synchronize DTAP

[Willy-Bas Loos]

Hi,

We have an environment that has a central repository for lookups, which is
replicated to several databases, ech for different applications.
This has been arranged in a DTAP manner.

Sometimes it is necessary to synchronize the lookups of one of the DTAP
branches with another. But i can't just overwrite one database with a dump
from another branch, as the consumer databases will not follow.
What i think i need is a way to compute the differences between two
databases that have the same schema, and generate insert/update/delete
statements from that.

Since this seems as a pretty generic problem, i thought that i should ask
around before i start writing my own scripts. Does anyone know of script or
application that does this?

Cheers

[Brent Wood]

Gidday,


There was an interesting presentation at the Portland Postgres Users Group meeting in early Sept, from a guy who demo'd a Postgres database mounted as a FUSE filesystem. Not production ready, but with tables manifesting as directories, databases could be synch'ed using filesystem tools like rsynch - which offers intriguing backup & replication possibilities.


http://vimeo.com/105493143


the demo of the FUSE functionality starts at 39 minutes into the presentation.


Brent Wood

Programme leader: Environmental Information Delivery
NIWA
DDI: [phone]

Brent Wood
Principal Technician - GIS and Spatial Data Management
Programme Leader - Environmental Information Delivery
[phone] | 301 Evans Bay Parade, Greta Point, Wellington | www.niwa.co.nz<http://www.niwa.co.nz>
[NIWA]<http://www.niwa.co.nz>
________________________________
From: pgsql-general-***@postgresql.org <pgsql-general-***@postgresql.org> on behalf of Willy-Bas Loos <***@gmail.com>
Sent: Tuesday, September 30, 2014 8:58 PM
To: pgsql-***@postgresql.org
Subject: [GENERAL] synchronize DTAP


Hi,

We have an environment that has a central repository for lookups, which is replicated to several databases, ech for different applications.
This has been arranged in a DTAP manner.

Sometimes it is necessary to synchronize the lookups of one of the DTAP branches with another. But i can't just overwrite one database with a dump from another branch, as the consumer databases will not follow.
What i think i need is a way to compute the differences between two databases that have the same schema, and generate insert/update/delete statements from that.

Since this seems as a pretty generic problem, i thought that i should ask around before i start writing my own scripts. Does anyone know of script or application that does this?

Cheers