PG_CONTROLDATA(1) PostgreSQL 18.6 Documentation PG_CONTROLDATA(1) NAME pg_controldata - display control information of a PostgreSQL database clus- ter 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 be- cause 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_con- troldata 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 18.6 2026 PG_CONTROLDATA(1)
NAME | SYNOPSIS | DESCRIPTION | ENVIRONMENT
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