At http://bzr.arbash-meinel.com/branches/bzr/1.8-dev/btree_buffer
------------------------------------------------------------
revno: 3767
revision-id: [EMAIL PROTECTED]
parent: [EMAIL PROTECTED]
committer: John Arbash Meinel <[EMAIL PROTECTED]>
branch nick: btree_buffer
timestamp: Mon 2008-10-06 14:08:23 -0500
message:
A little bit more
=== modified file 'doc/developers/btree_index_request_expansion.rst'
--- a/doc/developers/btree_index_request_expansion.rst 2008-10-04 16:11:37
+0000
+++ b/doc/developers/btree_index_request_expansion.rst 2008-10-06 19:08:23
+0000
@@ -254,4 +254,7 @@
all pages could fit in a single width request.
4. When expanding, add nodes that are "next" to the node in question, which
- have not been read yet.
+ have not been read yet. This also has another interesting property. When
+ searching in a given direction, on the first request, we will pre-read both
+ directions. Future requests will only pre-read in one direction, as the
+ other direction is cached.
--
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