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Simplify the b-tree logic by taking advantage of the fact that all b-trees

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are either intkey+leafdata or zerodata. (CVS 5431)

FossilOrigin-Name: 29d3bfd7c9a68078385354394052612bf812859b
This commit is contained in:
drh
2008-07-17 18:39:57 +00:00
parent b912f3e9e4
commit 44845221ed
4 changed files with 39 additions and 30 deletions
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4
src/btreeInt.h
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@@ -9,7 +9,7 @@
** May you share freely, never taking more than you give.
**
*************************************************************************
** $Id: btreeInt.h,v 1.26 2008/07/12 14:52:20 drh Exp $
** $Id: btreeInt.h,v 1.27 2008/07/17 18:39:58 drh Exp $
**
** This file implements a external (disk-based) database using BTrees.
** For a detailed discussion of BTrees, refer to
@@ -275,8 +275,6 @@ struct MemPage {
u8 nOverflow; /* Number of overflow cell bodies in aCell[] */
u8 intKey; /* True if intkey flag is set */
u8 leaf; /* True if leaf flag is set */
u8 zeroData; /* True if table stores keys only */
u8 leafData; /* True if tables stores data on leaves only */
u8 hasData; /* True if this page stores data */
u8 hdrOffset; /* 100 for page 1. 0 otherwise */
u8 childPtrSize; /* 0 if leaf==1. 4 if leaf==0 */