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>31.16. The Connection Service File</A
></H1
><P
> The connection service file allows libpq connection parameters to be
associated with a single service name. That service name can then be
specified by a libpq connection, and the associated settings will be
used. This allows connection parameters to be modified without requiring
a recompile of the libpq application. The service name can also be
specified using the <TT
CLASS="ENVAR"
>PGSERVICE</TT
> environment variable.
</P
><P
> The connection service file can be a per-user service file
at <TT
CLASS="FILENAME"
>~/.pg_service.conf</TT
> or the location
specified by the environment variable <TT
CLASS="ENVAR"
>PGSERVICEFILE</TT
>,
or it can be a system-wide file
at <TT
CLASS="FILENAME"
>`pg_config --sysconfdir`/pg_service.conf</TT
> or in the directory
specified by the environment variable
<TT
CLASS="ENVAR"
>PGSYSCONFDIR</TT
>. If service definitions with the same
name exist in the user and the system file, the user file takes
precedence.
</P
><P
> The file uses an <SPAN
CLASS="QUOTE"
>"INI file"</SPAN
> format where the section
name is the service name and the parameters are connection
parameters; see <A
HREF="libpq-connect.html"
>Section 31.1</A
> for a list. For
example:
</P><PRE
CLASS="PROGRAMLISTING"
># comment
[mydb]
host=somehost
port=5433
user=admin</PRE
><P>
An example file is provided at
<TT
CLASS="FILENAME"
>share/pg_service.conf.sample</TT
>.
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