[basex-talk] index:facets()
Hi, after Andreas recommended using index:facets(), my application speeds up. However, I don't think that this is the best solution. The database, I apply this function to is changing constantly. As the function is using the index, I would have to re-create the index first, is this correct? So that the functions would give wrong results most of the time. And I found another strange thing: I had to delete some nodes and re-created all indexes. However, index:facets() still gives the information from the status *before* the deletion, i.e., it counts nodes that aren't there anymore. Therefore I don't use it. count(//entry/selected[text () = yes]) gives the correct result, index:facets(collect, flat)//element[@name = selected]/entry[text() = yes]/@count/data() still gives the wrong result, i.e., the result that was correct some days ago. Is this a bug or a feature? Best regards Cerstin -- Dr. phil. Cerstin Mahlow Universität Basel Departement Sprach- und Literaturwissenschaften Fachbereich Deutsche Sprach- und Literaturwissenschaft Nadelberg 4 4051 Basel Schweiz Tel: +41 61 267 07 65 Fax: +41 61 267 34 40 Mail: cerstin.mah...@unibas.ch Web: http://www.oldphras.net ___ BaseX-Talk mailing list BaseX-Talk@mailman.uni-konstanz.de https://mailman.uni-konstanz.de/mailman/listinfo/basex-talk
Re: [basex-talk] index:facets()
Hi Cerstin, re-created all indexes which indexes did you re-created? The information of index:facets is stored in the path index and therefore only optimize all is updating this index structure. -- Andreas Am 05.10.2012 um 18:46 schrieb Cerstin Elisabeth Mahlow: Hi, after Andreas recommended using index:facets(), my application speeds up. However, I don't think that this is the best solution. The database, I apply this function to is changing constantly. As the function is using the index, I would have to re-create the index first, is this correct? So that the functions would give wrong results most of the time. And I found another strange thing: I had to delete some nodes and re-created all indexes. However, index:facets() still gives the information from the status *before* the deletion, i.e., it counts nodes that aren't there anymore. Therefore I don't use it. count(//entry/selected[text () = yes]) gives the correct result, index:facets(collect, flat)//element[@name = selected]/entry[text() = yes]/@count/data() still gives the wrong result, i.e., the result that was correct some days ago. Is this a bug or a feature? Best regards Cerstin -- Dr. phil. Cerstin Mahlow Universität Basel Departement Sprach- und Literaturwissenschaften Fachbereich Deutsche Sprach- und Literaturwissenschaft Nadelberg 4 4051 Basel Schweiz Tel: +41 61 267 07 65 Fax: +41 61 267 34 40 Mail: cerstin.mah...@unibas.ch Web: http://www.oldphras.net ___ BaseX-Talk mailing list BaseX-Talk@mailman.uni-konstanz.de https://mailman.uni-konstanz.de/mailman/listinfo/basex-talk ___ BaseX-Talk mailing list BaseX-Talk@mailman.uni-konstanz.de https://mailman.uni-konstanz.de/mailman/listinfo/basex-talk
Re: [basex-talk] index:facets()
Hi Andreas, I created all indexes as such and I clicked optimize. I also closed the GUI, opened it new, droped all indexes and did optimization again. However, your comment implicitly confirms that I can use index:facets() only when the database is somewhat stable and not in constant flux as in our scenario. Best regards Cerstin -- Dr. phil. Cerstin Mahlow Universität Basel Departement Sprach- und Literaturwissenschaften Fachbereich Deutsche Sprach- und Literaturwissenschaft Nadelberg 4 4051 Basel Schweiz Tel: +41 61 267 07 65 Fax: +41 61 267 34 40 Mail: cerstin.mah...@unibas.ch Web: http://www.oldphras.net Von: Andreas Weiler [andreas.wei...@uni-konstanz.de] Gesendet: Freitag, 5. Oktober 2012 18:51 An: Cerstin Elisabeth Mahlow Cc: basex-talk@mailman.uni-konstanz.de Betreff: Re: [basex-talk] index:facets() Hi Cerstin, re-created all indexes which indexes did you re-created? The information of index:facets is stored in the path index and therefore only optimize all is updating this index structure. -- Andreas Am 05.10.2012 um 18:46 schrieb Cerstin Elisabeth Mahlow: Hi, after Andreas recommended using index:facets(), my application speeds up. However, I don't think that this is the best solution. The database, I apply this function to is changing constantly. As the function is using the index, I would have to re-create the index first, is this correct? So that the functions would give wrong results most of the time. And I found another strange thing: I had to delete some nodes and re-created all indexes. However, index:facets() still gives the information from the status *before* the deletion, i.e., it counts nodes that aren't there anymore. Therefore I don't use it. count(//entry/selected[text () = yes]) gives the correct result, index:facets(collect, flat)//element[@name = selected]/entry[text() = yes]/@count/data() still gives the wrong result, i.e., the result that was correct some days ago. Is this a bug or a feature? Best regards Cerstin -- Dr. phil. Cerstin Mahlow Universität Basel Departement Sprach- und Literaturwissenschaften Fachbereich Deutsche Sprach- und Literaturwissenschaft Nadelberg 4 4051 Basel Schweiz Tel: +41 61 267 07 65 Fax: +41 61 267 34 40 Mail: cerstin.mah...@unibas.ch Web: http://www.oldphras.net ___ BaseX-Talk mailing list BaseX-Talk@mailman.uni-konstanz.de https://mailman.uni-konstanz.de/mailman/listinfo/basex-talk ___ BaseX-Talk mailing list BaseX-Talk@mailman.uni-konstanz.de https://mailman.uni-konstanz.de/mailman/listinfo/basex-talk
Re: [basex-talk] index:facets()
Hi Cerstin, However, your comment implicitly confirms that I can use index:facets() only when the database is somewhat stable and not in constant flux as in our scenario. Yes thats true, in our scenario it is used to get a quick overview about a very large database and to configure the query frontend. However our data is not changing over time. Kind regards, Andreas Am 05.10.2012 um 18:54 schrieb Cerstin Elisabeth Mahlow: Hi Andreas, I created all indexes as such and I clicked optimize. I also closed the GUI, opened it new, droped all indexes and did optimization again. However, your comment implicitly confirms that I can use index:facets() only when the database is somewhat stable and not in constant flux as in our scenario. Best regards Cerstin -- Dr. phil. Cerstin Mahlow Universität Basel Departement Sprach- und Literaturwissenschaften Fachbereich Deutsche Sprach- und Literaturwissenschaft Nadelberg 4 4051 Basel Schweiz Tel: +41 61 267 07 65 Fax: +41 61 267 34 40 Mail: cerstin.mah...@unibas.ch Web: http://www.oldphras.net Von: Andreas Weiler [andreas.wei...@uni-konstanz.de] Gesendet: Freitag, 5. Oktober 2012 18:51 An: Cerstin Elisabeth Mahlow Cc: basex-talk@mailman.uni-konstanz.de Betreff: Re: [basex-talk] index:facets() Hi Cerstin, re-created all indexes which indexes did you re-created? The information of index:facets is stored in the path index and therefore only optimize all is updating this index structure. -- Andreas Am 05.10.2012 um 18:46 schrieb Cerstin Elisabeth Mahlow: Hi, after Andreas recommended using index:facets(), my application speeds up. However, I don't think that this is the best solution. The database, I apply this function to is changing constantly. As the function is using the index, I would have to re-create the index first, is this correct? So that the functions would give wrong results most of the time. And I found another strange thing: I had to delete some nodes and re-created all indexes. However, index:facets() still gives the information from the status *before* the deletion, i.e., it counts nodes that aren't there anymore. Therefore I don't use it. count(//entry/selected[text () = yes]) gives the correct result, index:facets(collect, flat)//element[@name = selected]/entry[text() = yes]/@count/data() still gives the wrong result, i.e., the result that was correct some days ago. Is this a bug or a feature? Best regards Cerstin -- Dr. phil. Cerstin Mahlow Universität Basel Departement Sprach- und Literaturwissenschaften Fachbereich Deutsche Sprach- und Literaturwissenschaft Nadelberg 4 4051 Basel Schweiz Tel: +41 61 267 07 65 Fax: +41 61 267 34 40 Mail: cerstin.mah...@unibas.ch Web: http://www.oldphras.net ___ BaseX-Talk mailing list BaseX-Talk@mailman.uni-konstanz.de https://mailman.uni-konstanz.de/mailman/listinfo/basex-talk ___ BaseX-Talk mailing list BaseX-Talk@mailman.uni-konstanz.de https://mailman.uni-konstanz.de/mailman/listinfo/basex-talk ___ BaseX-Talk mailing list BaseX-Talk@mailman.uni-konstanz.de https://mailman.uni-konstanz.de/mailman/listinfo/basex-talk
