On Tue, 2002-08-13 at 07:49, Oleg Bartunov wrote:
> We have a patch for pg_dump which adds a possibility to dump
> a part of table, for example:
> 
> dump Top.Science.Astronomy heirarchy from dmoz catalog
> 
> pg_dump -d -t dmoz -w "select * from dmoz where path <@ 'Top.Science.Astronomy'" dmoz
> 
> We found it's very useful. We'd like to extend it to use also with COPY
> but it has no support for select (of course it will works only for
> special case when ALL columns retrieved).
> 
> The question is: Is't worth to submit patch for pg_dump and look into
> copy code ?

I've been asked by co-workers for information on how to do this type of
thing.  They do partial table dumps to a development system for the
purpose of finding / eliminating bugs.

That said, it may be smart to make the 'select * from <table>' part
yourself, and let the user supply a where clause.



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