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[PATCH]subversion/libsvn_fs_base/notes/structure

From: Kamesh Jayachandran <kamesh_at_collab.net>
Date: 2006-03-08 19:13:35 CET

Hi All,
One more observation on bdb structure doc. Find the attached patch.

I could not see REP-OFFSET (part of WINDOW which is part of
REPRESENTATION DELTA KIND-SPECIFIC)implemented in subversion yet.
Shall we mention the same in the doc.

With regards
Kamesh Jayachandran

[[[
'fulltext' representation has 1 to 1 relationship with strings.
'delta' representation has 1 to many relationship with strings.

Patch by: Kamesh Jayachandran <kamesh@collab.net>

* subversion/libsvn_fs_base/notes/structure
  'fulltext' representation has 1 to 1 relationship with strings.
  'delta' representation has 1 to many relationship with strings.
]]]

Index: subversion/libsvn_fs_base/notes/structure
===================================================================
--- subversion/libsvn_fs_base/notes/structure (revision 18766)
+++ subversion/libsvn_fs_base/notes/structure (working copy)
@@ -373,10 +373,11 @@
 etc.
 
 Representations never share strings. Every string is represented by
-exactly one representation; every representation represents exactly
+exactly one representation; every 'fulltext' representation represents exactly
 one string. This is so we can replace a string with deltified version
 of itself, change the representation referring to it, and know that
-we're not messing up any other reps by doing so.
+we're not messing up any other reps by doing so. The 'delta' representation
+can represent more than one string depending on the size of the delta.
 
 
 Further Notes On Deltifying:

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Received on Wed Mar 8 19:18:47 2006

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