查看PostgreSQL版本,编译器版本号

[postgres@localhost bin]$ ./psql -h localhost
psql (9.4.5)
Type "help" for help.

postgres=# select version();
version
-----------------------------------------------------------------------------------
PostgreSQL 9.4.5 on x86_64-unknown-linux-gnu, compiled by gcc (GCC) 4.9.3, 64-bit
(1 row)

查看PostgreSQL版本,编译器版本号

原文：http://www.cnblogs.com/songyuejie/p/5166435.html