报错信息：
-bash-4.2$ /usr/local/pg9.0/bin/initdb -D /usr/local/pg9.0/data/
The files belonging to this database system will be owned by user "postgres".
This user must also own the server process.
The database cluster will be initialized with locale en_US.UTF-8.
The default database encoding has accordingly been set to UTF8.
The default text search configuration will be set to "english".
fixing permissions on existing directory /usr/local/pg9.0/data ... ok
creating subdirectories ... ok
selecting default max_connections ... 100
selecting default shared_buffers ... 32MB
creating configuration files ... ok
creating template1 database in /usr/local/pg9.0/data/base/1 ... ok
initializing pg_authid ... FATAL: wrong number of index expressions
STATEMENT: REVOKE ALL on pg_authid FROM public;
child process exited with exit code 1
initdb: removing contents of data directory "/usr/local/pg9.0/data"
问题原因：
gcc版本过高。高版本的gcc采用了更激进的循环上界分析推导算法。但这会导致一些旧的程序运行出错。
解决方案：
- 推荐的方法：升级PostgreSQL到更新的版本。
- 如果无法更换PG数据库版本和操作系统版本，则可以采取如下临时解决方案：
1.在数据库编译安装进行configure操作时，添加参数"-Wno-aggressive-loop-optimizations"或"-fno-aggressive-loop-optimizations"。
如：
./configure --prefix=/usr/local/pg9.0 CFLAGS="-Wno-aggressive-loop-optimizations"
make clean
make
make install
我的环境 gcc 4.8.5
