Re: pg_dump of only the structure from a client such as ruby

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От Tom Lane
Тема Re: pg_dump of only the structure from a client such as ruby
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Msg-id 27857.1186360661@sss.pgh.pa.us
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Ответ на Re: pg_dump of only the structure from a client such as ruby  (Perry Smith <pedz@easesoftware.com>)
Ответы Re: pg_dump of only the structure from a client such as ruby
Re: pg_dump of only the structure from a client such as ruby
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Perry Smith <pedz@easesoftware.com> writes:
> I find it odd that you are resistant to the idea.  To me, the
> advantages are clear if it can be done without a tremendous amount of
> work.

Well, it can't.  pg_dump is an enormously complicated and frequently
changed bit of code, and so you really really don't want to be copying
it into other clients.

For a long time there's been occasional talk of refactoring pg_dump into
a library and wrapper program such that the library could be used by
other clients.  But that would be a large amount of work in itself,
especially if you hoped to design a library API that was rich enough
that it'd be meaningfully more flexible than pg_dump itself is.  Aside
from the sheer work involved, there's the danger of introducing bugs
into what is certainly a critical part of our infrastructure.  So it's
never gotten further than "wouldn't it be nice" discussions.

            regards, tom lane

PS: *please* see if you can get them to take out the usage of pg_dump's
-i switch.  Having code invoke that blindly borders on criminal
negligence.

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