Thread: Postgres 8.5 partitioning

We are planning on deploying postgres 8.4 in a month or two to
production. From the expected feature list for 8.5, I have seen one on
simplified table partitioning.

Will 8.5  have table partitions as first-class objects (i.e not
inheritted tables..but partitions)

Also..will 8.5 have a migration option to future releases without
dump/restore (e.g 8.5 to 9 )

If so, we may consider waiting.

Thank you

Sriram

On Fri, 2010-04-23 at 13:27 -0700, Anj Adu wrote:
> We are planning on deploying postgres 8.4 in a month or two to
> production. From the expected feature list for 8.5,

It is already 9.0.

> I have seen one on simplified table partitioning.
>
> Will 8.5  have table partitions as first-class objects (i.e not
> inheritted tables..but partitions)

No. That patch was not added to 9.0:

https://commitfest.postgresql.org/action/patch_view?id=266

> Also..will 8.5 have a migration option to future releases without
> dump/restore (e.g 8.5 to 9 )

There is no such built-in functionality. However, probably pg_migrator
will be available for 9.0, too.

To sum up: 9.0 has big features, like replication, etc. IMHO it won't be
production ready for a few months after it is released (yeah, I'm a bit
optimistic here). So you should stick to 8.4 for now.
--
Devrim GÜNDÜZ
PostgreSQL Danışmanı/Consultant, Red Hat Certified Engineer
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Community: devrim~PostgreSQL.org, devrim.gunduz~linux.org.tr
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Anj Adu wrote:
> Will 8.5  have table partitions as first-class objects (i.e not
> inheritted tables..but partitions)
>

What was originally going to be 8.5 was renumbered to be 9.0.  None of
the planned partitioning improvements are included in it.  The changes
planned there aren't a large as you seem to think they are though.
Partitions will still be inherited tables, the improvements are just
going to reduce the amount of setup/trigger code you need to write and
make management tasks easier.

--
Greg Smith  2ndQuadrant US  Baltimore, MD
PostgreSQL Training, Services and Support
greg@2ndQuadrant.com   www.2ndQuadrant.us