OracleSpatial 10i GetExtent slow

[Hallgren Johan E]

Hello

I have used the mapscript function getExtent for a layer, to get the
extent, that one was slow. Do you mean that the msOWSGetLayerExtent
would be faster?

Could it be possible to change the logic so the function I need would
run the msOWSGetLayerExtent instead?

/Johan

___________________________________


Johan Hallgren
WM-data


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johan.e.hallgren at wmdata.com
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-----Original Message-----
From: UMN MapServer Developers List [mailto:MAPSERVER-DEV at LISTS.UMN.EDU]
On Behalf Of Frank Warmerdam
Sent: den 23 februari 2006 20:11
To: MAPSERVER-DEV at LISTS.UMN.EDU
Subject: Re: [UMN_MAPSERVER-DEV] OracleSpatial 10i GetExtent slow

Fernando Simon wrote:
> Hi,
>     The getExtent feature need to return the extent for the layer, 
> and it's use as source the DATA definition.
>     Of coure that for direct tables the USER_SDO_GEOM_METADATA is the
> best way to retrieve the extent for the layer, but the getExtent
> function needs to be generic. So if the user defined a DATA parameter
> that use a function (like SDO_BUFFER, SDO_XOR), or a specific where,
> the getExtent needs to work too.
>     To work with all cases the maporaclespatial.c need to be generic.
> In this moment the maporaclespatial.c don't use the
> USER_SDO_GEOM_METADATA. You can try to define others parameters for
> VERSION to test the results.

Folks,

What is calling the msLayerGetExtent()?  The msOWSGetLayerExtent()
function
includes support for ows_extent metadata to short circuit extent
computations.

Best regards,
-- 
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