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rework the VDBE engine. NULL is now distinct from "" (CVS 49)

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FossilOrigin-Name: 6ea5cebf05562de00d2cf0b9e2aac5f3857638ee
This commit is contained in:
drh
2000-06-04 12:58:36 +00:00
parent 32aa77ed6e
commit c61053b771
11 changed files with 568 additions and 341 deletions
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57
src/vdbe.h
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@@ -27,7 +27,7 @@
** or VDBE. The VDBE implements an abstract machine that runs a
** simple program to access and modify the underlying database.
**
** $Id: vdbe.h,v 1.4 2000/05/31 20:00:53 drh Exp $
** $Id: vdbe.h,v 1.5 2000/06/04 12:58:39 drh Exp $
*/
#ifndef _SQLITE_VDBE_H_
#define _SQLITE_VDBE_H_
@@ -125,35 +125,36 @@ typedef struct VdbeOp VdbeOp;
#define OP_Integer 44
#define OP_String 45
#define OP_Pop 46
#define OP_Dup 47
#define OP_Pull 48
#define OP_Null 46
#define OP_Pop 47
#define OP_Dup 48
#define OP_Pull 49
#define OP_Add 49
#define OP_AddImm 50
#define OP_Subtract 51
#define OP_Multiply 52
#define OP_Divide 53
#define OP_Min 54
#define OP_Max 55
#define OP_Like 56
#define OP_Glob 57
#define OP_Eq 58
#define OP_Ne 59
#define OP_Lt 60
#define OP_Le 61
#define OP_Gt 62
#define OP_Ge 63
#define OP_IsNull 64
#define OP_NotNull 65
#define OP_Negative 66
#define OP_And 67
#define OP_Or 68
#define OP_Not 69
#define OP_Concat 70
#define OP_Noop 71
#define OP_Add 50
#define OP_AddImm 51
#define OP_Subtract 52
#define OP_Multiply 53
#define OP_Divide 54
#define OP_Min 55
#define OP_Max 56
#define OP_Like 57
#define OP_Glob 58
#define OP_Eq 59
#define OP_Ne 60
#define OP_Lt 61
#define OP_Le 62
#define OP_Gt 63
#define OP_Ge 64
#define OP_IsNull 65
#define OP_NotNull 66
#define OP_Negative 67
#define OP_And 68
#define OP_Or 69
#define OP_Not 70
#define OP_Concat 71
#define OP_Noop 72
#define OP_MAX 71
#define OP_MAX 72
/*
** Prototypes for the VDBE interface. See comments on the implementation