On 09/29/2011 08:20 AM, Bruce Momjian wrote:
> 1 document the limitation and require users to use symlinks
> 2 add a --old/new-configdir parameter to pg_upgrade
> 3 have pg_upgrade find the real data dir by starting the server
> 4 add a flag to some tool to return the real data dir, and backpatch
5. (really 3a). Have pg_upgrade itself check the specified --XXX-datadir
for postgresql.conf and use the data_directory setting therein using the
same rules as followed by the server.
This would mean that there are no new options to pg_upgrade and that
pg_upgrade operation would not change when postgresql.conf is in the
data-directory. This would also make it consistent with PostgreSQL's
notion of file-locations:
"If you wish to keep the configuration files elsewhere than the data
directory, the postgres -D command-line option or PGDATA environment
variable must point to the directory containing the configuration files,
and the data_directory parameter must be set in postgresql.conf..."
So for backporting, it could just be considered a "bug fix" that aligns
pg_upgrade's interpretation of datadir to that of the server.
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