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Overview
Comment:Fix for CVSTrac ticket #3031 - typo in atomic commit document.
Timelines: family | ancestors | descendants | both | trunk
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SHA1: afd9f7a1c417596ed420fa8af8b3f6f2de4ce98d
User & Date: drh 2008-04-08 05:30:59
Context
2008-04-15
01:32
Update the keyword list. CVSTrac ticket #3054. check-in: 1b43c0419c user: drh tags: trunk
2008-04-08
05:30
Fix for CVSTrac ticket #3031 - typo in atomic commit document. check-in: afd9f7a1c4 user: drh tags: trunk
2008-03-18
14:07
Fix an HTML syntax error in the common page footer. CVSTrac ticket #3004. check-in: e21302f6df user: drh tags: trunk
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Changes to pages/atomiccommit.in.

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some future release of SQLite.  But for now (version 3.5.0) the
rollback journal truncation optimization is only enabled in conjunction
with exclusive access mode.</p>

<h3>7.3 Do Not Journal Freelist Pages</h3>

<p>When information is deleted from an SQLite database, the pages used
to old the deleted information are added to a "freelist".  Subsequent
inserts will draw pages off of this freelist rather than expanding the
database file.</p>

<p>Some freelist pages contain critical data; specifically the locations
of other freelist pages.  But most freelist pages contain nothing useful.
These latter freelist pages are called "leaf" pages.  We are free to
modify the content of a leaf freelist page in the database without







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some future release of SQLite.  But for now (version 3.5.0) the
rollback journal truncation optimization is only enabled in conjunction
with exclusive access mode.</p>

<h3>7.3 Do Not Journal Freelist Pages</h3>

<p>When information is deleted from an SQLite database, the pages used
to hold the deleted information are added to a "freelist".  Subsequent
inserts will draw pages off of this freelist rather than expanding the
database file.</p>

<p>Some freelist pages contain critical data; specifically the locations
of other freelist pages.  But most freelist pages contain nothing useful.
These latter freelist pages are called "leaf" pages.  We are free to
modify the content of a leaf freelist page in the database without