2 Dec 2009 10:51
Re: Improving Sedna write performance
Hi Alexander,
Thank you for your information.
1. It's better to use attributes for simple data: <Batch id='1'>...</Batch>.
2. Create unique ID for Step and use indexes to determine insertion point:
<Step id='3.0.1.12'> .... </Step> (which means Simulation 3, Batch 0, Run 1, Step 12)
CREATE INDEX "step" ON fn:doc("whatever')/SimulationData/Simulation/Batch/Step BY <at> id AS xs:string
So, your update will look like this:
UPDATE INSERT ( something ) INTO index-scan('step', '3.0.1.12', 'EQ')
3. Send me just a couple of event logs with your updates.
Ivan Shcheklein,
Sedna Team
------------------------------------------------------------------------------ Join us December 9, 2009 for the Red Hat Virtual Experience, a free event focused on virtualization and cloud computing. Attend in-depth sessions from your desk. Your couch. Anywhere. http://p.sf.net/sfu/redhat-sfdev2dev
_______________________________________________ Sedna-discussion mailing list Sedna-discussion@... https://lists.sourceforge.net/lists/listinfo/sedna-discussion
RSS Feed