Re: pearifying metabase: preparing phase 2
| From: | Tomas V.V.Cox | Date: | Mon, 04 Feb 2002 15:23:22 +0000 |
| Subject: | Re: pearifying metabase: preparing phase 2 | ||
| References: | 1 | Groups: | php.pear.dev |
| Request: | Send a blank email to pear-dev+get-4393@lists.php.net to get a copy of this message | ||
Lukas Smith wrote:
>
Hi again Lukas,
> Something that I would really like to see is a testing suite for PEAR DB
> so I can be sure that what I do remains compatible with the old PEAR DB.
> It might not even have to be totally complete as even some tests will
> make my life easier and my results more reliable. Thomas: you mentioned
> you had something like this? Especially since my work will not
> immediately replace PEAR DB this is generally a good idea to have and
> even a better idea to have if I do not succeed or get hit by a bus :-)
Is not my test suite :-) I've put instructions on how to run the tests
in the TESTERS document: php4/pear/DB/TESTERS (php.net CVS)
> One more question:
> Is the DB_result object really that useful to accept the overhead? I can
> obviously stick something like that in the final merged version or I can
> emulate this feature for PEAR DB compatibility mode. What were the
> reasons to do it (I assume extensibility)? Did they pay off? How
> strongly does everybody feel about this?
The DB_result is a good desing thing, but sadly it slows a lot the
execution because of the method calling overhead. Some time ago I did a
new test desing dropping DB_result, and the speed gain was amazing (~50%
faster). Finally I didn't change nothing waiting for the new Zend
Engine, but if that doesn't solve the speed problem my bet is for doing
the change (but that's other story :-).
In short for you, imo try to avoid using DB_result as an interface for
the driver.
Tomas V.V.Cox