[mapserver-dev] MOTION to adopt RFC 118 - Vendor-specific WMS FILTER param

[Andrea Peri]

Hi,

The trick is to have every fields of db indexed

Otherwise a remote filter on an not indexed fields could slowly hardly.
:)




Il 23 Ago 2017 15:06, "Daniel Morissette" <dmorissette at mapgears.com> ha
scritto:

> Hi Jukka,
>
> That's a very good question and I thought the same as you at first, but
> when I think about it some more I'm not sure if the risk is real or not:
> since the FILTER is combined with whatever pre-existing filter was already
> in the layer, it can only reduce the number of features returned/drawn, so
> it can hardly add much load, unless the number of features returned/drawn
> was already excessively high.
>
> I didn't research this in details so I may be missing something obvious.
> What do you think?
>
> Daniel
>
> On 2017-08-16 5:12 AM, Rahkonen Jukka (MML) wrote:
>
>> Hi,
>>
>> One thing that came late into my mind: it will be rather easy to write
>> FILTER params which are very heavy to execute in the database. Same applies
>> to SLD, see https://github.com/mapserver/mapserver/pull/4703, and
>> because of that server admin can deny the use of SLD by setting
>> ows_sld_enabled metadata into false.
>>
>> Unlike  %variable% it is not easy to validate OGC filters, but should we
>> have at least a method for disabling it with some metadata like
>> “wms_filter_enabled”
>>
>> -Jukka Rahkonen-
>>
>> *Lähettäjä:*mapserver-dev [mailto:mapserver-dev-bounces at lists.osgeo.org]
>> *Puolesta *Rahkonen Jukka (MML)
>> *Lähetetty:* 16. elokuuta 2017 7:12
>> *Vastaanottaja:* Lime, Steve D (MNIT) <steve.lime at state.mn.us>; Daniel
>> Morissette <dmorissette at mapgears.com>; 'MapServer Dev List' <
>> mapserver-dev at lists.osgeo.org>
>> *Aihe:* Re: [mapserver-dev] MOTION to adopt RFC 118 - Vendor-specific WMS
>> FILTER param
>>
>> +1
>>
>> -Jukka Rahkonen-
>>
>> ------------------------------------------------------------------------
>>
>> *Lähettäjä: *Lime, Steve D (MNIT) <mailto:steve.lime at state.mn.us>
>> *Lähetetty: *‎16.‎8.‎2017 3:01
>> *Vastaanottaja: *Daniel Morissette <mailto:dmorissette at mapgears.com>;
>> 'MapServer Dev List' <mailto:mapserver-dev at lists.osgeo.org>
>> *Aihe: *Re: [mapserver-dev] MOTION to adopt RFC 118 - Vendor-specific WMS
>> FILTER param
>>
>> +1
>>
>> ------------------------------------------------------------------------
>>
>> *From:*mapserver-dev <mapserver-dev-bounces at lists.osgeo.org <mailto:
>> mapserver-dev-bounces at lists.osgeo.org>> on behalf of Daniel Morissette <
>> dmorissette at mapgears.com <mailto:dmorissette at mapgears.com>>
>> *Sent:* Tuesday, August 15, 2017 4:41:33 PM
>> *To:* 'MapServer Dev List'
>> *Subject:* [mapserver-dev] MOTION to adopt RFC 118 - Vendor-specific WMS
>> FILTER param
>>
>> We had the discussion on RFC 118 back in February and the code in my
>> fork (https://github.com/dmorissette/mapserver/tree/rfc118-filter) has
>> been in use in a few apps since, but we haven't voted to include it
>> officially in 7.2 yet.
>>
>> So unless there is more feedback, I'll move to adopt MS RFC 118 -
>> Support Vendor-Specific OGC FILTER parameter in WMS requests:
>>
>> http://mapserver.org/development/rfc/ms-rfc-118.html
>>
>> And I start with my +1
>>
>> Daniel
>> --
>> Daniel Morissette
>> Mapgears Inc
>> T: +1 418-696-5056 #201
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>>
>>
>>
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>>
>
> --
> Daniel Morissette
> Mapgears Inc
> T: +1 418-696-5056 #201
> _______________________________________________
> mapserver-dev mailing list
> mapserver-dev at lists.osgeo.org
> https://lists.osgeo.org/mailman/listinfo/mapserver-dev
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