SHOW POOL_VERSION
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)