pgcharts(1) PostgreSQL data loader


pgcharts [options] [command-file]...


pgcharts is The PostgreSQL Extension Installer server.


-h, --help
Show command usage summary and exit.
-V, --version
Show pgcharts version string and exit.
-c, --config
Use the given configuration file (default to "~/.pgcharts.ini").


The pgcharts binary allows running and controling the pgcharts embedded web server.


While it's possible to ship a configuration file or to prepare it by hand, the following commands allow to control the setup from the command line.
config [ name ] [ value ]
Without arguments, print the whole configuration file content. When given a variable name, print its current value. When given both a name and a value, set the configuration variable to the given value.
config get <name>
Print the current value of the configuration variable name.
config set <name> <value>
Set the variable name to the given value.


The PostgreSQL Extension Installer comes with a PostgreSQL plugin that downloads static files: that part doesn't need any server at all. This server is meant to be used by maintainers of a set of extension archives, when they want to ease the maintenance and setup of the building.
Start the embedded pgcharts HTTP server on the port it's been setup to listen to, which defaults to 8042. The
Stops the server.
Print the result of querying the HTTP status API against the (hopefully) running server.
Print the registered pid of the server process. This information might be stale in case of unexpected termination of the server.
setup <dburi>
Connects to the PostgreSQL database specified with the dburi parameter and install the database model there.


Once pgcharts is properly setup (see the setup command above) then it's necessary to add databases against which you want to run queries and draw charts.
register <dburi>
Register given dburi.


The dburi connection string is expected to be given as a Connection URI as documented in the PostgreSQL documentation at


Can contain any character, including colon (:) which must then be doubled (::) and at-sign (@) which must then be doubled (@@).
When omitted, the user name defaults to the value of the PGUSER environment variable, and if it is unset, the value of the USER environment variable.
Can contain any character, including that at sign (@) which must then be doubled (@@). To leave the password empty, when the user name ends with at at sign, you then have to use the syntax user:@.
When omitted, the password defaults to the value of the PGPASSWORD environment variable if it is set, otherwise the password is left unset.
Can be either a hostname in dotted notation, or an ipv4, or an Unix domain socket path. Empty is the default network location, under a system providing unix domain socket that method is preferred, otherwise the netloc default to localhost.
It's possible to force the unix domain socket path by using the syntax unix:/path/to/where/the/socket/file/is, so to force a non default socket path and a non default port, you would have:
The netloc defaults to the value of the PGHOST environment variable, and if it is unset, to either the default unix socket path when running on a Unix system, and localhost otherwise.
Should be a proper identifier (letter followed by a mix of letters, digits and the punctuation signs comma (,), dash (-) and underscore (_).
When omitted, the dbname defaults to the value of the environment variable PGDATABASE, and if that is unset, to the user value as determined above.
The only optional parameter supported is sslmode and it accepts the values disable, allow, prefer and require.


Dimitri Fontaine [email protected]