Sorry Tom, I forgot to include pgsql-bugs in the email list...

Hi Tom,
Thanks for your answer.

Tom Lane a écrit :
phb.e...@free.fr writes:
When a table is registered as an extension configuration table and contains
a serial column, the current value of the sequence associated to this serial
column is not dumped by pg_dump.

I think the way to make that happen is to also register the sequence as
a configuration table of the extension.  It's not clear to me that that
should happen by default; it would depend a lot on how the extension
designer intends to manage modifications of the table.
OK, there may be cases when one doesn't want to restore the associated sequence value.
In such a case:
- either a function allows to register the serial sequence as a configuration table (your proposal), - or the serial sequence is implicitely considered as a configuration table, which would me more natural (see discussion for BUG #6683), and another function allows to removes this state.

Anyway, (and this is not strictly related to this bug report) there is a need: - for registering an independant sequence of an extension as "to be pg_dumped/restored", and - for unregistering a table and sequence that has been previously processed by pg_extension_config_dump (unless I miss the way to do this).

echo "--> And sequences cannot be registered as 'content to be dumped'"
$PGBIN/psql -ac "select
pg_catalog.pg_extension_config_dump('tbl1_col1_seq','');"

This test proves nothing of the kind.  Please read the error message:
ERROR:  pg_extension_config_dump() can only be called from an SQL script 
executed by CREATE EXTENSION
You have to do it in the extension's script.
You are right. My intent here was just to show that feeding the pg_extension_config_dump function with the sequence name is not a solution, ... in the current version at least.


Regards.
Philippe BEAUDOIN.




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