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<p class=MsoNormal><span style='color:#1F497D'>Hi Ronnie,<o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'><o:p>&nbsp;</o:p></span></p>

<p class=MsoListParagraph style='margin-left:18.0pt;text-indent:-18.0pt;
mso-list:l0 level1 lfo2'><![if !supportLists]><span style='color:#1F497D'><span
style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span></span><![endif]><span style='color:#1F497D'>I think it is very
important to implement in same way for non-rdbms or rdbms provider whenever it
is possible ( regardless of if there is speed improvement or not)<o:p></o:p></span></p>

<p class=MsoListParagraph style='margin-left:18.0pt'><span style='color:#1F497D'>I
think in this case this new interface can be implemented for non-RDBMS
providers too.<o:p></o:p></span></p>

<p class=MsoListParagraph style='margin-left:18.0pt'><span style='color:#1F497D'><o:p>&nbsp;</o:p></span></p>

<p class=MsoListParagraph style='margin-left:18.0pt;text-indent:-18.0pt;
mso-list:l0 level1 lfo2'><![if !supportLists]><span style='color:#1F497D'><span
style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span></span><![endif]><span style='color:#1F497D'>How would
application knew which FDO Schema name to set before calling </span><span
lang=EN style='color:black'>FdoIEnumerateFeatureClasses</span><span lang=EN
style='color:#1F497D'> </span><span style='color:#1F497D'>interface ?<o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'><o:p>&nbsp;</o:p></span></p>

<p class=MsoListParagraph style='margin-left:18.0pt;text-indent:-18.0pt;
mso-list:l0 level1 lfo2'><![if !supportLists]><span style='color:#1F497D'><span
style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span></span><![endif]><span style='color:#1F497D'>I am not sure how much
applications would really benefit from this. There were big speed problems with
DescribeSchema but I don&#8217;t think it is problem with Describe Schema itself.
I think MapGuide as application was problem, calling DescribeSchema in too many
functions. <br>
Than providers created cache of it instead of application using it in more
optimized way. Now application &nbsp;can&#8217;t get new schema even if
application would request for it. You need to restart server.<o:p></o:p></span></p>

<p class=MsoListParagraph><span style='color:#1F497D'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'>Haris<o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'><o:p>&nbsp;</o:p></span></p>

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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
fdo-internals-bounces@lists.osgeo.org
[mailto:fdo-internals-bounces@lists.osgeo.org] <b>On Behalf Of </b>Ronnie Louie<br>
<b>Sent:</b> Wednesday, July 09, 2008 7:01 PM<br>
<b>To:</b> fdo-internals@lists.osgeo.org<br>
<b>Subject:</b> [fdo-internals] RFC 23 for Review<o:p></o:p></span></p>

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<p class=MsoNormal><o:p>&nbsp;</o:p></p>

<p class=MsoNormal>Hi,<o:p></o:p></p>

<p class=MsoNormal><o:p>&nbsp;</o:p></p>

<p class=MsoNormal>RFC 23 (<a href="http://trac.osgeo.org/fdo/wiki/FDORfc23">http://trac.osgeo.org/fdo/wiki/FDORfc23</a>)
has been posted.&nbsp; This RFC proposes APIs for retrieving feature class
information without having to perform a full DescribeSchema.&nbsp; The main
benefit will be improved performance in applications connecting to RDBMS
datasources.&nbsp; Please review the proposal and reply to this list with your
comments by July 15, 2008.<o:p></o:p></p>

<p class=MsoNormal><o:p>&nbsp;</o:p></p>

<p class=MsoNormal>Thanks<o:p></o:p></p>

<p class=MsoNormal>Ronnie<o:p></o:p></p>

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