Hi,

I think there has been some talk about this missing feature since 2001, but anyway..

I have a database which contains about 500M rows and the nightly dump takes about six hours. Size of the compressed dump is ~30GB.

The biggest tables are:
              relname            |  reltuples
---------------------------------+-------------
 comment_archive                 | 2.45995e+08
 comment                         | 1.68875e+08

Comments are messages written by users and they are "partitioned" into two tables. New messages are always written to "comment" and once a month the oldest messages are moved to "comment_archive". For performance reasons neither of these tables have foreign keys.

Contents of "comment_archive" are quite static. It's frequently read but rarely written. Backup each night is quite useless and it steals time from other essential maintenance tasks.

The database contains several schemas and excluding "comment_archive" by moving it to different schema doesn't sound very convenient. pg_dump doesn't have an option to dump multiple schemas at once.

Are there any working "-X" patches for pg_dump or does anyone have other possible solutions?

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    ( oo )    Kari Lavikka - [EMAIL PROTECTED] - (050) 380 3808
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