SQL & merge [was Re: Welcome back]

[Wiggins d Anconia]

> 
> 
> An earlier thread voiced concerns about undo for SQL backends.
> If an SQL db can support transactions, then there already is a 
> natural undo mechanism.   Postgress supports this, I don't think
> mysql does.  
>

MySQL does, depending on the version and table type used.  Just an FYI
for those interested:

http://dev.mysql.com/doc/mysql/en/ANSI_diff_Transactions.html#IDX134

<snip>

Might be too much of a hassle to mess with, though I am really a Perl
developer and not sure how that would be decided in a C world.

http://danconia.org