From 8bbbc6ab788b227cd04f01bceb27a9ee210b1a5f Mon Sep 17 00:00:00 2001
From: zeekling <lingzhaohui@zeekling.cn>
Date: Wed, 31 May 2023 23:56:07 +0800
Subject: [PATCH 1/6] =?UTF-8?q?=E6=9B=B4=E6=96=B0readme?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 README.md | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index a9aeed7..6b6af09 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,7 @@
-# clickhouse-study
+
+学习ClickHouse笔记
+
+# 源码编译
 
 编译命令
 
-- 
2.45.2


From 3c46abe6fe4c43a74c9dd5cf65e40cb05196f081 Mon Sep 17 00:00:00 2001
From: zeekling <lingzhaohui@zeekling.cn>
Date: Thu, 1 Jun 2023 00:17:15 +0800
Subject: [PATCH 2/6] =?UTF-8?q?=E6=9B=B4=E6=96=B0readme?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 6b6af09..2ed0317 100644
--- a/README.md
+++ b/README.md
@@ -7,6 +7,6 @@
 
 ```bash
 cmake .. -DCMAKE_CXX_COMPILER=`which clang++` -DCMAKE_C_COMPILER=`which clang` -DCMAKE_BUILD_TYPE=release -DCMAKE_BUILD_WITH_INSTALL_RPATH=ON
+ninja
 ```
 
-
-- 
2.45.2


From e286dab47fa30f4005ecae64130a7ef1f06aa3e7 Mon Sep 17 00:00:00 2001
From: zeekling <lingzhaohui@zeekling.cn>
Date: Thu, 1 Jun 2023 00:48:38 +0800
Subject: [PATCH 3/6] =?UTF-8?q?=E6=9B=B4=E6=96=B0readme?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 README.md     |  4 ++++
 bad/README.md | 11 +++++++++++
 2 files changed, 15 insertions(+)
 create mode 100644 bad/README.md

diff --git a/README.md b/README.md
index 2ed0317..aee8153 100644
--- a/README.md
+++ b/README.md
@@ -10,3 +10,7 @@ cmake .. -DCMAKE_CXX_COMPILER=`which clang++` -DCMAKE_C_COMPILER=`which clang` -
 ninja
 ```
 
+# 性能优化
+
+[性能变慢的因素](./bad/README.md)
+
diff --git a/bad/README.md b/bad/README.md
new file mode 100644
index 0000000..c81ed90
--- /dev/null
+++ b/bad/README.md
@@ -0,0 +1,11 @@
+
+本章列举对ClickHouse性能有影响的操作，主要从存储、查询方面来讲。
+
+# 存储相关
+
+## Nullable
+
+使用`Nullable`类型会对性能产生负面影响，在设计数据库的时候要避免使用`Nullable`。
+
+
+
-- 
2.45.2


From faff386e2518c411800292d49ef5595dfb498a5b Mon Sep 17 00:00:00 2001
From: zeekling <lingzhaohui@zeekling.cn>
Date: Thu, 1 Jun 2023 00:55:36 +0800
Subject: [PATCH 4/6] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=E8=A1=A8=E5=BC=95?=
 =?UTF-8?q?=E6=93=8E?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 engine/README.md | 5 +++++
 1 file changed, 5 insertions(+)
 create mode 100644 engine/README.md

diff --git a/engine/README.md b/engine/README.md
new file mode 100644
index 0000000..b613a45
--- /dev/null
+++ b/engine/README.md
@@ -0,0 +1,5 @@
+
+表引擎
+
+
+
-- 
2.45.2


From 7a85a1d22274ef61b04e649c829a961e7b77602b Mon Sep 17 00:00:00 2001
From: zeekling <lingzhaohui@zeekling.cn>
Date: Thu, 1 Jun 2023 01:16:23 +0800
Subject: [PATCH 5/6] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=E8=A1=A8=E5=BC=95?=
 =?UTF-8?q?=E6=93=8E?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 engine/README.md | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/engine/README.md b/engine/README.md
index b613a45..b055c98 100644
--- a/engine/README.md
+++ b/engine/README.md
@@ -1,5 +1,16 @@
 
-表引擎
+表引擎详解
+
+# MergeTree
+
+## ReplacingMergeTree
 
 
+## SummingMergeTree
+
+# TinyLog
+
+
+# Memory
+
 
-- 
2.45.2


From 98d7429db42c7ca139175069c5dd9598ace7909a Mon Sep 17 00:00:00 2001
From: zeekling <lingzhaohui@zeekling.cn>
Date: Thu, 1 Jun 2023 23:34:27 +0800
Subject: [PATCH 6/6] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=E5=AE=8C=E6=95=B4?=
 =?UTF-8?q?=E7=9A=84=E7=BC=96=E8=AF=91=E4=BB=A3=E7=A0=81?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 README.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/README.md b/README.md
index aee8153..b2c7e46 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,10 @@
 编译命令
 
 ```bash
+git clone git@github.com:ClickHouse/ClickHouse.git -b 23.4
+cd ClickHouse
+git submodule update --init --recursive
+mkdir build && cd build 
 cmake .. -DCMAKE_CXX_COMPILER=`which clang++` -DCMAKE_C_COMPILER=`which clang` -DCMAKE_BUILD_TYPE=release -DCMAKE_BUILD_WITH_INSTALL_RPATH=ON
 ninja
 ```
-- 
2.45.2