PostgreSQL 11 install with jit on CentOS 7.5 X64

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2.disable selinux and firewalld

3. install require os packages
   -# yum install -y epel-release
   -# yum install -y gcc gcc-c++ readline-devel zlib-devel libicu-devel

4.llvm install
1).cmake
-# wget https://cmake.org/files/v3.11/cmake-3.11.4.tar.gz
-# tar zxvf cmake-3.11.4.tar.gz
-# ./configure
-# make
-# make install

2).llvm
-# wget http://releases.llvm.org/7.0.0/llvm-7.0.0.src.tar.xz
-# tar -xJf llvm-7.0.0.src.tar.xz
-# mv llvm-7.0.0.src llvm

3).Clang
-# wget http://releases.llvm.org/7.0.0/cfe-7.0.0.src.tar.xz
-# tar -xJf cfe-7.0.0.src.tar.xz
-# mv cfe-7.0.0.src llvm/tools/clang
-# mkdir build
-# cd build/
-# cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Release -DLLVM_TARGETS_TO_BUILD="X86" ../llvm
-# make -j 8
-# make install

编译提示：
-DLLVM_TARGETS_TO_BUILD="X86"，仅编译X86平台，如果64位操作系统，
默认为 x86_64-unknown-linux-gnu；否则，编译所有平台库，
此选项产生编译文件较大可能几十GB。

------ check install

-# clang --version
clang version 7.0.0 (tags/RELEASE_700/final)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /usr/local/bin
-#

-# llvm-config --version
7.0.0
-#

4. pg11 source download
   -# mkdir /home/soft
   -# cd /home/soft/
   -# wget https://ftp.postgresql.org/pub/source/v11.0/postgresql-11.0.tar.gz
   -# tar zxf postgresql-11.0.tar.gz
   -# cd postgresql-11.0
   -# ./configure --prefix=/opt/pgsql/11.0 --with-llvm --with-icu
   -# make -j 8
   -# make install

编译选项：
--with-llvm，jit support

5. add postgres user and startup scripts

PostgreSQL 11 install with jit on CentOS 7.5 X64

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原文地址：http://blog.51cto.com/heyiyi/2306614