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https://issues.apache.org/jira/browse/JCRVLT-831?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18045227#comment-18045227
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Julian Reschke commented on JCRVLT-831:
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Rough idea: instead of collecting namespace prefixes in a separate phase, do so
while walking the tree that is being exported.
> For collection of namespace prefixed, avoid interating over sibling nodes not
> contained in the filter(s)
> --------------------------------------------------------------------------------------------------------
>
> Key: JCRVLT-831
> URL: https://issues.apache.org/jira/browse/JCRVLT-831
> Project: Jackrabbit FileVault
> Issue Type: Improvement
> Components: vlt
> Reporter: Julian Reschke
> Assignee: Julian Reschke
> Priority: Major
>
> It appears that the changes for JCRVLT-789 improved the performance for
> exporting the *content*, however the phase of collecting namespace prefixes
> does not use that optimzation.
> (TBD: write a test)
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