I am attempting to identify what version of postgres server I have installed, and noticed this question on that.
The first answer there says to run SELECT version();
(in postgres), the second answer says to run pg_config --version
(in the terminal). Somehow I get different versions when running each of these commands.
In Postgres:
=> select version();
version
------------------------------------------------------------------------------------
PostgreSQL 9.4.12 on x86_64-unknown-linux-gnu, compiled by gcc (GCC) 5.4.0, 64-bit
(1 row)
In the terminal:
$ pg_config --version
PostgreSQL 9.6.2
Why are different version numbers reported when running these two commands?
My machine is running NixOS.