Newsgroups: php.internals Path: news.php.net Xref: news.php.net php.internals:14757 Return-Path: Mailing-List: contact internals-help@lists.php.net; run by ezmlm Delivered-To: mailing list internals@lists.php.net Received: (qmail 57882 invoked by uid 1010); 9 Feb 2005 16:48:17 -0000 Delivered-To: ezmlm-scan-internals@lists.php.net Delivered-To: ezmlm-internals@lists.php.net Received: (qmail 57848 invoked from network); 9 Feb 2005 16:48:17 -0000 Received: from unknown (HELO lists.php.net) (127.0.0.1) by localhost with SMTP; 9 Feb 2005 16:48:17 -0000 X-Host-Fingerprint: 64.233.184.194 wproxy.gmail.com Linux 2.4/2.6 Received: from ([64.233.184.194:60604] helo=wproxy.gmail.com) by pb1.pair.com (ecelerity HEAD (r4105:4106)) with SMTP id 73/2F-24923-FCE3A024 for ; Wed, 09 Feb 2005 11:48:16 -0500 Received: by wproxy.gmail.com with SMTP id 63so122026wri for ; Wed, 09 Feb 2005 08:48:06 -0800 (PST) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:reply-to:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:references; b=Qk134eLbbL5D4kBZaNDx2YzeGlo5IiDRnLBxPYZ7kCJhRmjTD2NfpvuUIH1cTsT39m0kxvmVd3dBIPmUciEiS7jsIxwn9nGz5ARslkKFGeIhlLwK3p2kuy/qOmBBa8tkXYw2XXOqsvHxxvNAklUIFrq7l9F3/Rui2v0ElVY6wfQ= Received: by 10.54.59.6 with SMTP id h6mr325875wra; Wed, 09 Feb 2005 08:41:26 -0800 (PST) Received: by 10.54.59.22 with HTTP; Wed, 9 Feb 2005 08:41:26 -0800 (PST) Message-ID: <4e89b42605020908416598396f@mail.gmail.com> Date: Wed, 9 Feb 2005 11:41:26 -0500 Reply-To: Wez Furlong To: Lester Caine Cc: internals@lists.php.net In-Reply-To: <20050209162402.13541.qmail@lists.php.net> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit References: <4e89b42605020821554c1ba198@mail.gmail.com> <20050209083714.12464.qmail@lists.php.net> <4e89b42605020907043c839b71@mail.gmail.com> <20050209162402.13541.qmail@lists.php.net> Subject: Re: [PHP-DEV] Re: [PECL-DEV] Re: Announce: PDO beta releases From: kingwez@gmail.com (Wez Furlong) Please read the various links that I posted in the announcement; they explain a number of design goals about PDO (particularly the OTN article) that will answer your questions in more detail. Here are some quick answers: On Wed, 09 Feb 2005 16:28:38 +0000, Lester Caine wrote: > How are Blob references handled? As streams. This is still not fully supported in all places yet; it should have better support and docs over this next week. > Sequence management? None. > No Caching? None. > How do we access metadata? There are methods. > LIMIT/FIRST management in SQL? None. Consider scrollable cursors as an alternative for databases that don't have LIMIT/FIRST. > I start with a check that the tables I need exist, independent of the > different SQL requirements of the different engines. On a quick > overview, there is nothing to replace MetaTables() ? > ADOdb makes differences in SQL formats between databases transparent, is > that something that PDO will address? No. That is something for another layer. PDO is intended to be a very light layer with minimal interference. > The other area is transparent creation of databases independent of engine. > What I am seeing at the moment is only a subset of the problem addressed. Not in this release of PDO. --Wez.