Provided by: pgpool2_4.1.1-1_amd64 

NAME
SHOW_POOL_VERSION - displays a string containing the Pgpool-II release number.
SYNOPSIS
SHOW POOL_VERSION
DESCRIPTION
SHOW POOL_VERSION displays a string containing the Pgpool-II release number. Here is an example session: test=# show pool_version; pool_version -------------------------- 3.6.0 (subaruboshi) (1 row)