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PG_CONTROLDATA(1)	PostgreSQL 9.6.19 Documentation	     PG_CONTROLDATA(1)

NAME
       pg_controldata -	display	control	information of a PostgreSQL database
       cluster

SYNOPSIS
       pg_controldata [option] [[-D] datadir]

DESCRIPTION
       pg_controldata prints information initialized during initdb, such as
       the catalog version. It also shows information about write-ahead
       logging and checkpoint processing. This information is cluster-wide,
       and not specific	to any one database.

       This utility can	only be	run by the user	who initialized	the cluster
       because it requires read	access to the data directory. You can specify
       the data	directory on the command line, or use the environment variable
       PGDATA. This utility supports the options -V and	--version, which print
       the pg_controldata version and exit. It also supports options -?	 and
       --help, which output the	supported arguments.

ENVIRONMENT
       PGDATA
	   Default data	directory location

PostgreSQL 9.6.19		     2020		     PG_CONTROLDATA(1)

NAME | SYNOPSIS | DESCRIPTION | ENVIRONMENT

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