pg_controldata
pg_controldata
pg_controldata - display control information of a PostgreSQL database cluster
Synopsis
pg_controldata
[
option
] [[
--pgdata
|
-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
-
PG_COLOR -
Specifies whether to use color in diagnostics messages. Possible values are
always,auto,never.