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https://jira.nuxeo.org/browse/NXP-6004?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=84968#action_84968
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Benoit Delbosc commented on NXP-6004:
-------------------------------------

Reduce read acl length by skipping everything after a deny everyone, for 
PostgreSQL backend:
http://hg.nuxeo.org/nuxeo/nuxeo-core/rev/d7f3a58cd4b0


> Canonicalize read acl to by pass 4k db limits
> ---------------------------------------------
>
>                 Key: NXP-6004
>                 URL: https://jira.nuxeo.org/browse/NXP-6004
>             Project: Nuxeo Enterprise Platform
>          Issue Type: Improvement
>          Components: Core SQL Storage, Security / Rights
>    Affects Versions: 5.4
>            Reporter: Benoit Delbosc
>            Assignee: Benoit Delbosc
>
> The read ACL optimization store all possible read ACL in a table (read_acls) 
> if many folders
> above a document have long ACLs we can reach the field limit (4096).
> The read acls can be canonicalize or truncate for instance everything after 
> the first -Everyone is useless.

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