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Modifications to the VDBE to support more than one database file. (CVS 878)

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FossilOrigin-Name: 875da9eed981bfa27b98e95025f9fdbed74b4098
This commit is contained in:
drh
2003-03-19 03:14:00 +00:00
parent 9468c7f489
commit 001bbcbb8f
19 changed files with 451 additions and 266 deletions
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13
src/update.c
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@@ -12,7 +12,7 @@
** This file contains C code routines that are called by the parser
** to handle UPDATE statements.
**
** $Id: update.c,v 1.53 2003/01/13 23:27:33 drh Exp $
** $Id: update.c,v 1.54 2003/03/19 03:14:02 drh Exp $
*/
#include "sqliteInt.h"
@@ -42,7 +42,6 @@ void sqliteUpdate(
int *aXRef = 0; /* aXRef[i] is the index in pChanges->a[] of the
** an expression for the i-th column of the table.
** aXRef[i]==-1 if the i-th column is not changed. */
int openOp; /* Opcode used to open tables */
int chngRecno; /* True if the record number is being changed */
Expr *pRecnoExpr; /* Expression defining the new record number */
int openAll; /* True if all indices need to be opened */
@@ -232,7 +231,8 @@ void sqliteUpdate(
sqliteVdbeAddOp(v, OP_Dup, 0, 0);
sqliteVdbeAddOp(v, OP_Dup, 0, 0);
sqliteVdbeAddOp(v, (pTab->isTemp?OP_OpenAux:OP_Open), base, pTab->tnum);
sqliteVdbeAddOp(v, OP_Integer, pTab->isTemp, 0);
sqliteVdbeAddOp(v, OP_OpenRead, base, pTab->tnum);
sqliteVdbeAddOp(v, OP_MoveTo, base, 0);
sqliteVdbeAddOp(v, OP_Integer, 13, 0);
@@ -277,8 +277,8 @@ void sqliteUpdate(
** action, then we need to open all indices because we might need
** to be deleting some records.
*/
openOp = pTab->isTemp ? OP_OpenWrAux : OP_OpenWrite;
sqliteVdbeAddOp(v, openOp, base, pTab->tnum);
sqliteVdbeAddOp(v, OP_Integer, pTab->isTemp, 0);
sqliteVdbeAddOp(v, OP_OpenWrite, base, pTab->tnum);
if( onError==OE_Replace ){
openAll = 1;
}else{
@@ -292,7 +292,8 @@ void sqliteUpdate(
}
for(i=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, i++){
if( openAll || aIdxUsed[i] ){
sqliteVdbeAddOp(v, openOp, base+i+1, pIdx->tnum);
sqliteVdbeAddOp(v, OP_Integer, pTab->isTemp, 0);
sqliteVdbeAddOp(v, OP_OpenWrite, base+i+1, pIdx->tnum);
assert( pParse->nTab>base+i+1 );
}
}