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<p class=MsoPlainText><font size=3 face=Arial><span style='font-size:12.0pt'>Hi,
<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=3 face=Arial><span style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoPlainText><font size=3 face=Arial><span style='font-size:12.0pt'>As
suggested in the Mondrian spec, <i><span style='font-style:italic'>mondrian.rolap.aggregates.ChooseByVolume</span></i>
determines whether to choose aggregate tables based on volumn or rows. My
question is that <b><span style='font-weight:bold'>is there any study on this
property to tell which method (ByVolumn or ByRows) to choose aggTables is
better under which circumstances</span></b>? If so, has Mondrian been evaluated
against this property? What is the result like? This information would be quite
useful when coming to tuning Mondrian for selecting aggregate tables?<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=3 face=Arial><span style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoPlainText><font size=3 face=Arial><span style='font-size:12.0pt'>Can
anybody shed some light on this? I would be greatly appreciative if you could
help.<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=3 face=Arial><span style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoPlainText><font size=3 face=Arial><span style='font-size:12.0pt'>Thanks<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=3 face=Arial><span style='font-size:12.0pt'>Jie<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=3 face=Arial><span style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoPlainText><font size=3 face=Arial><span style='font-size:12.0pt'>===================<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=3 face=Arial><span style='font-size:12.0pt'>Jie
Wu<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=3 face=Arial><span style='font-size:12.0pt'>FIT
410, The <st1:place w:st="on"><st1:PlaceType w:st="on">University</st1:PlaceType>
Of <st1:PlaceName w:st="on">Memphis</st1:PlaceName></st1:place><o:p></o:p></span></font></p>
<p class=MsoPlainText><st1:place w:st="on"><st1:City w:st="on"><font size=3
face=Arial><span style='font-size:12.0pt'>Memphis</span></font></st1:City>, <st1:State
w:st="on">TN</st1:State>, <st1:PostalCode w:st="on">38111</st1:PostalCode>, <st1:country-region
w:st="on">USA</st1:country-region></st1:place><o:p></o:p></p>
<p class=MsoPlainText><font size=3 face=Arial><span style='font-size:12.0pt'>www.jiewu.info<o:p></o:p></span></font></p>
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