You are referring to this generic wiki about partitioned data, but are you
specifically talking about MySQL as your target? The reason I ask is
because some databases have built in concepts of sharding and routing. And
also some databases may use row locking instead of table locking. Maybe it
is best to investigate the right database for your needs before looking at
trying to implement a manual mysql partitioning abstraction?

I agree about some of the advantages, but I wonder if they outweigh the
disadvantages. It would mean that each time you create a new project, a new
database must be created before applications will be able to function. And
you have to maintain your own routing logic, which may or may not be a big
deal at all.

Has it proven difficult to extract a single projects data set for backups,
just using queries? And is your project dataset so large that it needs to
be off-lined with each final project?
hey :)

Question what you think/know about Horizontal Partitioning of each project
data into a "shard" database?
distributed project database in a sense that all the project have the same
scheme But they have separated database.
http://en.wikipedia.org/wiki/Partition_(database)

for example projectA have tables (Shot, Asset) and projectB have the same
tables with the same fields,
but projectA and projectB are on different database or even servers.

And using a common lookup project table, you can find which project points
to which database, for you code to work with

Why we're thinking about it?
having each project individual database have some advantages:
- easier to backup and restore ( much smaller set of data )
- easier to archive together with the entire project files ( cause that DB
is isolated from the rest of the projects data )
- less table locking wait time, cause each project have different database
and tables

badness coming from this?
- complexity ... each item needs a unique_id across all the tables,
something like ( projectID_ID )
- complexity ... where do you store common tables ( Users for example )
- you can't do "join" across databases... do get all artists Tasks across
shows become multiple queries, one per project

any thoughts?

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