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Posted to user@couchdb.apache.org by "Andrew Stuart (SuperCoders)" <an...@supercoders.com.au> on 2011/02/22 00:39:16 UTC

Is it possible to gather data from various databases into another?

Imagine an architecture in which there is a database per group  
discussion.

Each user has their own private database into which data is pulled out  
all the various discussion databases that they have access to.

Is there a mechanism in Couchdb to pull data from various databases  
into another one?

thanks

as
  
  

Re: Is it possible to gather data from various databases into another?

Posted by Janez Štupar <ja...@gmail.com>.
Well you can do anything really - just be careful so that you don't cause
too many replication conflicts and be careful with your replication filters.

On Tue, Feb 22, 2011 at 10:59 AM, Anup Bishnoi <pi...@gmail.com>wrote:

> And you can have a database replicate from two different databases or more.
> Right?
>

Re: Is it possible to gather data from various databases into another?

Posted by Anup Bishnoi <pi...@gmail.com>.
And you can have a database replicate from two different databases or more.
Right?

RE: Is it possible to gather data from various databases into another?

Posted by Nils Breunese <N....@vpro.nl>.
You are actually missing something. Replication is one way, both source and destination can be either local or remote and you can use arbitrary databases as source and destination.

Nils.
________________________________________
Van: Andrew Stuart (SuperCoders) [andrew.stuart@supercoders.com.au]
Verzonden: dinsdag 22 februari 2011 8:55
Aan: user@couchdb.apache.org
Onderwerp: Re: Is it possible to gather data from various databases into another?

The document you linked to suggests that replication is one to one,
from one database in one location to *the same* database in a
different location.

Unless I'm missing something I can't see how replication allows data
to come from multiple different databases into another database.

Any other ideas?

Thanks

On 22/02/2011, at 6:49 PM, Nils Breunese wrote:

How about Replication?

http://wiki.apache.org/couchdb/Replication

Nils.
________________________________________
Van: Andrew Stuart (SuperCoders) [andrew.stuart@supercoders.com.au]
Verzonden: dinsdag 22 februari 2011 0:39
Aan: user@couchdb.apache.org
Onderwerp: Is it possible to gather data from various databases into
another?

Imagine an architecture in which there is a database per group
discussion.

Each user has their own private database into which data is pulled out
all the various discussion databases that they have access to.

Is there a mechanism in Couchdb to pull data from various databases
into another one?

thanks

as


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Re: Is it possible to gather data from various databases into another?

Posted by "Andrew Stuart (SuperCoders)" <an...@supercoders.com.au>.
The document you linked to suggests that replication is one to one,  
from one database in one location to *the same* database in a  
different location.

Unless I'm missing something I can't see how replication allows data  
to come from multiple different databases into another database.

Any other ideas?

Thanks

On 22/02/2011, at 6:49 PM, Nils Breunese wrote:

How about Replication?

http://wiki.apache.org/couchdb/Replication

Nils.
________________________________________
Van: Andrew Stuart (SuperCoders) [andrew.stuart@supercoders.com.au]
Verzonden: dinsdag 22 februari 2011 0:39
Aan: user@couchdb.apache.org
Onderwerp: Is it possible to gather data from various databases into  
another?

Imagine an architecture in which there is a database per group
discussion.

Each user has their own private database into which data is pulled out
all the various discussion databases that they have access to.

Is there a mechanism in Couchdb to pull data from various databases
into another one?

thanks

as


------------------------------------------------------------------------
VPRO   www.vpro.nl
------------------------------------------------------------------------
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Message  protected by MailGuard: e-mail anti-virus, anti-spam and  
content filtering.http://www.mailguard.com.au/mg
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RE: Is it possible to gather data from various databases into another?

Posted by Nils Breunese <N....@vpro.nl>.
How about Replication?

http://wiki.apache.org/couchdb/Replication

Nils.
________________________________________
Van: Andrew Stuart (SuperCoders) [andrew.stuart@supercoders.com.au]
Verzonden: dinsdag 22 februari 2011 0:39
Aan: user@couchdb.apache.org
Onderwerp: Is it possible to gather data from various databases into another?

Imagine an architecture in which there is a database per group
discussion.

Each user has their own private database into which data is pulled out
all the various discussion databases that they have access to.

Is there a mechanism in Couchdb to pull data from various databases
into another one?

thanks

as


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 VPRO   www.vpro.nl
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Requesting explanation of terms in CouchOne announcement

Posted by "Andrew Stuart (SuperCoders)" <an...@supercoders.com.au>.
Hello

The CouchOne announcement http://www.membase.com/merger-technology-vision 
  refers to the following terms but there's not much to explain them:

** user code execution across database nodes with scatter-gather support
** multi point triggers

Can someone refer me to explanations of these terms please?

The announcement also refers to indexing and query support - does this  
mean in the future CouchDB will include more traditional types of  
field oriented indexes?

Thanks