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    • De-normalized Values

    1. Welcome to VaultWiki.org, home of the wiki add-on for vBulletin and XenForo!

      VaultWiki allows your existing forum users to collaborate on creating and managing a site's content pages. VaultWiki is a fully-featured and fully-supported wiki solution for vBulletin and XenForo.

      The VaultWiki Team encourages you to join our community of forum administrators and check out VaultWiki for yourself.

    Issue: De-normalized Values

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    1. issueid=1816 July 20, 2010 9:39 PM
      pegasus pegasus is offline
      VaultWiki Team
      De-normalized Values

      There are a number of fields in the database which are de-normalized. This means that the field could lead to multiple-row UPDATEs in the database, or just that the field is an unnecessary duplicate value, that may exist only for ease of access.

      vault_article.bookid (duplicate value, shortcut for vault_chapter.bookid, requires extra update on change)
      vault_revision.forumid (duplicate value, shortcut for thread.forumid, requires multi-row update on move)
      vault_link.targetid (duplicate value, shortcut for vault_list.threadid, requires multi-row update on creation)
      vault_category.categoryid (duplicate value, shortcut for vault_list.threadid, requires multi-row update on creation)
    Issue Details
    Issue Number 1816
    Issue Type Bug
    Project VaultWiki 3.x Series
    Category Performance
    Status Fixed
    Priority 4 - Warnings / Script Errors
    Affected Version 3.0.1
    Fixed Version 4.0.0 Alpha 1
    Milestone VaultWiki 4.0.0 Alpha 1
    Software DependencyAny
    Users able to reproduce bug 0
    Users unable to reproduce bug 0
    Attachments 0
    Assigned Users (none)
    Tags (none)




    1. November 11, 2010 4:00 PM
      pegasus pegasus is offline
      VaultWiki Team
      Since we have begun rebuilding these tables from scratch, I'm going to close this.

      In particular, vault_article.bookid, vault_revision.forumid, and vault_link.targetid have been dropped (they are duplicates anyway).
      vault_category.categoryid still exists as a necessary pointer to a landing page, but the vault_category table has been separated into vw_box and vw_boxitem to avoid the multi-row update.
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