[mapserver-users] mapserver 5.6.0, RFC 52 and driver support

Lime, Steve D (DNR) Steve.Lime at state.mn.us
Tue Dec 22 17:17:52 EST 2009


Yup. What sort of an example would help?

-----Original Message-----
From: Brent Fraser [mailto:bfraser at geoanalytic.com] 
Sent: Tuesday, December 22, 2009 4:18 PM
To: Lime, Steve D (DNR)
Cc: mapserver-users at lists.osgeo.org
Subject: RE: [mapserver-users] mapserver 5.6.0, RFC 52 and driver support

I'd like to give the new-style approach a try, but the doc seems a little
thin.  You've talking about RFC 36 right?

> The new-style approach opens the template only once. That's not your
> bottleneck though I bet...
>
> -----Original Message-----
> From: Brent Fraser [mailto:bfraser at geoanalytic.com]
> Sent: Tuesday, December 22, 2009 3:34 PM
> To: Lime, Steve D (DNR)
> Cc: mapserver-users at lists.osgeo.org
> Subject: RE: [mapserver-users] mapserver 5.6.0, RFC 52 and driver support
>
>> What kind of templating are you using? The old-style stuff or the
>> new-style? How many results you talking?
>
> Old style.  Low 100's of records returned...
>
>>
>> -----Original Message-----
>> From: Brent Fraser [mailto:bfraser at geoanalytic.com]
>> Sent: Tuesday, December 22, 2009 3:10 PM
>> To: Lime, Steve D (DNR)
>> Cc: mapserver-users at lists.osgeo.org
>> Subject: RE: [mapserver-users] mapserver 5.6.0, RFC 52 and driver
>> support
>>
>> The strange thing is the image render is quick (a few seconds), but the
>> nquery+mapshape (rectangle) with the processing of the template is
>> several
>> minutes.  And while it opens/reads/closes the template file for each
>> record(!), I suspect the majority of the time is spent requesting the
>> record and dealing with the result.
>>
>> Ok, on goes the hacker suit...
>>
>> Thanks!
>> Brent
>>
>>> Probably a question better answered by OGR maintainers... In theory
>>> working off a single
>>> result set, even if you have to traverse it more than once, would be
>>> far
>>> more efficient
>>> than id-based lookups done now.
>>>
>>> Steve
>>>
>>> -----Original Message-----
>>> From: mapserver-users-bounces at lists.osgeo.org
>>> [mailto:mapserver-users-bounces at lists.osgeo.org] On Behalf Of Brent
>>> Fraser
>>> Sent: Tuesday, December 22, 2009 2:55 PM
>>> To: Lime, Steve D (DNR)
>>> Cc: mapserver-users at lists.osgeo.org
>>> Subject: RE: [mapserver-users] mapserver 5.6.0, RFC 52 and driver
>>> support
>>>
>>> Do you think there would be any point in making the changes for OGR
>>> (for
>>> my ODBC -> Sql Server connection)?  If so, I'll start having a look at
>>> the
>>> code...
>>>
>>> Brent
>>>
>>>> The improvements are limited to native drivers only, principally
>>>> Oracle
>>>> Spatial and PostGIS.
>>>>
>>>> Steve
>>>>
>>>> -----Original Message-----
>>>> From: mapserver-users-bounces at lists.osgeo.org
>>>> [mailto:mapserver-users-bounces at lists.osgeo.org] On Behalf Of Brent
>>>> Fraser
>>>> Sent: Tuesday, December 22, 2009 2:48 PM
>>>> To: mapserver-users at lists.osgeo.org
>>>> Subject: [mapserver-users] mapserver 5.6.0, RFC 52 and driver support
>>>>
>>>> To all,
>>>>
>>>>   I've got a query performance problem I'm trying to track down.  I
>>>> was
>>>> hopeful that 5.6 with RFC 52 implemented might help me, but it seems
>>>> to
>>>> have no impact.
>>>>
>>>>   Are the changes for RFC 52 implemented for OGR ODBC connections?
>>>>
>>>> Thanks!
>>>> Brent Fraser
>>>>
>>>> _______________________________________________
>>>> mapserver-users mailing list
>>>> mapserver-users at lists.osgeo.org
>>>> http://lists.osgeo.org/mailman/listinfo/mapserver-users
>>>>
>>>
>>>
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>>>
>>
>>
>>
>
>
>




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