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<p class="MsoNormal"><span style="color:#1F497D">I found this:<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" style="background:#FBFBFB;border:none;padding:0cm"><span style="font-size:9.0pt;font-family:"Lucida Console";color:black;mso-fareast-language:EN-NZ">SELECT column FROM table<o:p></o:p></span></p>
<p class="MsoNormal" style="background:#FBFBFB;border:none;padding:0cm"><span style="font-size:9.0pt;font-family:"Lucida Console";color:black;mso-fareast-language:EN-NZ">LIMIT N OFFSET offset<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Increment offset by index*N in the loop to fetch N records at a time.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">But the remaining question is how do I do this using kamailio’s MySQL driver? Raw query?<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">Allen<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 lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-language:EN-NZ">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-language:EN-NZ"> Allen
Zhang <br>
<b>Sent:</b> Thursday, 5 June 2014 12:19 p.m.<br>
<b>To:</b> 'sr-users@lists.sip-router.org'<br>
<b>Subject:</b> MySQL query result pagination<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">When an user does a REGISTER and has a large number of msilo messages stored, say 7k, kamailio server easily runs out of private memory when trying to allocate memory to the result set. I know I can set a max on the messages a user can
store, but I’d like to support a crazy number like 7k messages.<o:p></o:p></p>
<p class="MsoNormal">I’m trying to introduce paging to the query. So that I can process N number of results at one time.<o:p></o:p></p>
<p class="MsoNormal">I can’t find an easy way of doing this with the current MySQL driver. The
<b><span style="font-size:10.0pt;font-family:Consolas;color:black;background:silver;mso-highlight:silver">db_mysql_query</span></b><b><span style="font-size:10.0pt;font-family:Consolas;color:black">()
</span></b>function doesn’t have built-in paging and with this function it’s not easy to build a complex query like this:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Select * from silo where …(the matching algorithm) AND id > lower_limit AND id < higher_limit, ordered by id.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Is there a way to do this? Or maybe I’m on the wrong track and there is already a solution to this problem?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Regards,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Allen Zhang<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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