Firebird 2.1.2 Changes in Ubuntu Karmic and Debian

New packages for Ubuntu karmic and debian unstable are released with security and bug fixes
Here is the change log for the firebird2.1 (2.1.2.18118-0.ds1-4) package in Ubuntu Karmic and Debian Unstable and Testing :

* add patch from upstream CVS fixing denial of service (daemon crash)
via a malformed op_connect_request message (CVE-2009-2620)
Closes: #539478. Thanks to Giuseppe Iuculano
* rules: disable parallel MAKE
the targets are now chained so no simultaneous satisfaction of classic and
super build can commence. also, upstream sources aren’t to be made in
parallel so pass -j1
Closes: #538870. Thanks to Bastian Blank

Firebird – query to show which fields in your database are not based on a domain

Our strategy is that in all of our InterBase and Firebird databases, the column definitions are based on domains.

But some of our databases do not have that for all columns (usually because we got involved later in the development cycle).

When you forget to define a column based on a domain, then both InterBase and Firebird will create a new system domain on the fly that starts with ‘RDB$’.
So if you forget, you get a new system domain for every column!

The below query will list those columns.

Cache flushes to disk and Firebird

Paul Beach wrote on his Blog
The following fragment of a message appeared on the Firebird development list. As the question and answer are interesting, I thought I would put it on the blog.

“If I want to make cache flushes to disk very rare, do I set MaxUnflushedWrites & MaxUnflushedWriteTime to -1 or to some large value?
What other settings adjustments can make table flushes to disk more rare?
Is there any combination of settings that will keep the entire db in cache and never flush it to disk?”

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