Hierarchical Queries status?
От | Hubert FONGARNAND |
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Тема | Hierarchical Queries status? |
Дата | |
Msg-id | 1164269942.8334.18.camel@hublinux.fidudev.fr обсуждение исходный текст |
Ответы |
Re: Hierarchical Queries status?
|
Список | pgsql-hackers |
I think it's a recurrent question... but i want to know more about the current developpement status of "Hierarchical queries"in postgresql.<br /><br /> Two years ago, this line appeared in the TODO List (<a href="http://www.postgresql.org/docs/faqs.TODO.html)">http://www.postgresql.org/docs/faqs.TODO.html)</a>:<br /><br /> AddSQL:2003 WITH RECURSIVE (hierarchical) queries to SELECT<br /><br /> Most of commercial database support them (SQL Server2005, DB2, Oracle (with Connect By)) and it would be VERY great that at least one "open source" database supports thisfeature. <br /> We use the CONNECT BY patch made by evgen potemkin (<a href="http://gppl.moonbone.ru/)">http://gppl.moonbone.ru/)</a>this patch works great with the latest 8.1.5 version but idoubt that it will work with 8.2 (the author doesn't answer to mail anymore...). We've try to use the connectby C functionincluded in the contrib, but it's up to 10x slower than this patch. I know that CONNECT BY is an "oracle invention"but it's the most easier way to do hierarchical queries. But we are ready to rewrite our application if postgresqlwould support WITH RECURSIVE.<br /><br /> We don't want to depend on a patch anymore... but now, there's no otheralternatives... We just want to have more visibility about this "future" feature.<br /><br /> Regards<br /><br /> HubertFONGARNAND<br /> Fiducial<br /><br /><br /><br /><br /> _______________________________________________<br />Ce messageet les �ventuels documents joints peuvent contenir des informations confidentielles.<br />Au cas o� il ne vous seraitpas destin�, nous vous remercions de bien vouloir le supprimer et en aviser imm�diatement l'exp�diteur. Toute utilisationde ce message non conforme � sa destination, toute diffusion ou publication, totale ou partielle et quel qu'ensoit le moyen est formellement interdite.<br />Les communications sur internet n'�tant pas s�curis�es, l'int�grit� dece message n'est pas assur�e et la soci�t� �mettrice ne peut �tre tenue pour responsable de son contenu.
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