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要安装 readline,readline-dev 开发包，要么使用 --without-readline 选项关闭 readline 功能。
#yum install readline;
#yum install readline-dev;
readline 也就是命令行编辑，关闭的话，你直接用psql 就不能编辑命令行，如果输错指令，不能回滚命令历史记录，只能手工重新输入。
在安装postgreSQL的过程中遇到一个问题，在执行 configure
过程中报以下错误,configure: error: readline library not found,可是我在系统中安装
readline 包了，
1 环境信息
2 根据提示，测试了下 configre命令，果然报这个错
[root@HK81-107 postgresql-9.0.0]# ./configure
checking build system type... i686-pc-linux-gnu
checking host system type... i686-pc-linux-gnu
checking which template to use... linux
checking whether to build with 64-bit integer date/time support... yes
checking whether NLS is wanted... no
checking for default port number... 5432
checking for block size... 8kB
checking for segment size... 1GB
checking for WAL block size... 8kB
checking for WAL segment size... 16MB
checking for gcc... gcc
checking for C compiler default output file name... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables...
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking if gcc supports -Wdeclaration-after-statement... yes
checking if gcc supports -Wendif-labels... yes
checking if gcc supports -fno-strict-aliasing... yes
checking if gcc supports -fwrapv... yes
checking whether the C compiler still works... yes
checking how to run the C preprocessor... gcc -E
checking allow thread-safe client libraries... yes
checking whether to build with Tcl... no
checking whether to build Perl modules... no
checking whether to build Python modules... no
checking whether to build with GSSAPI support... no
checking whether to build with Kerberos 5 support... no
checking whether to build with PAM support... no
checking whether to build with LDAP support... no
checking whether to build with Bonjour support... no
checking whether to build with OpenSSL support... no
checking for grep that handles long lines and -e... /bin/grep
checking for egrep... /bin/grep -E
checking for ld used by GCC... /usr/bin/ld
checking if the linker (/usr/bin/ld) is GNU ld... yes
checking for ranlib... ranlib
checking for strip... strip
checking whether it is possible to strip libraries... yes
checking for ar... ar
checking for tar... /bin/tar
checking whether ln -s works... yes
checking for gawk... gawk
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for bison... no
configure: WARNING:
*** Without Bison you will not be able to build PostgreSQL from CVS nor
*** change any of the parser definition files. You can obtain Bison from
*** a GNU mirror site. (If you are using the official distribution of
*** PostgreSQL then you do not need to worry about this,because the Bison
*** output is pre-generated.)
checking for flex... no
configure: WARNING:
*** Without Flex you will not be able to build PostgreSQL from CVS nor
*** change any of the scanner definition files. You can obtain Flex from
*** a GNU mirror site. (If you are using the official distribution of
*** PostgreSQL then you do not need to worry about this because the Flex
*** output is pre-generated.)
checking for perl... /usr/bin/perl
configure: using perl 5.8.8
checking for main in -lm... yes
checking for library containing setproctitle... no
checking for library containing dlopen... -ldl
checking for library containing socket... none required
checking for library containing shl_load... no
checking for library containing getopt_long... none required
checking for library containing crypt... -lcrypt
checking for library containing fdatasync... none required
checking for library containing gethostbyname_r... none required
checking for library containing shmget... none required
checking for -lreadline... no
checking for -ledit... no
configure: error: readline library not found
If you have readline already installed,see config.log for details on the
failure. It is possible the compiler isnt looking in the proper directory.
Use --without-readline to disable readline support.
根据提示，应该是没有安装 readline包。
3 检查系统是否安装 readline 包
[root@HK81-107 postgresql-9.0.0]# rpm -qa | grep readline
readline-5.1-3.el5
说明系统已经安装了 readline包。
4通过 yum 搜索相关的 readline 包
[root@HK81-107 postgresql-9.0.0]# yum search readline
lftp.i386 : A sophisticated file transfer program
lftp.i386 : A sophisticated file transfer program
php-readline.i386 : Standard PHP module provides readline library support
lftp.i386 : A sophisticated file transfer program
readline.i386 : A library for editing typed command lines.
compat-readline43.i386 : The readline 4.3 library for compatibility with older software.
readline-devel.i386 : Files needed to develop programs which use the readline library.
readline.i386 : A library for editing typed command lines.
根据提示，有一个包引起了注意 "readline-devel",猜想可能与这个包有关。
5 安装 readline-devel 包
[root@HK81-107 postgresql-9.0.0]# yum -y install -y readline-devel
Setting up Install Process
Parsing package install arguments
Resolving Dependencies
--> Running transaction check
---> Package readline-devel.i386 0:5.1-3.el5 set to be updated
--> Processing Dependency: libtermcap-devel for package: readline-devel
--> Running transaction check
---> Package libtermcap-devel.i386 0:2.0.8-46.1 set to be updated
--> Finished Dependency Resolution
Dependencies Resolved
=============================================================================
Package Arch Version Repository Size
=============================================================================
Installing:
readline-devel i386 5.1-3.el5 base 146 k
Installing for dependencies:
libtermcap-devel i386 2.0.8-46.1 base 56 k
Transaction Summary
=============================================================================
Install 2 Package(s)
Update 0 Package(s)
Remove 0 Package(s)
Total download size: 201 k
Downloading Packages:
(1/2): libtermcap-devel-2 100% |=========================| 56 kB 00:00
(2/2): readline-devel-5.1 100% |=========================| 146 kB 00:00
Running rpm_check_debug
Running Transaction Test
Finished Transaction Test
Transaction Test Succeeded
Running Transaction
Installing: libtermcap-devel ######################### [1/2]
Installing: readline-devel ######################### [2/2]
Installed: readline-devel.i386 0:5.1-3.el5
Dependency Installed: libtermcap-devel.i386 0:2.0.8-46.1
Complete!
6 再次执行 configure 成功。
7 还有一种解决方法：在configure 加上参数 --without-readline ，不过这样就不可以在命令行里面输入了，所以不建议这样。。。
8configure 成功之后接着就是make了
9 make之后就是make install之后安装成功的话就会出现如下图所示的界面
10.修改postgreSQL安装目录的权限，默认的安装目录在/usr/local/pgSQL下
修改权限命令为chmod -R 777 /usr/local/pgSQL
运行之后pgSQL目录下面的所有文件都会有XWR(X：可执行，W：可写，R：可读)权限。命令中的-R参数说明是 递归的把文件夹pgSQL目录及其目录下的所有文件都修改为相应的权限，777就是代表加上对本用户，本用户组的其他用户和不是这个组的用户增加XWR权 限。
11.
到此，PostgreSQL的安装完成了，接下来可以试着用用这个开源数据库啦…
1)：首先是初始化数据库。进入刚刚安装PG的文件夹/home/pg/postgr(这是我安装pg的目录，默认的安装目录是在/usr/local/pgSQL下)，输入./bin/initdb –D ../data. 这里的命令格式还需要查明白，特别是-D等参数的意义。这样会在postgr下面产生一个data文件夹。
2)：启动数据库服务器。./bin/postmaster –D ./data&. 其中&的意义需要弄明白，差这一个符号就会导致一定的问题，貌似启动数据库服务器还可以使用另外的命令：/bin/postgres -D ./data 或者是 ./bin/pg_ctl -D ./data -l logfile start。这些命令的区别可以自己查查手册或者咨询一下助教。
3)：在另外一个命令行下面，创建一个本地数据库。./bin/createdb testdb，其中testdb是数据库名。在data目录下会产生一个文件夹
4)：链接数据库服务器。./bin/psql testdb. 此时，输入help可以获得帮助。见下图
5)：访问数据库。这里就是输入sql命令了，以后调试的入口就是这里吧。结束后按q退出。
6)：最后是关闭数据库服务器。./bin/pg_ctl stop –D ./data. （编辑：李大同）
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