On 6/2/05, GamblerZG <[EMAIL PROTECTED]> wrote:
> When you have objects stored on disk, it's usually very convenient to
> read them on demand. However, MySQL is clearly not meant for this
> purpose.

A serialized PHP object is just a string of data.  MySQL is a very
fast `data`base, so I don't quite understand this statement.

> Query overhead, complexity of SQL needed, and some other
> limitation make object storage and retrieval a headache.

Did you have some code that you need help debugging?

> The question is, is it possible to write reasonably efficient OO
> database in php?

I don't use objects in web applications.  In my experience the
overhead involved in creating an object for the extremely short
lifetime it has is overkill.

> Two main factors would be:
> 1) Is is possible to make fast B-tree index search without writing any C
> code?

MySQL supports btree indexes for MyISAM and InnoDB table types.

> 2)How long does it takes for PHP to open 1 file? (It will need to open
> hundreds of them.)

Depends on your hardware, not so much PHP.


-- 
Greg Donald
Zend Certified Engineer
http://destiney.com/

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