1.版本详细信息
postgres=# select version();
version
---------------------------------------------------------------------------------------------------------
PostgreSQL 9.2.24 on i686-pc-linux-gnu, compiled by gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-18), 32-bit
(1 row)
2.版本信息
postgres=# show server_version;
server_version
----------------
9.2.24
(1 row)
3.数字版本信息
postgres=# show server_version_num;
server_version_num
--------------------
90224
(1 row)
或
postgres=# select current_setting('server_version_num');
current_setting
-----------------
90224
(1 row)