Re: [Firebird-devel] Planning the post v3 development

[Adriano d. S. F. <adr...@gm...>]

On 28-04-2014 19:02, Dimitry Sibiryakov wrote:
> 28.04.2014 23:21, Claudio Valderrama C. wrote:
>> I know people will feel outraged with my opinion, but anyway: make DDL
>> operations atomic and immediate. Uncommitted DDL and DML working in unison
>> with stable DB structure is a naive dream, period.
> 
> I may be wrong as often, but AFAIU this dream may be a reality if:
> 
> 1) Eliminate DFW
> 2) Perform DDL (operations with system tables) in user transaction
> 3) Make garbage collector to handle system tables well
> 
> MVCC will do the rest automagically.
> 

Not so simple.

With the current way that Firebird validate objects, not (or trying)
allowing invalid interdependencies after commit, you'll not be able to
do changes.

Auto-commit DDL requires object invalidation.


Adriano