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Various speed enhancements. (CVS 1498)

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FossilOrigin-Name: a0db15bba64af0c529d5be366659bca1165ff21b
This commit is contained in:
drh
2004-05-30 20:46:09 +00:00
parent 271efa5a28
commit e51c44f481
9 changed files with 126 additions and 100 deletions
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17
src/vdbe.c
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@@ -43,7 +43,7 @@
** in this file for details. If in doubt, do not deviate from existing
** commenting and indentation practices when changing or adding code.
**
** $Id: vdbe.c,v 1.348 2004/05/30 02:14:18 drh Exp $
** $Id: vdbe.c,v 1.349 2004/05/30 20:46:09 drh Exp $
*/
#include "sqliteInt.h"
#include "os.h"
@@ -1531,9 +1531,10 @@ case OP_Ge: {
}
affinity = (pOp->p1>>8)&0xFF;
if( affinity=='\0' ) affinity = 'n';
applyAffinity(pNos, affinity, db->enc);
applyAffinity(pTos, affinity, db->enc);
if( affinity ){
applyAffinity(pNos, affinity, db->enc);
applyAffinity(pTos, affinity, db->enc);
}
assert( pOp->p3type==P3_COLLSEQ || pOp->p3==0 );
res = sqlite3MemCompare(pNos, pTos, (CollSeq*)pOp->p3);
@@ -1889,6 +1890,7 @@ case OP_Column: {
aType = pC->aType;
aOffset = pC->aOffset;
}else{
int avail; /* Number of bytes of available data */
if( pC && pC->aType ){
aType = pC->aType;
}else{
@@ -1903,17 +1905,16 @@ case OP_Column: {
if( zRec ){
zData = zRec;
}else{
int sz = payloadSize<5 ? payloadSize : 5;
if( pC->keyAsData ){
zData = (char*)sqlite3BtreeKeyFetch(pCrsr, sz);
zData = (char*)sqlite3BtreeKeyFetch(pCrsr, &avail);
}else{
zData = (char*)sqlite3BtreeDataFetch(pCrsr, sz);
zData = (char*)sqlite3BtreeDataFetch(pCrsr, &avail);
}
}
idx = sqlite3GetVarint32(zData, &szHdr);
/* Get the complete header text */
if( !zRec ){
if( !zRec && avail<idx ){
rc = sqlite3VdbeMemFromBtree(pCrsr, 0, szHdr, pC->keyAsData, &sMem);
if( rc!=SQLITE_OK ){
goto abort_due_to_error;