Walter,
there are few reasons:
a) MVCC engine never block records - it just can't :)
b) the only way to disable concurrent updates of the same record is... update
:)
More exactly: engine must mark primary record version by current transaction
and
it will make concurrent writes wait or
Thank you for your explanation Vlad, the proccess is more clear for me now.
Greatings.
Walter.
On Mon, Dec 29, 2014 at 4:55 AM, hv...@users.sourceforge.net
[firebird-support] firebird-support@yahoogroups.com wrote:
Walter,
there are few reasons:
a) MVCC engine never block records - it
Hi,
I have a table with four check constraints, which basically check
logical conditions between its fields.
In order to enforce those constraints, Firebird creates behind the
scenes two triggers for each one of them (I suppose one for update and
the other for insert operation). So in this
Hi!
I am having trouble with one installation of my application: Whenever I
try to create a table, I receive error 335544351 unsuccessful metadata
update\nrequest depth exceeded. (Recursive definition?). I cannot
figure what could possibly be causing this, as the CREATE TABLE
statement is
