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PG_CONTROLDATA(1)


NAME

  pg_controldata - display server-wide control information


SYNOPSIS

  pg_controldata [ datadir ]


DESCRIPTION

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

  This utility may only be run by the user who installed the server because
  it requires read access to the datadir.  You can specify the data directory
  on the command line, or use the environment variable PGDATA.


ENVIRONMENT

  PGDATA
       Default data directory location

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