PgHosts

Started by Medi Montaseriabout 23 years ago2 messagesgeneral
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#1Medi Montaseri
medi.montaseri@intransa.com

I posted this question a few days ago when people were talking about PG
7.4 (or later)
features....but I guess it was not posted (processed, etc)...so here it
is again...

I am wondering if it is possible for Pg to support a feature (as in
Informix) where
I can have a host mapping configuration file such that

db = { host, database }
or
schema = { host, database, schema}
or
table = { host, database, schema, table }

Currently one has to resolve (or switch) at connect time where to
connect to, but with this
switching layer, the application can help out a bit on the HA...

Thanks

#2Bruce Momjian
bruce@momjian.us
In reply to: Medi Montaseri (#1)
Re: PgHosts

Actually, we do have that on the client end with pg_service.conf. It
wasn't documented in current releases but will be in 7.4. Documentation
is:

<term><literal>service</literal></term>
<listitem>
<para>
Service name to use for additional parameters. It specifies a service
name in pg_service.conf that holds additional connection parameters.
This allows applications to specify only a service name so connection parameters
can be centrally maintained. See
<filename><replaceable>PREFIX</>/share/pg_service.conf.sample</> for
information on how to set up the file.
</para>

I am attaching the pg_services.conf.sample file that will appear in 7.4.
It only does connection params, not schema/table stuff.

---------------------------------------------------------------------------

Medi Montaseri wrote:

I posted this question a few days ago when people were talking about PG
7.4 (or later)
features....but I guess it was not posted (processed, etc)...so here it
is again...

I am wondering if it is possible for Pg to support a feature (as in
Informix) where
I can have a host mapping configuration file such that

db = { host, database }
or
schema = { host, database, schema}
or
table = { host, database, schema, table }

Currently one has to resolve (or switch) at connect time where to
connect to, but with this
switching layer, the application can help out a bit on the HA...

Thanks

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Attachments:

/u/pg/share/pg_service.conf.sampletext/plainDownload