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pg_controldata(1)        PostgreSQL 12.6 Documentation       pg_controldata(1)




NAME

       pg_controldata - display control information of a PostgreSQL database
       cluster


SYNOPSIS

       pg_controldata [option] [[-D | --pgdata]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

       PG_COLOR
           Specifies whether to use color in diagnostic messages. Possible
           values are always, auto and never.



PostgreSQL 12.6                      2021                    pg_controldata(1)

postgresql 12.6 - Generated Tue Feb 16 10:08:37 CST 2021
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