Re: [Geoserver-users] Geopackage queries
Hi Olivier,
this issue has been fixed a few months ago:
https://osgeo-org.atlassian.net/browse/GEOT-7054
Given the "fix for" tags it should be included in 2.19.6, 2.20.4 and
2.21.0. Are you using an older version?
Cheers
Andrea
On Tue, May 31, 2022 at 9:43 PM Olivier Gagnon wrote:
> Hi,
>
> I'm facing very slow WFS queries with geopackage (sqlite).
>
> If I use PropertyIsBetween filter, Geoserver formats the SQL query
> including the filter in the where clause :
>
> WHERE ("ID" BETWEEN 1 AND 1000 AND "ID" IS NOT NULL )
>
> But when PropertyIsLike is used, geoserver doesn't add it to the SQL where
> clause thus preventing the use of the sqlite db engine and perform the
> filter itself which is very slow.
>
> I tried using a FTS5 virtual table but geoserver doesn't "see" it even
> with a sql view.
>
> Is there a way to indicate to geoserver to use db engine to perform the
> like clause ?
>
> Thanks
>
> Envoyé à partir d’Outlook
> ___
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>
> Please make sure you read the following two resources before posting to
> this list:
> - Earning your support instead of buying it, but Ian Turton:
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>
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> https://github.com/geoserver/geoserver/wiki/Successfully-requesting-and-integrating-new-features-and-improvements-in-GeoServer
>
>
> Geoserver-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/geoserver-users
>
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Regards,
Andrea Aime
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If you want to request a feature or an improvement, also see this:
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Re: [Geoserver-users] Geopackage queries
On Tue, 31 May 2022 at 20:11, Olivier Gagnon wrote:
> Hi,
>
> I'm facing very slow WFS queries with geopackage (sqlite).
>
> If I use PropertyIsBetween filter, Geoserver formats the SQL query
> including the filter in the where clause :
>
> WHERE ("ID" BETWEEN 1 AND 1000 AND "ID" IS NOT NULL )
>
> But when PropertyIsLike is used, geoserver doesn't add it to the SQL where
> clause thus preventing the use of the sqlite db engine and perform the
> filter itself which is very slow.
>
> I tried using a FTS5 virtual table but geoserver doesn't "see" it even
> with a sql view.
>
> Is there a way to indicate to geoserver to use db engine to perform the
> like clause ?
>
You would need to modify the GeoPkgFilterToSQL code (
https://github.com/geotools/geotools/blob/main/modules/plugin/geopkg/src/main/java/org/geotools/geopkg/GeoPkgFilterToSQL.java)
to handle that construct, though I would have expected the default JDBC
class (
https://github.com/geotools/geotools/blob/494d2e0a7bd004d7fb7c6d758eb6a3597acda9fc/modules/library/jdbc/src/main/java/org/geotools/data/jdbc/FilterToSQL.java#L514)
to handle it.
Can you provide an example of the query that is not working?
Ian
> Thanks
>
> Envoyé à partir d’Outlook
> ___
> Geoserver-users mailing list
>
> Please make sure you read the following two resources before posting to
> this list:
> - Earning your support instead of buying it, but Ian Turton:
> http://www.ianturton.com/talks/foss4g.html#/
> - The GeoServer user list posting guidelines:
> http://geoserver.org/comm/userlist-guidelines.html
>
> If you want to request a feature or an improvement, also see this:
> https://github.com/geoserver/geoserver/wiki/Successfully-requesting-and-integrating-new-features-and-improvements-in-GeoServer
>
>
> Geoserver-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/geoserver-users
>
--
Ian Turton
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If you want to request a feature or an improvement, also see this:
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[Geoserver-users] Geopackage queries
Hi,
I'm facing very slow WFS queries with geopackage (sqlite).
If I use PropertyIsBetween filter, Geoserver formats the SQL query including
the filter in the where clause :
WHERE ("ID" BETWEEN 1 AND 1000 AND "ID" IS NOT NULL )
But when PropertyIsLike is used, geoserver doesn't add it to the SQL where
clause thus preventing the use of the sqlite db engine and perform the filter
itself which is very slow.
I tried using a FTS5 virtual table but geoserver doesn't "see" it even with a
sql view.
Is there a way to indicate to geoserver to use db engine to perform the like
clause ?
Thanks
Envoyé à partir d’Outlook
___
Geoserver-users mailing list
Please make sure you read the following two resources before posting to this
list:
- Earning your support instead of buying it, but Ian Turton:
http://www.ianturton.com/talks/foss4g.html#/
- The GeoServer user list posting guidelines:
http://geoserver.org/comm/userlist-guidelines.html
If you want to request a feature or an improvement, also see this:
https://github.com/geoserver/geoserver/wiki/Successfully-requesting-and-integrating-new-features-and-improvements-in-GeoServer
Geoserver-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/geoserver-users
