Using the attribute index to get attribute values

> Am 12.06.2019 um 09:07 schrieb France Baril <france.baril at architextus.com>: > > Hi, > > I have been implementing more queries that use the attribute indexes lately. However a lot of my queries require getting values to offer selectable items in user forms (GUI). I have not found a good way to do that. > > For example, I tried changing : > let $account-types := distinct-values(db:open($db-name)//account/@type) > to > let $account-types := distinct-values(db:attribute-range($db-name, 'a', 'zzzzzzzzzz', 'type')[parent::*/name() = 'account']) > > I looked for a function that would be more like > let $account-types := db:attribute-values($db-name, 'type')[parent::*/name() = 'account] > > I'm not getting any performance improvements with the db:attribute-range compared to the regular db:open($db-name). and I am assuming that the issue is that since I provide a range, it has to check every value individually as opposed to just grabbing everything in the named attribute. > > Any chance we can get values at some point? Or do you have a suggestion to improve this type of query? > > > > > -- > France Baril > Architecte documentaire / Documentation architect > france.baril at architextus.com <mailto:france.baril at architextus.com>

On Wed, Jun 12, 2019 at 4:34 PM Michael Seiferle <ms at basex.org> wrote: > Hi France, > > that’s just a wild guess, but maybe the index:facets() might be of help > here? > It works directly on the index information, so the queries should be > sufficiently fast if the results of index:facets() fulfill your needs. > > http://docs.basex.org/wiki/Index_Module#index:facets > > > The idea of db:attribute-values() is an idea worth discussing as well. > > Best from Konstanz > > Michael > > > > Am 12.06.2019 um 09:07 schrieb France Baril <france.baril at architextus.com > >: > > Hi, > > I have been implementing more queries that use the attribute indexes > lately. However a lot of my queries require getting values to offer > selectable items in user forms (GUI). I have not found a good way to do > that. > > For example, I tried changing : > let $account-types := distinct-values(db:open($db-name)//account/@type) > to > let $account-types := distinct-values(db:attribute-range($db-name, 'a', > 'zzzzzzzzzz', 'type')[parent::*/name() = 'account']) > > I looked for a function that would be more like > let $account-types := db:attribute-values($db-name, > 'type')[parent::*/name() = 'account] > > I'm not getting any performance improvements with the db:attribute-range > compared to the regular db:open($db-name). and I am assuming that the issue > is that since I provide a range, it has to check every value individually > as opposed to just grabbing everything in the named attribute. > > Any chance we can get values at some point? Or do you have a suggestion to > improve this type of query? > > > > > -- > France Baril > Architecte documentaire / Documentation architect > france.baril at architextus.com > > >

> (: http://files.basex.org/xml/factbook.xml :) > index:facets('factbook')//element[@name="continent"]/attribute[@name="id“]

> Am 12.06.2019 um 16:48 schrieb France Baril <france.baril at architextus.com>: > > But facets would return @type values for all @type and I need only those on <account>. > > On Wed, Jun 12, 2019 at 4:34 PM Michael Seiferle <ms at basex.org <mailto:ms at basex.org>> wrote: > Hi France, > > that’s just a wild guess, but maybe the index:facets() might be of help here? > It works directly on the index information, so the queries should be sufficiently fast if the results of index:facets() fulfill your needs. > > http://docs.basex.org/wiki/Index_Module#index:facets <http://docs.basex.org/wiki/Index_Module#index:facets> > > > The idea of db:attribute-values() is an idea worth discussing as well. > > Best from Konstanz > > Michael > > > >> Am 12.06.2019 um 09:07 schrieb France Baril <france.baril at architextus.com <mailto:france.baril at architextus.com>>: >> >> Hi, >> >> I have been implementing more queries that use the attribute indexes lately. However a lot of my queries require getting values to offer selectable items in user forms (GUI). I have not found a good way to do that. >> >> For example, I tried changing : >> let $account-types := distinct-values(db:open($db-name)//account/@type) >> to >> let $account-types := distinct-values(db:attribute-range($db-name, 'a', 'zzzzzzzzzz', 'type')[parent::*/name() = 'account']) >> >> I looked for a function that would be more like >> let $account-types := db:attribute-values($db-name, 'type')[parent::*/name() = 'account] >> >> I'm not getting any performance improvements with the db:attribute-range compared to the regular db:open($db-name). and I am assuming that the issue is that since I provide a range, it has to check every value individually as opposed to just grabbing everything in the named attribute. >> >> Any chance we can get values at some point? Or do you have a suggestion to improve this type of query? >> >> >> >> >> -- >> France Baril >> Architecte documentaire / Documentation architect >> france.baril at architextus.com <mailto:france.baril at architextus.com> > > > > -- > France Baril > Architecte documentaire / Documentation architect > france.baril at architextus.com <mailto:france.baril at architextus.com>