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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> </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"'>
</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> </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"'>
</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> </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"'>
</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’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 can’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> </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> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </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> </o:p></p>
<p class=MsoNormal>Hi,<o:p></o:p></p>
<p class=MsoNormal><o:p> </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. This RFC proposes APIs for retrieving feature class
information without having to perform a full DescribeSchema. The main
benefit will be improved performance in applications connecting to RDBMS
datasources. 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> </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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