| From: | Andrew Dunstan <andrew(at)dunslane(dot)net> |
|---|---|
| To: | Simon Riggs <simon(at)2ndquadrant(dot)com> |
| Cc: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: pg_dump additional options for performance |
| Date: | 2008-02-06 15:47:58 |
| Message-ID: | 47A9D6AE.4090807@dunslane.net |
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| Lists: | pgsql-hackers |
Simon Riggs wrote:
> My proposal is to provide two additional modes:
> --schema-pre-load corresponding to (1) above
> --schema-post-load corresponding to (3) above
>
> This would then allow this sequence of commands
>
> pg_dump --schema-pre-load
> pg_dump --data-only
> pg_dump --schema-post-load
>
> to be logically equivalent, but faster than
>
> pg_dump --schema-only
> pg_dump --data-only
>
It would actually be better, as well as faster, because it will be
guaranteed to work :-) There are known cases where schema-only followed
by data-only fails.
One more note: we need to make sure the corresponding new modes are also
added to pg_restore.
cheers
andrew
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