{"id":18241,"date":"2025-04-15T20:30:15","date_gmt":"2025-04-15T17:30:15","guid":{"rendered":"https:\/\/fatihsoysal.com\/blog\/ef-core-ve-postgresqlde-paralel-sorgular-neden-basarisiz-olur-ve-nasil-cozulur\/"},"modified":"2025-04-15T20:30:15","modified_gmt":"2025-04-15T17:30:15","slug":"ef-core-ve-postgresqlde-paralel-sorgular-neden-basarisiz-olur-ve-nasil-cozulur","status":"publish","type":"post","link":"https:\/\/fatihsoysal.com\/blog\/ef-core-ve-postgresqlde-paralel-sorgular-neden-basarisiz-olur-ve-nasil-cozulur\/","title":{"rendered":"EF Core ve PostgreSQL&#8217;de Paralel Sorgular: Neden Ba\u015far\u0131s\u0131z Olur ve Nas\u0131l \u00c7\u00f6z\u00fcl\u00fcr?"},"content":{"rendered":"<p><body><\/p>\n<p>EF Core ve PostgreSQL&#8217;de Paralel Sorgular: Neden Ba\u015far\u0131s\u0131z Olur ve Nas\u0131l \u00c7\u00f6z\u00fcl\u00fcr?<\/p>\n<p>Entity Framework Core (EF Core), .NET geli\u015ftiricileri i\u00e7in pop\u00fcler bir ORM (Object-Relational Mapper) arac\u0131d\u0131r.  Ancak,  PostgreSQL gibi g\u00fc\u00e7l\u00fc veritabanlar\u0131yla birlikte paralel sorgular \u00e7al\u0131\u015ft\u0131r\u0131rken baz\u0131 zorluklarla kar\u015f\u0131la\u015fabilirsiniz.  Bu makalede,  EF Core ve PostgreSQL&#8217;de paralel sorgular\u0131n neden ba\u015far\u0131s\u0131z olabilece\u011fini ve bu sorunlar\u0131 nas\u0131l \u00e7\u00f6zebilece\u011finizi detayl\u0131 olarak ele alaca\u011f\u0131z.  \u00d6ncelikle sorunun kayna\u011f\u0131n\u0131 anlamak \u00f6nemlidir.<\/p>\n<h2>Paralel Sorgular\u0131n Zorluklar\u0131<\/h2>\n<p>EF Core, varsay\u0131lan olarak tek bir ba\u011flant\u0131 \u00fczerinden sorgular\u0131 y\u00fcr\u00fct\u00fcr.  Bu,  b\u00fcy\u00fck veri k\u00fcmeleriyle \u00e7al\u0131\u015f\u0131rken performans sorunlar\u0131na yol a\u00e7abilir.  Paralel sorgular,  birden fazla i\u015flemcinin ayn\u0131 anda \u00e7al\u0131\u015fmas\u0131n\u0131 sa\u011flayarak sorgu s\u00fcresini \u00f6nemli \u00f6l\u00e7\u00fcde k\u0131salt\u0131r. Ancak, PostgreSQL ile EF Core&#8217;u kullan\u0131rken, paralel sorgular\u0131n beklendi\u011fi gibi \u00e7al\u0131\u015fmas\u0131n\u0131 sa\u011flamak i\u00e7in baz\u0131 noktalara dikkat etmek gerekir.  Ba\u015far\u0131s\u0131zl\u0131\u011f\u0131n en yayg\u0131n nedenlerinden biri,  EF Core&#8217;un PostgreSQL&#8217;in paralel sorgu yeteneklerini tam olarak kullanamamas\u0131d\u0131r.<\/p>\n<p>Ayr\u0131ca,  yanl\u0131\u015f yap\u0131land\u0131r\u0131lm\u0131\u015f sorgular veya veritaban\u0131 indekslerinin eksikli\u011fi de paralel sorgular\u0131n verimsiz \u00e7al\u0131\u015fmas\u0131na veya tamamen ba\u015far\u0131s\u0131z olmas\u0131na neden olabilir.  \u00d6rne\u011fin,  bir tablo \u00fczerinde do\u011fru indeksler yoksa, veritaban\u0131 paralel sorguyu kullanmak yerine, tek bir i\u015flemciyle \u00e7al\u0131\u015fmak zorunda kalacakt\u0131r.  Sonu\u00e7 olarak, beklenen performans art\u0131\u015f\u0131 sa\u011flanamayacakt\u0131r.  Bu gibi durumlarda,  sorgu optimizasyonuna odaklanmak \u00f6nemlidir.<\/p>\n<h2>\u00c7\u00f6z\u00fcm Yollar\u0131<\/h2>\n<p>\u00d6ncelikle,  PostgreSQL sunucunuzun paralel sorgu \u00f6zelli\u011finin etkinle\u015ftirildi\u011finden emin olmal\u0131s\u0131n\u0131z.  Bu,  PostgreSQL ayarlar\u0131nda kontrol edilebilir.  Ard\u0131ndan,  EF Core sorgular\u0131n\u0131z\u0131 optimize etmelisiniz.  \u00d6rne\u011fin,  gereksiz JOIN i\u015flemlerinden ka\u00e7\u0131nmal\u0131 ve uygun indeksleri olu\u015fturmal\u0131s\u0131n\u0131z.  Veritaban\u0131 indeksleri, veritaban\u0131 sorgular\u0131n\u0131n h\u0131z\u0131n\u0131 art\u0131rmak i\u00e7in kullan\u0131lan \u00f6nemli bir optimizasyon y\u00f6ntemidir.  Do\u011fru indeksleri kullanarak sorgular\u0131n\u0131z\u0131 \u00f6nemli \u00f6l\u00e7\u00fcde h\u0131zland\u0131rabilirsiniz.<\/p>\n<p>Baz\u0131 durumlarda,  veritaban\u0131 taraf\u0131nda paralel sorgular\u0131 zorlamak gerekebilir.  Bunun i\u00e7in,  SQL sorgular\u0131n\u0131z\u0131 do\u011frudan EF Core&#8217;a iletebilirsiniz.  \u00d6rne\u011fin,  <code>FromSqlRaw<\/code> metodunu kullanarak,  PostgreSQL&#8217;in paralel sorgu \u00f6zelliklerinden yararlanacak \u015fekilde SQL sorgular\u0131n\u0131z\u0131 yazabilirsiniz.  Ancak,  bu yakla\u015f\u0131m,  EF Core&#8217;un veri b\u00fct\u00fcnl\u00fc\u011f\u00fcn\u00fc ve modelinizi do\u011fru bir \u015fekilde y\u00f6netme yetene\u011fini azaltabilece\u011finden, dikkatli kullan\u0131lmal\u0131d\u0131r.<\/p>\n<p>Bir di\u011fer \u00e7\u00f6z\u00fcm yolu ise,  verileri daha k\u00fc\u00e7\u00fck par\u00e7alara b\u00f6lerek i\u015flemektir.  B\u00fcy\u00fck veri k\u00fcmelerini daha k\u00fc\u00e7\u00fck par\u00e7alara b\u00f6lerek,  EF Core&#8217;un her par\u00e7ay\u0131 ba\u011f\u0131ms\u0131z olarak i\u015fleyebilmesini sa\u011flayabilirsiniz. Bu y\u00f6ntem, paralel i\u015flemleri kolayla\u015ft\u0131r\u0131r. Bununla birlikte, bu par\u00e7alama i\u015flemini do\u011fru bir \u015fekilde y\u00f6netmek \u00f6nemlidir, aksi takdirde performans art\u0131\u015f\u0131 yerine d\u00fc\u015f\u00fc\u015f ya\u015fayabilirsiniz.<\/p>\n<h2>\u00d6rnek Kod (C#)<\/h2>\n<pre><code>\n\/\/ \u00d6rnek: FromSqlRaw kullanarak paralel sorgu \u00e7al\u0131\u015ft\u0131rma (Dikkatli kullan\u0131n!)\nvar results = _context.MyEntities.FromSqlRaw(\"SELECT * FROM my_table WHERE condition ORDER BY id\").ToList();\n<\/code><\/pre>\n<p>Bu \u00f6rnekte,  <code>FromSqlRaw<\/code> metodu ile do\u011frudan bir SQL sorgusu \u00e7al\u0131\u015ft\u0131r\u0131l\u0131yor.  Bu sorguyu optimize ederek ve paralel sorguyu destekleyecek \u015fekilde yazarsan\u0131z,  performans art\u0131\u015f\u0131 sa\u011flayabilirsiniz. Ancak,  bu y\u00f6ntemi kullan\u0131rken SQL enjeksiyonuna kar\u015f\u0131 dikkatli olman\u0131z ve sorgular\u0131n\u0131z\u0131 do\u011fru bir \u015fekilde yazman\u0131z son derece \u00f6nemlidir. Yanl\u0131\u015f yaz\u0131lm\u0131\u015f sorgular ciddi g\u00fcvenlik a\u00e7\u0131klar\u0131na neden olabilir.<\/p>\n<p>Sonu\u00e7 olarak, EF Core ve PostgreSQL&#8217;de paralel sorgular\u0131 etkili bir \u015fekilde kullanmak,  sorgular\u0131n ve veritaban\u0131 yap\u0131s\u0131n\u0131n dikkatlice optimize edilmesini gerektirir.  Do\u011fru indekslerin kullan\u0131lmas\u0131,  sorgular\u0131n uygun \u015fekilde yaz\u0131lmas\u0131 ve gerekti\u011finde <code>FromSqlRaw<\/code> gibi y\u00f6ntemlerin bilin\u00e7li kullan\u0131m\u0131,  \u00f6nemli performans iyile\u015ftirmeleri sa\u011flayabilir. Ancak, her zaman karma\u015f\u0131kl\u0131\u011f\u0131 art\u0131raca\u011f\u0131ndan, gereksiz yere bu tekniklere ba\u015fvurmak yerine, daha basit \u00e7\u00f6z\u00fcmler \u00f6nceliklendirilmelidir.<\/p>\n<p>Daha fazla bilgi i\u00e7in <a href=\"https:\/\/dev.to\/juliashevchenko\/parallel-queries-in-ef-core-with-postgresql-why-it-fails-and-how-to-fix-it-4648\">bu kayna\u011f\u0131<\/a> inceleyebilirsiniz.  Kendi web sitemde daha fazla .NET ve veritaban\u0131 optimizasyonu hakk\u0131ndaki makalelere <a href=\"https:\/\/fatihsoysal.com\">buradan<\/a> ula\u015fabilirsiniz.<\/p>\n<h3>#Etiketler<\/h3>\n<p>EF Core, PostgreSQL, Paralel Sorgular, Performans, Veritaban\u0131, Entity Framework, \u00c7\u00f6z\u00fcm, Hata Ay\u0131klama, Optimizasyon, FromSqlRaw, SQL, \u0130ndeksler<br \/>\n<\/body><br \/>\n<\/html><\/p>\n","protected":false},"excerpt":{"rendered":"EF Core ve PostgreSQL&#8217;de Paralel Sorgular: Neden Ba\u015far\u0131s\u0131z Olur ve Nas\u0131l \u00c7\u00f6z\u00fcl\u00fcr? Entity Framework Core (EF Core), .NET&hellip;","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"csco_page_header_type":"","csco_page_load_nextpost":"","csco_page_subscribe_form":"","csco_page_contact_form":"","footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-18241","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-genel","7":"cs-entry","8":"cs-video-wrap"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v20.5 (Yoast SEO v25.3.1) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>EF Core ve PostgreSQL&#039;de Paralel Sorgular: Neden Ba\u015far\u0131s\u0131z Olur ve Nas\u0131l \u00c7\u00f6z\u00fcl\u00fcr?<\/title>\n<meta name=\"description\" content=\"Entity Framework Core (EF Core), .NET geli\u015ftiricileri i\u00e7in pop\u00fcler bir ORM (Object-Relational Mapper) arac\u0131d\u0131r. 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Bu makalede, EF Core ve PostgreSQL&#039;de paralel sorgular\u0131n neden ba\u015far\u0131s\u0131z olabilece\u011fini ve bu sorunlar\u0131 nas\u0131l \u00e7\u00f6zebilece\u011finizi detayl\u0131 olarak ele alaca\u011f\u0131z. \u00d6ncelikle sorunun kayna\u011f\u0131n\u0131 anlamak \u00f6nemlidir.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/fatihsoysal.com\/blog\/ef-core-ve-postgresqlde-paralel-sorgular-neden-basarisiz-olur-ve-nasil-cozulur\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"EF Core ve PostgreSQL&#039;de Paralel Sorgular: Neden Ba\u015far\u0131s\u0131z Olur ve Nas\u0131l \u00c7\u00f6z\u00fcl\u00fcr?\" \/>\n<meta property=\"og:description\" content=\"Entity Framework Core (EF Core), .NET geli\u015ftiricileri i\u00e7in pop\u00fcler bir ORM (Object-Relational Mapper) arac\u0131d\u0131r. Ancak, PostgreSQL gibi g\u00fc\u00e7l\u00fc veritabanlar\u0131yla birlikte paralel sorgular \u00e7al\u0131\u015ft\u0131r\u0131rken baz\u0131 zorluklarla kar\u015f\u0131la\u015fabilirsiniz. Bu makalede, EF Core ve PostgreSQL&#039;de paralel sorgular\u0131n neden ba\u015far\u0131s\u0131z olabilece\u011fini ve bu sorunlar\u0131 nas\u0131l \u00e7\u00f6zebilece\u011finizi detayl\u0131 olarak ele alaca\u011f\u0131z. \u00d6ncelikle sorunun kayna\u011f\u0131n\u0131 anlamak \u00f6nemlidir.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/fatihsoysal.com\/blog\/ef-core-ve-postgresqlde-paralel-sorgular-neden-basarisiz-olur-ve-nasil-cozulur\/\" \/>\n<meta property=\"og:site_name\" content=\"Kodlar\u0131n Gizemli D\u00fcnyas\u0131\" \/>\n<meta property=\"article:published_time\" content=\"2025-04-15T17:30:15+00:00\" \/>\n<meta name=\"author\" content=\"Fatih Soysal\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Yazan:\" \/>\n\t<meta name=\"twitter:data1\" content=\"Fatih Soysal\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tahmini okuma s\u00fcresi\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 dakika\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/ef-core-ve-postgresqlde-paralel-sorgular-neden-basarisiz-olur-ve-nasil-cozulur\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/ef-core-ve-postgresqlde-paralel-sorgular-neden-basarisiz-olur-ve-nasil-cozulur\/\"},\"author\":{\"name\":\"Fatih Soysal\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1\"},\"headline\":\"EF Core ve PostgreSQL&#8217;de Paralel Sorgular: Neden Ba\u015far\u0131s\u0131z Olur ve Nas\u0131l \u00c7\u00f6z\u00fcl\u00fcr?\",\"datePublished\":\"2025-04-15T17:30:15+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/ef-core-ve-postgresqlde-paralel-sorgular-neden-basarisiz-olur-ve-nasil-cozulur\/\"},\"wordCount\":693,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1\"},\"inLanguage\":\"tr\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/fatihsoysal.com\/blog\/ef-core-ve-postgresqlde-paralel-sorgular-neden-basarisiz-olur-ve-nasil-cozulur\/#respond\"]}],\"copyrightYear\":\"2025\",\"copyrightHolder\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#organization\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/ef-core-ve-postgresqlde-paralel-sorgular-neden-basarisiz-olur-ve-nasil-cozulur\/\",\"url\":\"https:\/\/fatihsoysal.com\/blog\/ef-core-ve-postgresqlde-paralel-sorgular-neden-basarisiz-olur-ve-nasil-cozulur\/\",\"name\":\"EF Core ve PostgreSQL'de Paralel Sorgular: Neden Ba\u015far\u0131s\u0131z Olur ve Nas\u0131l \u00c7\u00f6z\u00fcl\u00fcr?\",\"isPartOf\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#website\"},\"datePublished\":\"2025-04-15T17:30:15+00:00\",\"description\":\"Entity Framework Core (EF Core), .NET geli\u015ftiricileri i\u00e7in pop\u00fcler bir ORM (Object-Relational Mapper) arac\u0131d\u0131r. 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