[development] multisite shared table upgrade enhancements (was what would be more useful)

[Chris Johnson]

Daniel Convissor wrote:
> Hi:

> 2) Droping columns isn't being done for pgsql because it didn't support 
> doing so prior to 7.4.  I'd like to add a database version check inside 
> update.inc.  I'm planning on adding the version discovery solely to 
> /update.php.  But I'm wondering if the core folks think would find it 
> useful (and worth the cost) to add it for all connections via 
> /includes/database.*.inc?

Maybe we should just drop support for Postgresql 7.3 and earlier.  7.4 was 
released 2003-11-17, so it's over 2 years old now.  The current production 
release is 8.1, although 8.0, 7.4 and 7.3 all appear to be supported by the 
Postgres folks as well.

Does anyone know of a good reason to maintain support for 7.3 and earlier? 
Dropping 7.3 seems like it would solve this problem with dropping columns, and 
probably a few other problems as well.

..chris