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Check-in [69b129b4a4]
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Overview
Comment:Note an error in fileformat.html.
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1:69b129b4a41b014981ff36624824b62db9365b08
User & Date: dan 2009-06-17 03:30:39
Context
2009-06-23
14:36
Preparations for the 3.6.16 release. check-in: 1793436b49 user: drh tags: trunk
2009-06-17
03:30
Note an error in fileformat.html. check-in: 69b129b4a4 user: dan tags: trunk
2009-06-13
10:59
Remove an unrequired "todo" in btreemodule.html. check-in: 1563461430 user: dan tags: trunk
Changes
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Changes to pages/fileformat.in.

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      pointers, where <i>usable-size</i> is defined as the page-size in bytes
      less the number of unused bytes left at the end of every page (as read
      from byte offset 20 of the database header).

      [Figure freelistpage.gif figure_freelistpage "Free List Trunk Page Format"]
    <p>
      All trunk pages in the free-list except for the first contain the 
      maximum possible number of references to leaf pages. <span class=todo>Is this actually true in an auto-vacuum capable database?</span> The page number
      of the first page in the linked list of free-list trunk pages is 
      stored as a 4-byte big-endian unsigned integer at offset 32 of the
      database header (section <cite>database_header</cite>).

          [fancyformat_import_requirement H31240]
          [fancyformat_import_requirement H31250]
          [fancyformat_import_requirement H31260]







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      pointers, where <i>usable-size</i> is defined as the page-size in bytes
      less the number of unused bytes left at the end of every page (as read
      from byte offset 20 of the database header).

      [Figure freelistpage.gif figure_freelistpage "Free List Trunk Page Format"]
    <p>
      All trunk pages in the free-list except for the first contain the 
      maximum possible number of references to leaf pages. <span class=todo>Is this actually true in an auto-vacuum capable database? Later: No, not even nearly true. It is a false statement.</span> The page number
      of the first page in the linked list of free-list trunk pages is 
      stored as a 4-byte big-endian unsigned integer at offset 32 of the
      database header (section <cite>database_header</cite>).

          [fancyformat_import_requirement H31240]
          [fancyformat_import_requirement H31250]
          [fancyformat_import_requirement H31260]