Postgres Pro Enterprise : Documentation: 16: pgpro_controldata : Postgres Professional

pgpro_controldata
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pgpro_controldata

pgpro_controldata — display control information of a PostgreSQL/Postgres Pro database cluster and compatibility information for a cluster and/or server

Synopsis

pgpro_controldata [option...]

Description #

pgpro_controldata prints control information, such as the catalog version, initialized by initdb command of any PostgreSQL/Postgres Pro server. It also shows information about write-ahead logging and checkpoint processing. This information is cluster-wide and not specific to any database.

pgpro_controldata also helps to check compatibility between PostgreSQL/Postgres Pro database servers and clusters. It can print server or cluster parameters that can affect the compatibility and check whether a cluster and server are compatible by comparing those parameters.

pgpro_controldata is provided with Postgres Pro Enterprise as a separate pre-built package pgpro-controldata (for the detailed installation instructions, see Chapter 17).

Options #

pgpro_controldata accepts the following command-line arguments. If no arguments are specified, pgpro_controldata just prints the control information like pg_controldata does. Note that compatibility-related command-line arguments -P and -S specified together work the same way as -C.

General-Purpose #

-B --bindir: Specifies the PostgreSQL/Postgres Pro executable directory, needed to get server compatibility parameters.
-D datadir --pgdata=datadir: Specifies the file system location of the database configuration files. If this option is omitted, the environment variable PGDATA is used.
-V --version: Print the pgpro_controldata version, then exit.
-? --help: Show help about pgpro_controldata command-line arguments, then exit.

Compatibility-Related #

-C --compatibility-check

Display all parameters that can affect compatibility between the specified server and cluster and check whether they are compatible.

Use the -D option or the environment variable PGDATA to provide the path to the data directory, where read access is required.

If the -B option is omitted, the current server is assumed.

The cluster data and the server must have the same byte order and architecture type for this option to work correctly.

-P --cluster-compatibility-params

Display all parameters of the specified cluster that can affect the compatibility.