{"id":41552,"date":"2026-05-02T21:01:36","date_gmt":"2026-05-02T18:01:36","guid":{"rendered":"https:\/\/fatihsoysal.com\/blog\/clickhouse-replacingmergetree-satir-sayiniz-neden-tutarsiz-cikiyor\/"},"modified":"2026-05-02T21:01:36","modified_gmt":"2026-05-02T18:01:36","slug":"clickhouse-replacingmergetree-satir-sayiniz-neden-tutarsiz-cikiyor","status":"publish","type":"post","link":"https:\/\/fatihsoysal.com\/blog\/clickhouse-replacingmergetree-satir-sayiniz-neden-tutarsiz-cikiyor\/","title":{"rendered":"ClickHouse ReplacingMergeTree: Sat\u0131r Say\u0131n\u0131z Neden Tutars\u0131z \u00c7\u0131k\u0131yor?"},"content":{"rendered":"

ClickHouse ReplacingMergeTree: Sat\u0131r Say\u0131n\u0131z Neden Tutars\u0131z \u00c7\u0131k\u0131yor?<\/h2>\n

Veritaban\u0131 y\u00f6neticileri ve analistler i\u00e7in, bir tablodaki sat\u0131r say\u0131s\u0131n\u0131n beklentileriyle uyu\u015fmamas\u0131, \u00f6zellikle de kritik raporlar s\u00f6z konusu oldu\u011funda, kafa kar\u0131\u015ft\u0131r\u0131c\u0131 bir durum olabilir. ClickHouse’un g\u00fc\u00e7l\u00fc ve performans odakl\u0131 MergeTree ailesi motorlar\u0131ndan biri olan ReplacingMergeTree<\/code>‘yi kullan\u0131yorsan\u0131z, bu durumla kar\u015f\u0131la\u015fman\u0131z olduk\u00e7a olas\u0131d\u0131r. Bu makalede, ReplacingMergeTree<\/code> motorunun ne oldu\u011funu, nas\u0131l \u00e7al\u0131\u015ft\u0131\u011f\u0131n\u0131 ve neden sat\u0131r say\u0131n\u0131z\u0131n zaman zaman “yanl\u0131\u015f” g\u00f6r\u00fcnebilece\u011fini derinlemesine inceleyece\u011fiz. Amac\u0131m\u0131z, bu motorun arkas\u0131ndaki mekani\u011fi anlayarak, veri tutars\u0131zl\u0131\u011f\u0131 gibi g\u00f6r\u00fcnen bu durumun asl\u0131nda beklenen bir davran\u0131\u015f oldu\u011funu ve do\u011fru sorgulama y\u00f6ntemleriyle her zaman do\u011fru sonu\u00e7lara ula\u015fabilece\u011finizi g\u00f6stermektir.<\/p>\n

ClickHouse ve MergeTree Ailesine H\u0131zl\u0131 Bir Bak\u0131\u015f: Neden Bu Kadar Pop\u00fcler?<\/h3>\n

ClickHouse, b\u00fcy\u00fck veri k\u00fcmeleri \u00fczerinde analitik sorgular\u0131 ola\u011fan\u00fcst\u00fc h\u0131zda \u00e7al\u0131\u015ft\u0131rmak \u00fczere tasarlanm\u0131\u015f, s\u00fctun tabanl\u0131 (columnar) bir OLAP (Online Analytical Processing) veritaban\u0131d\u0131r. Geleneksel sat\u0131r tabanl\u0131 (row-oriented) veritabanlar\u0131n\u0131n aksine, ClickHouse verileri s\u00fctunlar halinde depolar. Bu yakla\u015f\u0131m, analitik sorgularda genellikle sadece belirli s\u00fctunlara ihtiya\u00e7 duyuldu\u011fu i\u00e7in, disk I\/O’sunu (giri\u015f\/\u00e7\u0131k\u0131\u015f) minimize ederek sorgu performans\u0131n\u0131 dramatik bir \u015fekilde art\u0131r\u0131r. \u00d6rne\u011fin, sadece bir kullan\u0131c\u0131n\u0131n ya\u015f ortalamas\u0131n\u0131 hesaplamak istedi\u011finizde, t\u00fcm kullan\u0131c\u0131 bilgilerini i\u00e7eren sat\u0131rlar\u0131 okumak yerine, sadece “ya\u015f” s\u00fctununu okumak \u00e7ok daha verimlidir.<\/p>\n

ClickHouse’un kalbinde, verilerin nas\u0131l depoland\u0131\u011f\u0131n\u0131 ve i\u015flendi\u011fini belirleyen bir dizi depolama motoru bulunur. Bu motorlar aras\u0131nda en yayg\u0131n ve g\u00fc\u00e7l\u00fc olan\u0131 MergeTree ailesidir. MergeTree motorlar\u0131, verileri disk \u00fczerinde “veri par\u00e7alar\u0131” (data parts) ad\u0131 verilen k\u00fc\u00e7\u00fck, s\u0131ral\u0131 bloklar halinde saklar. Yeni veriler eklendik\u00e7e, yeni veri par\u00e7alar\u0131 olu\u015fturulur. Arka planda \u00e7al\u0131\u015fan birle\u015ftirme (merge) i\u015flemleri, bu k\u00fc\u00e7\u00fck par\u00e7alar\u0131 daha b\u00fcy\u00fck, optimize edilmi\u015f par\u00e7alar halinde birle\u015ftirir. Bu birle\u015ftirme s\u00fcreci, sorgu performans\u0131n\u0131 art\u0131rman\u0131n yan\u0131 s\u0131ra, veri s\u0131k\u0131\u015ft\u0131rmay\u0131 optimize eder ve baz\u0131 MergeTree t\u00fcrevlerinde veri tekille\u015ftirme (deduplication) gibi \u00f6zel i\u015flevleri yerine getirir. \u00d6rne\u011fin, bir e-ticaret sitesinde her \u00fcr\u00fcn g\u00f6r\u00fcnt\u00fclemesini kaydediyorsan\u0131z, her g\u00f6r\u00fcnt\u00fcleme yeni bir veri par\u00e7as\u0131 olarak yaz\u0131labilir, ancak arka planda bu par\u00e7alar daha b\u00fcy\u00fck dosyalarda birle\u015ftirilerek disk alan\u0131 daha verimli kullan\u0131labilir. Bu esnek mimari sayesinde, ClickHouse farkl\u0131 kullan\u0131m senaryolar\u0131na \u00f6zel olarak optimize edilmi\u015f motorlar sunar ve veri ambar\u0131, analitik platformlar, ger\u00e7ek zamanl\u0131 izleme sistemleri gibi bir\u00e7ok alanda tercih edilen bir \u00e7\u00f6z\u00fcm haline gelmi\u015ftir. MergeTree motorlar\u0131n\u0131n bu yap\u0131sal avantajlar\u0131, ClickHouse’un b\u00fcy\u00fck \u00f6l\u00e7ekli veri analizi d\u00fcnyas\u0131ndaki ba\u015far\u0131s\u0131n\u0131n temelini olu\u015fturur.<\/p>\n

ReplacingMergeTree Motoru Nedir ve Nas\u0131l \u00c7al\u0131\u015f\u0131r?<\/h3>\n

ReplacingMergeTree<\/code> motoru, MergeTree ailesinin \u00f6nemli bir \u00fcyesidir ve ad\u0131ndan da anla\u015f\u0131laca\u011f\u0131 gibi, belirli kriterlere g\u00f6re eski sat\u0131rlar\u0131 yenileriyle “de\u011fi\u015ftirme” (replace) yetene\u011fine sahiptir. Temel amac\u0131, birincil anahtar (primary key) baz\u0131nda veri tekille\u015ftirmeyi sa\u011flamakt\u0131r. Yani, ayn\u0131 birincil anahtara sahip birden fazla sat\u0131r eklendi\u011finde, ReplacingMergeTree<\/code> bu sat\u0131rlardan yaln\u0131zca birini (genellikle en g\u00fcncel olan\u0131) saklayarak veritaban\u0131n\u0131zda yinelenen kay\u0131tlar\u0131n olu\u015fmas\u0131n\u0131 engeller. Bu \u00f6zellik, \u00f6zellikle g\u00fcncellenen verilerin s\u0131k\u00e7a geldi\u011fi ve her zaman en son durumu g\u00f6rmek istedi\u011finiz senaryolarda kritik \u00f6neme sahiptir. \u00d6rne\u011fin, bir IoT cihaz\u0131ndan gelen sens\u00f6r verilerini d\u00fc\u015f\u00fcn\u00fcn; her saniye ayn\u0131 cihazdan yeni bir s\u0131cakl\u0131k okumas\u0131 gelebilir. E\u011fer her okumay\u0131 ayr\u0131 bir sat\u0131r olarak saklarsan\u0131z, veritaban\u0131n\u0131z h\u0131zla \u015fi\u015fer. ReplacingMergeTree<\/code> ile sadece o cihaz\u0131n en son s\u0131cakl\u0131k de\u011ferini tutabilirsiniz.<\/p>\n

Peki, bu tekille\u015ftirme i\u015flemi tam olarak nas\u0131l ger\u00e7ekle\u015fir? ReplacingMergeTree<\/code> motoru, ORDER BY<\/code> ifadesinde belirtilen s\u00fctunlar\u0131 birincil anahtar olarak kullan\u0131r. E\u011fer ayn\u0131 birincil anahtara sahip birden fazla sat\u0131r gelirse, motor bu sat\u0131rlar\u0131 birle\u015ftirme (merge) i\u015flemi s\u0131ras\u0131nda tekille\u015ftirir. Tekille\u015ftirme mant\u0131\u011f\u0131 genellikle en b\u00fcy\u00fck _version<\/code> de\u011ferine sahip sat\u0131r\u0131 saklamak \u00fczerine kuruludur. E\u011fer bir _version<\/code> s\u00fctunu belirtilmemi\u015fse, varsay\u0131lan olarak en son eklenen (veya birle\u015ftirme s\u0131ras\u0131nda kar\u015f\u0131la\u015f\u0131lan son) sat\u0131r saklan\u0131r. Bu, veritaban\u0131na gelen verinin s\u0131ras\u0131na ve birle\u015ftirme i\u015fleminin zamanlamas\u0131na ba\u011fl\u0131 olarak de\u011fi\u015febilir. Birle\u015ftirme i\u015flemleri, ClickHouse’un arka plan s\u00fcre\u00e7leri taraf\u0131ndan otomatik ve asenkron (e\u015fzamans\u0131z) olarak y\u00fcr\u00fct\u00fcl\u00fcr. Bu, yeni veriler eklendi\u011finde hemen tekille\u015ftirilmedikleri anlam\u0131na gelir; tekille\u015ftirme, ancak ilgili veri par\u00e7alar\u0131 birle\u015ftirildi\u011finde ger\u00e7ekle\u015fir. Bu asenkron do\u011fa, ReplacingMergeTree<\/code>‘nin temel \u00e7al\u0131\u015fma prensibini olu\u015fturur ve sat\u0131r say\u0131s\u0131ndaki tutars\u0131zl\u0131klar\u0131n ana nedenidir. Motoru tan\u0131mlarken, iste\u011fe ba\u011fl\u0131 olarak bir version<\/code> s\u00fctunu ve\/veya bir is_deleted<\/code> s\u00fctunu belirtebilirsiniz. version<\/code> s\u00fctunu, ayn\u0131 birincil anahtara sahip sat\u0131rlar aras\u0131nda hangisinin “en g\u00fcncel” oldu\u011funu belirlemek i\u00e7in kullan\u0131l\u0131r. Daha y\u00fcksek version<\/code> de\u011feri, daha yeni bir kayd\u0131 temsil eder. is_deleted<\/code> s\u00fctunu ise, belirli kay\u0131tlar\u0131n silinmesi gerekti\u011fini i\u015faretlemek i\u00e7in boolean (do\u011fru\/yanl\u0131\u015f) bir de\u011fer al\u0131r. Bu s\u00fctun 1<\/code> (true) olarak i\u015faretlendi\u011finde, birle\u015ftirme i\u015flemi s\u0131ras\u0131nda ilgili kay\u0131t silinir. Bu mekanizmalar, ReplacingMergeTree<\/code>‘ye veri ya\u015fam d\u00f6ng\u00fcs\u00fcn\u00fc (ekleme, g\u00fcncelleme, silme) daha esnek bir \u015fekilde y\u00f6netme yetene\u011fi kazand\u0131r\u0131r ve \u00f6zellikle b\u00fcy\u00fck \u00f6l\u00e7ekli, s\u00fcrekli g\u00fcncellenen veri setleri i\u00e7in ideal bir \u00e7\u00f6z\u00fcm sunar.<\/p>\n

\n
\nCREATE TABLE my_data_with_versions (\n    id UInt64,\n    event_time DateTime,\n    value String,\n    version UInt64,\n    is_deleted UInt8\n) ENGINE = ReplacingMergeTree(version, is_deleted)\nORDER BY (id, event_time);\n  <\/pre>\n
<\/code>\n<\/div>\n
Yukar\u0131daki \u00f6rnekte, id<\/code> ve event_time<\/code> birincil anahtar\u0131 olu\u015ftururken, version<\/code> s\u00fctunu tekille\u015ftirme s\u0131ras\u0131nda en g\u00fcncel kayd\u0131 belirlemek i\u00e7in, is_deleted<\/code> ise kay\u0131tlar\u0131 silmek i\u00e7in kullan\u0131lacakt\u0131r. Bu motor, veri tutarl\u0131l\u0131\u011f\u0131n\u0131 ve tekli\u011fini sa\u011flamak isteyen ancak ayn\u0131 zamanda y\u00fcksek yazma performans\u0131 gerektiren uygulamalar i\u00e7in vazge\u00e7ilmez bir ara\u00e7t\u0131r.<\/p>\n
Sat\u0131r Say\u0131n\u0131z Neden Beklentinizle Uyu\u015fmuyor? Arka Plan Birle\u015ftirme \u0130\u015flemleri<\/h3>\n
\u015eimdi gelelim as\u0131l konuya: ReplacingMergeTree<\/code> kullan\u0131rken neden SELECT count(*) FROM my_table<\/code> sorgusunun sonucu, bekledi\u011finiz tekil kay\u0131t say\u0131s\u0131yla uyu\u015fmayabilir? Bu durumun temel nedeni, ReplacingMergeTree<\/code> motorunun tekille\u015ftirme i\u015flemini asenkron olarak, yani arka planda \u00e7al\u0131\u015fan birle\u015ftirme (merge) i\u015flemleri s\u0131ras\u0131nda ger\u00e7ekle\u015ftirmesidir.<\/p>\n
ClickHouse'a yeni veri ekledi\u011finizde, bu veriler hemen ana tabloya entegre edilmez. Bunun yerine, disk \u00fczerinde yeni, k\u00fc\u00e7\u00fck \"veri par\u00e7alar\u0131\" (data parts) olarak yaz\u0131l\u0131rlar. Her INSERT<\/code> i\u015flemi genellikle bir veya daha fazla yeni veri par\u00e7as\u0131 olu\u015fturur. ReplacingMergeTree<\/code> motoru, bu par\u00e7alar i\u00e7inde ayn\u0131 birincil anahtara sahip yinelenen kay\u0131tlar olsa bile, ilk ba\u015fta hepsini saklar. Tekille\u015ftirme, ancak ClickHouse'un arka plan s\u00fcre\u00e7leri bu k\u00fc\u00e7\u00fck par\u00e7alar\u0131 daha b\u00fcy\u00fck par\u00e7alar halinde birle\u015ftirdi\u011finde ger\u00e7ekle\u015fir.<\/p>\n
Bu birle\u015ftirme i\u015flemleri, veritaban\u0131 sunucusunun kaynak yo\u011funlu\u011funa, veri hacmine ve yap\u0131land\u0131rmas\u0131na ba\u011fl\u0131 olarak belirli aral\u0131klarla tetiklenir. Yeni veriler geldik\u00e7e ve eski par\u00e7alar birle\u015ftik\u00e7e, yinelenen kay\u0131tlar ortadan kald\u0131r\u0131l\u0131r ve sadece en g\u00fcncel (veya version<\/code> s\u00fctununa g\u00f6re en y\u00fcksek versiyonlu) kay\u0131t kal\u0131r. Ancak, birle\u015ftirme i\u015flemi hen\u00fcz ger\u00e7ekle\u015fmediyse veya k\u0131smen ger\u00e7ekle\u015ftiyse, tablonuzda hala yinelenen kay\u0131tlar bulunabilir. Bu durumda, SELECT count(*) FROM my_table<\/code> sorgusu, tekille\u015ftirme i\u015flemi tamamlanmam\u0131\u015f t\u00fcm fiziksel sat\u0131rlar\u0131 sayacakt\u0131r. Bu, sizin \"mant\u0131ksal\" olarak bekledi\u011finiz tekil sat\u0131r say\u0131s\u0131ndan daha y\u00fcksek bir de\u011fer d\u00f6nd\u00fcrecektir.<\/p>\n
\u00d6rne\u011fin, id<\/code> s\u00fctununu birincil anahtar olarak kulland\u0131\u011f\u0131n\u0131z bir ReplacingMergeTree<\/code> tablonuz olsun. id=1<\/code> olan bir kayd\u0131 eklediniz. Daha sonra id=1<\/code> olan kayd\u0131 farkl\u0131 bir value<\/code> ile tekrar eklediniz. Bu iki INSERT<\/code> i\u015flemi, iki ayr\u0131 veri par\u00e7as\u0131 veya ayn\u0131 par\u00e7an\u0131n farkl\u0131 b\u00f6l\u00fcmlerinde iki ayr\u0131 sat\u0131r olarak var olabilir. SELECT count(*)<\/code> sorgusu bu a\u015famada 2<\/code> d\u00f6nd\u00fcrebilir. Ancak, birle\u015ftirme i\u015flemi ger\u00e7ekle\u015fti\u011finde, bu iki sat\u0131rdan biri (genellikle en g\u00fcncel olan\u0131) ortadan kald\u0131r\u0131lacak ve count(*)<\/code> sorgusu 1<\/code> d\u00f6nd\u00fcrecektir.<\/p>\n
Bu asenkron yap\u0131, ClickHouse'un y\u00fcksek yazma performans\u0131 elde etmesini sa\u011flar, \u00e7\u00fcnk\u00fc her INSERT<\/code> i\u015fleminde an\u0131nda tekille\u015ftirme yapmak yerine, bu maliyetli i\u015flemi arka plana atar. Ancak bu, veritaban\u0131n\u0131n anl\u0131k durumunun her zaman tam olarak tekille\u015ftirilmi\u015f olmayabilece\u011fi anlam\u0131na gelir. Bu nedenle, ReplacingMergeTree<\/code> kullan\u0131rken sat\u0131r say\u0131s\u0131ndaki bu \"tutars\u0131zl\u0131klar\" bir hata de\u011fil, motorun tasar\u0131m\u0131ndan kaynaklanan beklenen bir davran\u0131\u015ft\u0131r. Veri tutarl\u0131l\u0131\u011f\u0131na anl\u0131k ve tam olarak ihtiya\u00e7 duyulan durumlarda, sorgular\u0131n\u0131zda \u00f6zel yakla\u015f\u0131mlar sergilemeniz gerekecektir. Bu durum, veri m\u00fchendislerinin ve analistlerin ReplacingMergeTree<\/code> motorunun do\u011fas\u0131n\u0131 iyi anlamalar\u0131n\u0131 ve sorgular\u0131n\u0131 buna g\u00f6re optimize etmelerini gerektiren \u00f6nemli bir detayd\u0131r.<\/p>\n
Uygulamal\u0131 \u00d6rnek: ReplacingMergeTree ile Veri Ekleme ve Tekille\u015ftirme<\/h3>\n
\u015eimdi ReplacingMergeTree<\/code> motorunun nas\u0131l \u00e7al\u0131\u015ft\u0131\u011f\u0131n\u0131 ve sat\u0131r say\u0131s\u0131ndaki tutars\u0131zl\u0131klar\u0131 pratik bir \u00f6rnek \u00fczerinden inceleyelim. Bu \u00f6rnek, verileri nas\u0131l ekledi\u011fimizi, tekille\u015ftirme \u00f6ncesi ve sonras\u0131 sat\u0131r say\u0131lar\u0131n\u0131 ve bu durumu nas\u0131l y\u00f6netebilece\u011fimizi g\u00f6sterecek.<\/p>\n
\u0130lk olarak, basit bir ReplacingMergeTree<\/code> tablosu olu\u015ftural\u0131m. Bu tabloda birincil anahtar olarak id<\/code> ve event_time<\/code> s\u00fctunlar\u0131n\u0131 kullanaca\u011f\u0131z ve tekille\u015ftirme i\u00e7in version<\/code> s\u00fctununu belirtece\u011fiz.<\/p>\n
\n
\nCREATE TABLE sensor_readings (\n    device_id UInt32,\n    event_time DateTime,\n    temperature Float32,\n    humidity Float32,\n    version UInt64\n) ENGINE = ReplacingMergeTree(version)\nORDER BY (device_id, event_time);\n  <\/pre>\n
<\/code>\n<\/div>\n
Bu tabloda device_id<\/code> ve event_time<\/code> kombinasyonu birincil anahtar\u0131m\u0131zd\u0131r. version<\/code> s\u00fctunu ise ayn\u0131 (device_id, event_time)<\/code> \u00e7ifti i\u00e7in en yeni kayd\u0131 belirlemek amac\u0131yla kullan\u0131lacak.<\/p>\n
\u015eimdi bu tabloya farkl\u0131 zamanlarda ve farkl\u0131 versiyonlarda veri ekleyelim:<\/p>\n
\n
\n-- \u0130lk kay\u0131tlar\nINSERT INTO sensor_readings VALUES (1, '2023-01-01 10:00:00', 25.5, 60.2, 1);\nINSERT INTO sensor_readings VALUES (2, '2023-01-01 10:01:00', 22.1, 55.0, 1);\n\n-- device_id=1 i\u00e7in daha yeni bir s\u0131cakl\u0131k okumas\u0131 (ayn\u0131 event_time, daha y\u00fcksek version)\nINSERT INTO sensor_readings VALUES (1, '2023-01-01 10:00:00', 26.0, 61.0, 2);\n\n-- device_id=2 i\u00e7in farkl\u0131 bir zaman diliminde kay\u0131t\nINSERT INTO sensor_readings VALUES (2, '2023-01-01 10:02:00', 23.5, 56.5, 1);\n\n-- device_id=1 i\u00e7in farkl\u0131 bir zaman diliminde kay\u0131t\nINSERT INTO sensor_readings VALUES (1, '2023-01-01 10:03:00', 27.0, 62.0, 1);\n  <\/pre>\n
<\/code>\n<\/div>\n
Verileri ekledikten hemen sonra toplam sat\u0131r say\u0131s\u0131n\u0131 sorgulayal\u0131m:<\/p>\n
\n
\nSELECT count(*) FROM sensor_readings;\n  <\/pre>\n
<\/code>\n<\/div>\n
Bu sorgu muhtemelen 5<\/code> sonucunu d\u00f6nd\u00fcrecektir. \u00c7\u00fcnk\u00fc INSERT<\/code> i\u015flemleri yeni veri par\u00e7alar\u0131 olu\u015fturur ve tekille\u015ftirme hen\u00fcz ger\u00e7ekle\u015fmemi\u015ftir. (1, '2023-01-01 10:00:00')<\/code> birincil anahtar\u0131na sahip iki kay\u0131t fiziksel olarak hala mevcuttur.<\/p>\n
\u015eimdi, tekille\u015ftirme i\u015flemini tetiklemek i\u00e7in manuel olarak birle\u015ftirme i\u015flemini ba\u015flatal\u0131m. Normalde bu i\u015flem ClickHouse taraf\u0131ndan otomatik olarak yap\u0131l\u0131r, ancak demo amac\u0131yla zorlayabiliriz:<\/p>\n
\n
\nOPTIMIZE TABLE sensor_readings FINAL;\n  <\/pre>\n
<\/code>\n<\/div>\n
OPTIMIZE TABLE<\/code> komutu, ClickHouse'a veri par\u00e7alar\u0131n\u0131 birle\u015ftirmesini s\u00f6yler. FINAL<\/code> anahtar kelimesi ise t\u00fcm olas\u0131 birle\u015ftirmelerin yap\u0131lmas\u0131n\u0131 ve tekille\u015ftirmenin tamamlanmas\u0131n\u0131 sa\u011flar. Bu komut, \u00f6zellikle b\u00fcy\u00fck tablolarda kaynak yo\u011fun olabilir ve \u00fcretim ortam\u0131nda dikkatli kullan\u0131lmal\u0131d\u0131r.<\/p>\n
Birle\u015ftirme i\u015flemi tamamland\u0131ktan sonra tekrar sat\u0131r say\u0131s\u0131n\u0131 sorgulayal\u0131m:<\/p>\n
\n
\nSELECT count(*) FROM sensor_readings;\n  <\/pre>\n
<\/code>\n<\/div>\n
Bu sefer sorgu 4<\/code> sonucunu d\u00f6nd\u00fcrecektir. \u00c7\u00fcnk\u00fc (1, '2023-01-01 10:00:00')<\/code> birincil anahtar\u0131na sahip iki kay\u0131ttan, version=2<\/code> olan (daha y\u00fcksek versiyonlu) kay\u0131t saklanm\u0131\u015f, version=1<\/code> olan kay\u0131t ise silinmi\u015ftir.<\/p>\n
Peki, OPTIMIZE TABLE<\/code> \u00e7al\u0131\u015ft\u0131rmadan her zaman do\u011fru sonucu nas\u0131l alabiliriz? Sorgular\u0131n\u0131zda FINAL<\/code> anahtar kelimesini kullanarak, ClickHouse'un sorgu an\u0131nda tekille\u015ftirme yapmas\u0131n\u0131 sa\u011flayabilirsiniz:<\/p>\n
\n
\nSELECT count(*) FROM sensor_readings FINAL;\n  <\/pre>\n
<\/code>\n<\/div>\n
Bu sorgu da 4<\/code> sonucunu d\u00f6nd\u00fcrecektir. FINAL<\/code> anahtar kelimesi, sorgu \u00e7al\u0131\u015ft\u0131r\u0131l\u0131rken t\u00fcm veri par\u00e7alar\u0131 \u00fczerinde birle\u015ftirme mant\u0131\u011f\u0131n\u0131 uygulayarak, tekille\u015ftirilmi\u015f nihai sonucu verir. Ancak unutmay\u0131n ki FINAL<\/code> kullanmak, \u00f6zellikle b\u00fcy\u00fck veri setlerinde sorgu performans\u0131n\u0131 d\u00fc\u015f\u00fcrebilir, \u00e7\u00fcnk\u00fc her sorgu i\u00e7in an\u0131nda birle\u015ftirme maliyetini \u00fcstlenirsiniz. Bu nedenle, FINAL<\/code> kullan\u0131m\u0131, kritik raporlar veya anl\u0131k tekil veri ihtiyac\u0131 olan durumlar i\u00e7in daha uygundur.<\/p>\n
Bu \u00f6rnek, ReplacingMergeTree<\/code>'nin nas\u0131l \u00e7al\u0131\u015ft\u0131\u011f\u0131n\u0131 ve sat\u0131r say\u0131s\u0131ndaki tutars\u0131zl\u0131klar\u0131n nedenlerini a\u00e7\u0131k\u00e7a g\u00f6stermektedir. Veri tutarl\u0131l\u0131\u011f\u0131na ihtiyac\u0131n\u0131z oldu\u011funda OPTIMIZE TABLE<\/code> veya FINAL<\/code> anahtar kelimesini kullanman\u0131n \u00f6nemini vurgular.<\/p>\n
Sat\u0131r Say\u0131s\u0131 Tutars\u0131zl\u0131\u011f\u0131n\u0131 Y\u00f6netmek: FINAL<\/code> Anahtar Kelimesi ve OPTIMIZE TABLE<\/code><\/h3>\n
ReplacingMergeTree<\/code> motorunun asenkron tekille\u015ftirme yap\u0131s\u0131 nedeniyle ortaya \u00e7\u0131kan sat\u0131r say\u0131s\u0131 tutars\u0131zl\u0131klar\u0131n\u0131 y\u00f6netmek i\u00e7in iki temel y\u00f6ntemimiz vard\u0131r: FINAL<\/code> anahtar kelimesini sorgularda kullanmak ve OPTIMIZE TABLE<\/code> komutunu \u00e7al\u0131\u015ft\u0131rmak. Her iki y\u00f6ntemin de kendine g\u00f6re avantajlar\u0131 ve dezavantajlar\u0131 bulunmaktad\u0131r.<\/p>\n
1. FINAL<\/code> Anahtar Kelimesi Kullan\u0131m\u0131:<\/strong><\/p>\n
FINAL<\/code> anahtar kelimesi, SELECT<\/code> sorgular\u0131n\u0131za ekleyebilece\u011finiz g\u00fc\u00e7l\u00fc bir ara\u00e7t\u0131r. Bir ReplacingMergeTree<\/code> tablosundan veri sorgularken FINAL<\/code> kulland\u0131\u011f\u0131n\u0131zda, ClickHouse sorgu s\u0131ras\u0131nda t\u00fcm veri par\u00e7alar\u0131n\u0131 birle\u015ftirir ve sadece tekille\u015ftirilmi\u015f, nihai kay\u0131tlar\u0131 d\u00f6nd\u00fcr\u00fcr. Bu, size o anki en do\u011fru ve tekil sat\u0131r say\u0131s\u0131n\u0131 veya veriyi sa\u011flar.<\/p>\n
\n
\nSELECT count(*) FROM my_table FINAL WHERE condition;\nSELECT * FROM my_table FINAL ORDER BY primary_key;\n  <\/pre>\n
<\/code>\n<\/div>\n
*   Avantajlar\u0131:<\/strong>
\n    *   An\u0131nda ve do\u011fru tekille\u015ftirilmi\u015f sonu\u00e7lar sa\u011flar.
\n    *   Veri par\u00e7alar\u0131n\u0131n arka planda ne zaman birle\u015fti\u011fine ba\u011f\u0131ml\u0131 kalmazs\u0131n\u0131z.
\n    *   Veri tutarl\u0131l\u0131\u011f\u0131 gerektiren kritik raporlar i\u00e7in idealdir.
\n*   Dezavantajlar\u0131:<\/strong>
\n    *   Performans Etkisi:<\/strong> FINAL<\/code> anahtar kelimesi, sorgu an\u0131nda birle\u015ftirme i\u015flemini tetikledi\u011fi i\u00e7in, \u00f6zellikle b\u00fcy\u00fck veri setlerinde ve karma\u015f\u0131k sorgularda ciddi performans d\u00fc\u015f\u00fc\u015flerine neden olabilir. Her sorguda t\u00fcm par\u00e7alar\u0131n okunup birle\u015ftirilmesi gerekir. Bu, sorgu gecikmesini art\u0131rabilir.
\n    *   Kaynak T\u00fcketimi:<\/strong> Daha fazla CPU ve bellek kayna\u011f\u0131 t\u00fcketebilir.<\/p>\n
2. OPTIMIZE TABLE<\/code> Komutu Kullan\u0131m\u0131:<\/strong><\/p>\n
OPTIMIZE TABLE<\/code> komutu, ClickHouse'a belirli bir tablonun veri par\u00e7alar\u0131n\u0131 manuel olarak birle\u015ftirmesini emreder. FINAL<\/code> anahtar kelimesiyle birlikte kullan\u0131ld\u0131\u011f\u0131nda (OPTIMIZE TABLE my_table FINAL;<\/code>), t\u00fcm olas\u0131 birle\u015ftirmelerin yap\u0131lmas\u0131n\u0131 ve tekille\u015ftirmenin tamamen tamamlanmas\u0131n\u0131 sa\u011flar.<\/p>\n
\n
\nOPTIMIZE TABLE my_table FINAL;\n  <\/pre>\n
<\/code>\n<\/div>\n
*   Avantajlar\u0131:<\/strong>
\n    *   Veri tekille\u015ftirmeyi kal\u0131c\u0131 olarak ger\u00e7ekle\u015ftirir. Bu i\u015flemden sonra SELECT count(*)<\/code> sorgusu do\u011fru sonucu d\u00f6nd\u00fcr\u00fcr (yeni veri eklenmedi\u011fi s\u00fcrece).
\n    *   Sorgu performans\u0131n\u0131 art\u0131r\u0131r, \u00e7\u00fcnk\u00fc birle\u015ftirilmi\u015f par\u00e7alar daha az ve daha b\u00fcy\u00fck oldu\u011fu i\u00e7in sorgular\u0131n daha az veri okumas\u0131 gerekir.
\n    *   Daha iyi veri s\u0131k\u0131\u015ft\u0131rma sa\u011flar.
\n*   Dezavantajlar\u0131:<\/strong>
\n    *   Kaynak Yo\u011funlu\u011fu:<\/strong> \u00d6zellikle b\u00fcy\u00fck tablolarda ve yo\u011fun y\u00fck alt\u0131nda \u00e7al\u0131\u015ft\u0131r\u0131ld\u0131\u011f\u0131nda \u00e7ok kaynak t\u00fcketebilir. Bu, veritaban\u0131 sunucusunun performans\u0131n\u0131 ge\u00e7ici olarak d\u00fc\u015f\u00fcrebilir.
\n    *   Asenkron De\u011fil:<\/strong> Manuel olarak tetiklenmesi gerekir veya zamanlanm\u0131\u015f bir g\u00f6rev (cron job) ile otomatikle\u015ftirilmelidir. Anl\u0131k tekille\u015ftirme sa\u011flamaz; komutun tamamlanmas\u0131 zaman al\u0131r.
\n    *   S\u00fcrekli Veri Ak\u0131\u015f\u0131:<\/strong> E\u011fer s\u00fcrekli olarak yeni veri geliyorsa, OPTIMIZE TABLE<\/code> komutunu s\u0131k s\u0131k \u00e7al\u0131\u015ft\u0131rman\u0131z gerekebilir, bu da performans sorunlar\u0131na yol a\u00e7abilir.<\/p>\n
Ne Zaman Hangisini Kullanmal\u0131?<\/strong><\/p>\n
*   FINAL<\/code>:<\/strong> Anl\u0131k, kesin ve tekil veri gerektiren raporlar veya analizler i\u00e7in uygundur. \u00d6rne\u011fin, \"Bug\u00fcn ka\u00e7 farkl\u0131 m\u00fc\u015fteri sipari\u015f verdi?\" gibi sorular. Ancak, bu t\u00fcr sorgular\u0131n s\u0131kl\u0131\u011f\u0131 ve veri boyutu g\u00f6z \u00f6n\u00fcnde bulundurulmal\u0131d\u0131r.
\n*   OPTIMIZE TABLE<\/code>:<\/strong> Daha az s\u0131kl\u0131kta, \u00f6rne\u011fin g\u00fcnde bir kez veya belirli bir veri y\u00fckleme penceresinden sonra, veritaban\u0131n\u0131n genel performans\u0131n\u0131 ve depolama verimlili\u011fini art\u0131rmak i\u00e7in kullan\u0131labilir. \u00d6zellikle gece veya d\u00fc\u015f\u00fck y\u00fck zamanlar\u0131nda zamanlanm\u0131\u015f g\u00f6revlerle \u00e7al\u0131\u015ft\u0131rmak iyi bir stratejidir. Bu, sonraki sorgular\u0131n FINAL<\/code> kullanmadan da tekille\u015ftirilmi\u015f verilere eri\u015fmesini sa\u011flar.<\/p>\n
Her iki y\u00f6ntemin de dikkatli bir \u015fekilde de\u011ferlendirilmesi ve kullan\u0131m senaryonuza en uygun olan\u0131n se\u00e7ilmesi \u00f6nemlidir. Genellikle, OPTIMIZE TABLE<\/code> komutunu d\u00fczenli aral\u0131klarla \u00e7al\u0131\u015ft\u0131rmak ve kritik sorgularda FINAL<\/code> kullanmak en dengeli yakla\u015f\u0131m\u0131 sunar.<\/p>\n
\u0130leri D\u00fczey Kullan\u0131m: version<\/code> ve is_deleted<\/code> S\u00fctunlar\u0131 ile Daha Fazla Kontrol<\/h3>\n
ReplacingMergeTree<\/code> motoru, varsay\u0131lan tekille\u015ftirme davran\u0131\u015f\u0131n\u0131n \u00f6tesinde, version<\/code> ve is_deleted<\/code> s\u00fctunlar\u0131 arac\u0131l\u0131\u011f\u0131yla veri y\u00f6netiminde daha fazla esneklik ve kontrol sunar. Bu s\u00fctunlar, \u00f6zellikle karma\u015f\u0131k veri ya\u015fam d\u00f6ng\u00fclerine sahip uygulamalarda, kay\u0131tlar\u0131n nas\u0131l g\u00fcncellenece\u011fi veya silinece\u011fi konusunda ince ayar yapman\u0131z\u0131 sa\u011flar.<\/p>\n
version<\/code> S\u00fctunu:<\/strong><\/p>\n
version<\/code> s\u00fctunu, ReplacingMergeTree<\/code> motorunun ayn\u0131 birincil anahtara sahip birden fazla kay\u0131t aras\u0131nda hangisinin \"en g\u00fcncel\" oldu\u011funu belirlemesi i\u00e7in kullan\u0131l\u0131r. Bu s\u00fctun genellikle bir zaman damgas\u0131 (DateTime<\/code> veya UInt64<\/code> olarak Unix epoch zaman\u0131) veya basit\u00e7e artan bir say\u0131 (UInt64<\/code>) olarak tan\u0131mlan\u0131r. Motor, birle\u015ftirme i\u015flemi s\u0131ras\u0131nda ayn\u0131 birincil anahtara sahip birden fazla kay\u0131tla kar\u015f\u0131la\u015ft\u0131\u011f\u0131nda, version<\/code> s\u00fctunundaki en y\u00fcksek de\u011fere sahip kayd\u0131 saklar ve di\u011ferlerini atar.<\/p>\n
\u00d6rnek:<\/p>\n
\n
\nCREATE TABLE user_profiles (\n    user_id UInt32,\n    profile_data String,\n    updated_at DateTime,\n    version UInt64\n) ENGINE = ReplacingMergeTree(version)\nORDER BY user_id;\n  <\/pre>\n
<\/code>\n<\/div>\n
Yukar\u0131daki tabloda user_id<\/code> birincil anahtard\u0131r. updated_at<\/code> asl\u0131nda bir versiyon bilgisi olarak kullan\u0131labilir, ancak ReplacingMergeTree<\/code>'nin kendi version<\/code> parametresini kullanmak daha g\u00fcvenlidir. version<\/code> s\u00fctununa her g\u00fcncellemede artan bir de\u011fer veya Unix epoch zaman damgas\u0131 atayarak, ClickHouse'un her zaman en son kullan\u0131c\u0131 profilini saklamas\u0131n\u0131 sa\u011flayabiliriz.<\/p>\n
\n
\nINSERT INTO user_profiles VALUES (1, '{\"name\":\"Ali\"}', '2023-01-01 10:00:00', 1);\nINSERT INTO user_profiles VALUES (1, '{\"name\":\"Ali Can\"}', '2023-01-01 11:00:00', 2); -- Daha yeni versiyon\nINSERT INTO user_profiles VALUES (1, '{\"name\":\"Ali Veli\"}', '2023-01-01 10:30:00', 3); -- En yeni versiyon, zaman damgas\u0131 eski olsa bile\n  <\/pre>\n
<\/code>\n<\/div>\n
Yukar\u0131daki \u00f6rnekte, OPTIMIZE TABLE user_profiles FINAL;<\/code> komutundan sonra veya SELECT * FROM user_profiles FINAL;<\/code> sorgusuyla, user_id=1<\/code> i\u00e7in sadece version=3<\/code> olan kay\u0131t ({\"name\":\"Ali Veli\"}<\/code>) kalacakt\u0131r, \u00e7\u00fcnk\u00fc version<\/code> de\u011feri en y\u00fcksektir. Bu, veritaban\u0131na gelen verilerin s\u0131ras\u0131ndan ba\u011f\u0131ms\u0131z olarak her zaman mant\u0131ksal olarak en g\u00fcncel kayd\u0131 tutman\u0131z\u0131 sa\u011flar.<\/p>\n
is_deleted<\/code> S\u00fctunu:<\/strong><\/p>\n
is_deleted<\/code> s\u00fctunu, ReplacingMergeTree<\/code> motoruna belirli kay\u0131tlar\u0131n silinmesi gerekti\u011fini bildirmek i\u00e7in kullan\u0131l\u0131r. Bu s\u00fctun genellikle UInt8<\/code> tipinde olup, 0<\/code> (false) veya 1<\/code> (true) de\u011ferlerini al\u0131r. Birle\u015ftirme i\u015flemi s\u0131ras\u0131nda, is_deleted<\/code> de\u011feri 1<\/code> olan kay\u0131tlar tamamen silinir. Bu, DELETE<\/code> sorgusu \u00e7al\u0131\u015ft\u0131rmak yerine, kay\u0131tlar\u0131 \"i\u015faretleyerek silme\" (soft delete) mekanizmas\u0131 sa\u011flar.<\/p>\n
\u00d6rnek:<\/p>\n
\n
\nCREATE TABLE product_catalog (\n    product_id UInt32,\n    product_name String,\n    price Float32,\n    version UInt64,\n    is_deleted UInt8\n) ENGINE = ReplacingMergeTree(version, is_deleted)\nORDER BY product_id;\n  <\/pre>\n
<\/code>\n<\/div>\n
Bir \u00fcr\u00fcn\u00fc ekleyelim ve sonra \"silelim\":<\/p>\n
\n
\n-- \u00dcr\u00fcn ekle\nINSERT INTO product_catalog VALUES (101, 'Ak\u0131ll\u0131 Telefon', 15000.0, 1, 0);\n\n-- \u00dcr\u00fcn\u00fc g\u00fcncelle (fiyat de\u011fi\u015fti)\nINSERT INTO product_catalog VALUES (101, 'Ak\u0131ll\u0131 Telefon', 14500.0, 2, 0);\n\n-- \u00dcr\u00fcn\u00fc sil olarak i\u015faretle\nINSERT INTO product_catalog VALUES (101, 'Ak\u0131ll\u0131 Telefon', 14500.0, 3, 1);\n  <\/pre>\n
<\/code>\n<\/div>\n
Yukar\u0131daki \u00f6rnekte, product_id=101<\/code> i\u00e7in \u00fc\u00e7 kay\u0131t ekledik. En son kay\u0131t, version=3<\/code> ve is_deleted=1<\/code> de\u011ferine sahiptir. OPTIMIZE TABLE product_catalog FINAL;<\/code> komutundan sonra veya SELECT * FROM product_catalog FINAL;<\/code> sorgusuyla, product_id=101<\/code>'e ait t\u00fcm kay\u0131tlar veritaban\u0131ndan tamamen silinecektir, \u00e7\u00fcnk\u00fc en y\u00fcksek versiyonlu kay\u0131t silinme bayra\u011f\u0131na sahiptir.<\/p>\n
Bu mekanizmalar, ReplacingMergeTree<\/code>'yi sadece tekille\u015ftirme i\u00e7in de\u011fil, ayn\u0131 zamanda karma\u015f\u0131k veri g\u00fcncelleme ve silme senaryolar\u0131 i\u00e7in de g\u00fc\u00e7l\u00fc bir ara\u00e7 haline getirir. Ancak, is_deleted<\/code> bayra\u011f\u0131n\u0131 kullan\u0131rken, silinen kay\u0131tlar\u0131n ancak birle\u015ftirme i\u015flemi tamamland\u0131\u011f\u0131nda fiziksel olarak ortadan kalkaca\u011f\u0131n\u0131 unutmamak \u00f6nemlidir. Bu, \"i\u015faretle ve sil\" yakla\u015f\u0131m\u0131n\u0131n do\u011fas\u0131 gere\u011fidir ve yine sat\u0131r say\u0131s\u0131 tutars\u0131zl\u0131klar\u0131na neden olabilir, ancak bu tutars\u0131zl\u0131klar art\u0131k silinmeyi bekleyen kay\u0131tlar\u0131 da i\u00e7erecektir. Bu ileri d\u00fczey \u00f6zellikler, ClickHouse kullan\u0131c\u0131lar\u0131na veri modellerini daha esnek ve verimli bir \u015fekilde y\u00f6netme imkan\u0131 sunar.<\/p>\n
Vaka Analizi: Ger\u00e7ek D\u00fcnya Senaryolar\u0131nda ReplacingMergeTree Kullan\u0131m\u0131<\/h3>\n
ReplacingMergeTree<\/code> motoru, ger\u00e7ek d\u00fcnya senaryolar\u0131nda, \u00f6zellikle s\u00fcrekli g\u00fcncellenen ve tekilli\u011fin \u00f6nemli oldu\u011fu veri k\u00fcmelerinde b\u00fcy\u00fck avantajlar sunar. \u0130\u015fte birka\u00e7 \u00f6rnek vaka analizi:<\/p>\n
1. E-Ticaret Platformlar\u0131nda \u00dcr\u00fcn Stok Takibi:<\/strong><\/p>\n
Bir e-ticaret sitesinde \u00fcr\u00fcn stoklar\u0131 s\u00fcrekli g\u00fcncellenir. Her sat\u0131\u015f, her i<\/p>\n","protected":false},"excerpt":{"rendered":"ClickHouse ReplacingMergeTree: Sat\u0131r Say\u0131n\u0131z Neden Tutars\u0131z \u00c7\u0131k\u0131yor?","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-41552","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-genel","7":"cs-entry","8":"cs-video-wrap"},"yoast_head":"\nClickHouse ReplacingMergeTree: Sat\u0131r Say\u0131n\u0131z Neden Tutars\u0131z \u00c7\u0131k\u0131yor? - Kodlar\u0131n Gizemli D\u00fcnyas\u0131<\/title>\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\/clickhouse-replacingmergetree-satir-sayiniz-neden-tutarsiz-cikiyor\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ClickHouse ReplacingMergeTree: Sat\u0131r Say\u0131n\u0131z Neden Tutars\u0131z \u00c7\u0131k\u0131yor?\" \/>\n<meta property=\"og:description\" content=\"ClickHouse ReplacingMergeTree: Sat\u0131r Say\u0131n\u0131z Neden Tutars\u0131z \u00c7\u0131k\u0131yor?\" \/>\n<meta property=\"og:url\" content=\"https:\/\/fatihsoysal.com\/blog\/clickhouse-replacingmergetree-satir-sayiniz-neden-tutarsiz-cikiyor\/\" \/>\n<meta property=\"og:site_name\" content=\"Kodlar\u0131n Gizemli D\u00fcnyas\u0131\" \/>\n<meta property=\"article:published_time\" content=\"2026-05-02T18:01:36+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=\"18 dakika\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/clickhouse-replacingmergetree-satir-sayiniz-neden-tutarsiz-cikiyor\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/clickhouse-replacingmergetree-satir-sayiniz-neden-tutarsiz-cikiyor\/\"},\"author\":{\"name\":\"Fatih Soysal\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1\"},\"headline\":\"ClickHouse ReplacingMergeTree: Sat\u0131r Say\u0131n\u0131z Neden Tutars\u0131z \u00c7\u0131k\u0131yor?\",\"datePublished\":\"2026-05-02T18:01:36+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/clickhouse-replacingmergetree-satir-sayiniz-neden-tutarsiz-cikiyor\/\"},\"wordCount\":3081,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1\"},\"inLanguage\":\"tr\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/fatihsoysal.com\/blog\/clickhouse-replacingmergetree-satir-sayiniz-neden-tutarsiz-cikiyor\/#respond\"]}],\"copyrightYear\":\"2026\",\"copyrightHolder\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#organization\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/clickhouse-replacingmergetree-satir-sayiniz-neden-tutarsiz-cikiyor\/\",\"url\":\"https:\/\/fatihsoysal.com\/blog\/clickhouse-replacingmergetree-satir-sayiniz-neden-tutarsiz-cikiyor\/\",\"name\":\"ClickHouse ReplacingMergeTree: Sat\u0131r Say\u0131n\u0131z Neden Tutars\u0131z \u00c7\u0131k\u0131yor? 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