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Replace the VDBE Fifo object with the new RowSet object. (CVS 5977)

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FossilOrigin-Name: 39a0750b49cf55e9c0927169ca47db909f5c16ea
This commit is contained in:
drh
2008-12-04 20:40:10 +00:00
parent 947bd8091b
commit 3d4501e573
15 changed files with 407 additions and 258 deletions
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10
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 1.187 2008/11/19 09:05:27 danielk1977 Exp $
** $Id: update.c,v 1.188 2008/12/04 20:40:10 drh Exp $
*/
#include "sqliteInt.h"
@@ -124,6 +124,7 @@ void sqlite3Update(
int regOldRowid; /* The old rowid */
int regNewRowid; /* The new rowid */
int regData; /* New data for the row */
int regRowSet; /* Rowset of rows to be updated */
sContext.pParse = 0;
db = pParse->db;
@@ -352,7 +353,10 @@ void sqlite3Update(
/* Remember the rowid of every item to be updated.
*/
sqlite3VdbeAddOp2(v, IsVirtual(pTab)?OP_VRowid:OP_Rowid, iCur, regOldRowid);
if( !okOnePass ) sqlite3VdbeAddOp2(v, OP_FifoWrite, regOldRowid, 0);
if( !okOnePass ){
regRowSet = ++pParse->nMem;
sqlite3VdbeAddOp2(v, OP_RowSetAdd, regRowSet, regOldRowid);
}
/* End the database scan loop.
*/
@@ -405,7 +409,7 @@ void sqlite3Update(
addr = sqlite3VdbeAddOp0(v, OP_Goto);
sqlite3VdbeJumpHere(v, a1);
}else{
addr = sqlite3VdbeAddOp2(v, OP_FifoRead, regOldRowid, 0);
addr = sqlite3VdbeAddOp3(v, OP_RowSetRead, regRowSet, 0, regOldRowid);
}
if( triggers_exist ){