Re: pg_dump schema breakup

Andrew Dunstan wrote:
> Joshua D. Drake wrote:
> >
> >>>>I think what you may really be after is "the stuff that should be
> >>>>loaded
> >>>>before inserting data" and "the stuff that should be loaded after",
> >>>>but
> >>>>the above are poor names for these concepts.
> >>>>
> >>>
> >>>But it certainly would be nice to be able to dump all that "stuff":-)
> >>Yea, I've been told that this would not be a high demand feature. So
> >>do I have a second vote? ;-)
> >
> >The ability to have a dump that automatically separated the
> >before-data and after-data objects is definitely
> >useful. The amount of times I have had to dump the schema and data
> >separately just so I can modify the
> >schema before restore, or disable some function that is causing
> >problems can not even be counted.
> >
>
> We already have a highly selective and configurable restore mechanism,
> using the -L feature of pg_restore. Maybe there's a good special case
> for this particular split, but it is hardly undoable now.
>
> As for Naz' needs - I gave him a perl script I whipped up in few minutes
> to do the split he wanted - and I'm sure you could do the same in python ;-)

Maybe what we need is a program to process the object list from
pg_restore -L. Or a mode in pg_restore, "from this dump give me all
the sutff to be loaded before inserting data", and the reverse.

I mean, should the problem be attacked while dumping, or while
restoring?

--
Alvaro Herrera http://www.CommandPrompt.com/
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