Supported versions: Current (18) / 17 / 16 / 15 / 14

Development versions: 19 / 20devel

Unsupported versions: 13 / 12 / 11 / 10 / 9.6 / 9.5 / 9.4 / 9.3 / 9.2 / 9.1 / 9.0 / 8.4 / 8.3 / 8.2 / 8.1 / 8.0 / 7.4 / 7.3

Historical version. PostgreSQL 8.1 has reached end of support. See the current manual.

pg_controldata

Name

pg_controldata -- display control information of a PostgreSQL database cluster

Synopsis

pg_controldata [datadir]

Description

pg_controldata prints 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 cluster-wide, and not specific to any one database.

This utility may 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.

Environment

PGDATA: Default data directory location

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