On 08/24/2011 08:43 PM, Josh Berkus wrote:
On 8/23/11 1:30 PM, Andrew Dunstan wrote:
Attached is an undocumented patch that allows pg_restore to omit
post-data items or omit all but post-data items. This has been discussed
before, and Simon sent in a patch back on 2008, which has bitrotted
some. I'm not sure why it was dropped at the time, but I think it's time
to do this. This patch relies on some infrastructure that was added
since Simon's patch, so it works a bit differently (and more simply).
If it's not clear from Andrew's description, the purpose of this patch
is to allow dividing your pgdump into 3 portions:
1. schema
2. data
3. constraints/indexes
This allows users to implement a number of custom solutions for ad-hoc
parallel dump, conditional loading, data munging and sampled databases.
While doing so was possible before using the manifest from pg_restore
-l, the manifest approach has been complex to automate and relies on
obscure knowledge.
I have immediate production use for this patch and may be backporting it.
It's already backported, at least as far as 8.4. Check your email :-)
cheers
andrew
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