u00ebrndahet n\u00ebn licenc\u00ebn MIT. <\/p>\n

Versioni 1.0 \u00ebsht\u00eb sh\u00ebnuar si publikimi i par\u00eb stabil i projektit; gjat\u00eb p\u00ebrgatitjes s\u00eb tij, v\u00ebmendja kryesore iu kushtua rritjes s\u00eb stabilitetit dhe jo zgjerimit t\u00eb funksionalitetit. N\u00eb versionin e ri \u00ebsht\u00eb fiksuar gjithashtu formati i ruajtjes s\u00eb t\u00eb dh\u00ebnave, p\u00ebr t\u00eb cilin q\u00eb nga publikimi i kaluar sigurohet p\u00ebrputhshm\u00ebri prapa. N\u00eb publikimet e ardhshme, zhvilluesit synojn\u00eb t\u00eb tregohen m\u00eb t\u00eb kujdessh\u00ebm me shtimin e funksioneve t\u00eb reja dhe t\u00eb kujdesen p\u00ebr ruajtjen e p\u00ebrputhshm\u00ebris\u00eb midis versioneve, si edhe p\u00ebr stabilizimin e dialektit SQL dhe C API. N\u00ebse n\u00eb t\u00eb ardhmen do t\u00eb nevojitet ndryshimi i semantik\u00ebs s\u00eb SQL, zhvilluesit do t\u00eb publikojn\u00eb paraprakisht nj\u00eb paralajm\u00ebrim p\u00ebr ndryshimet e ardhshme dhe do t\u00eb ofrojn\u00eb zgjidhje alternative p\u00ebr t\u00eb ruajtur funksionimin e kodit ekzistues. <\/p>\n

DuckDB mb\u00ebshtet nj\u00eb dialekt t\u00eb zgjeruar t\u00eb gjuh\u00ebs SQL, q\u00eb p\u00ebrfshin mund\u00ebsi shtes\u00eb p\u00ebr p\u00ebrpunimin e pyetjeve shum\u00eb komplekse dhe me ekzekutim t\u00eb gjat\u00eb. P\u00ebr shembull, \u00ebsht\u00eb i mundur p\u00ebrdorimi i tipeve komplekse (vargje, struktura, bashkime), si edhe ekzekutimi i n\u00ebnpyetjeve korreluese arbitrare dhe t\u00eb folezuara. Mb\u00ebshtetet ekzekutimi i nj\u00ebkohsh\u00ebm i disa pyetjeve, si edhe ekzekutimi i pyetjeve drejtp\u00ebrdrejt nga skedar\u00eb n\u00eb formatin CSV dhe Parquet. Ofrohet mb\u00ebshtetje p\u00ebr import nga SGBD PostgreSQL. <\/p>\n

P\u00ebrve\u00e7 kodit baz\u00eb nga SQLite, projekti p\u00ebrdor edhe nj\u00eb parser t\u00eb ve\u00e7uar n\u00eb nj\u00eb bibliotek\u00eb m\u00eb vete nga PostgreSQL, komponentin Date Math nga MonetDB, implementimin e vet t\u00eb funksioneve t\u00eb dritares (mbi baz\u00ebn e algoritmit Segment Tree Aggregation), nj\u00eb p\u00ebrpunues t\u00eb shprehjeve t\u00eb rregullta t\u00eb nd\u00ebrtuar mbi bibliotek\u00ebn RE2, optimizuesin e vet t\u00eb k\u00ebrkesave, mekanizmin MVCC p\u00ebr menaxhimin e ekzekutimit t\u00eb nj\u00ebkohsh\u00ebm t\u00eb detyrave (Multi-Version Concurrency Control), si dhe nj\u00eb engine t\u00eb vektorizuar p\u00ebr ekzekutimin e k\u00ebrkesave, i bazuar n\u00eb algoritmin Hyper-Pipelining Query Execution, q\u00eb mund\u00ebson p\u00ebrpunimin e menj\u00ebhersh\u00ebm t\u00eb grupeve t\u00eb m\u00ebdha t\u00eb vlerave brenda nj\u00eb operacioni t\u00eb vet\u00ebm.
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Burimi: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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