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Overview
| Comment: | Correctly display P4_ADVANCE values on opcode traces. Mark an always-taken branch in OP_Column as such. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | experimental |
| Files: | files | file ages | folders |
| SHA1: |
087dc96086fe4e45da93ab6a0d5dda34 |
| User & Date: | drh 2011-08-28 00:19:26 |
Context
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2011-08-28
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| 02:15 | About a 3% improvement in the performance of OP_Column. check-in: edff9d4a user: drh tags: experimental | |
| 00:19 | Correctly display P4_ADVANCE values on opcode traces. Mark an always-taken branch in OP_Column as such. check-in: 087dc960 user: drh tags: experimental | |
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2011-08-27
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| 18:48 | Experimental changes to improve the performance of OP_Next. check-in: 1a249845 user: dan tags: experimental | |
Changes
Changes to src/vdbe.c.
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assert( (payloadSize64 & SQLITE_MAX_U32)==(u64)payloadSize64 );
payloadSize = (u32)payloadSize64;
}else{
assert( sqlite3BtreeCursorIsValid(pCrsr) );
rc = sqlite3BtreeDataSize(pCrsr, &payloadSize);
assert( rc==SQLITE_OK ); /* DataSize() cannot fail */
}
}else if( pC->pseudoTableReg>0 ){
pReg = &aMem[pC->pseudoTableReg];
assert( pReg->flags & MEM_Blob );
assert( memIsValid(pReg) );
payloadSize = pReg->n;
zRec = pReg->z;
pC->cacheStatus = (pOp->p5&OPFLAG_CLEARCACHE) ? CACHE_STALE : p->cacheCtr;
assert( payloadSize==0 || zRec!=0 );
|
| |
2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181 2182 2183 |
assert( (payloadSize64 & SQLITE_MAX_U32)==(u64)payloadSize64 );
payloadSize = (u32)payloadSize64;
}else{
assert( sqlite3BtreeCursorIsValid(pCrsr) );
rc = sqlite3BtreeDataSize(pCrsr, &payloadSize);
assert( rc==SQLITE_OK ); /* DataSize() cannot fail */
}
}else if( ALWAYS(pC->pseudoTableReg>0) ){
pReg = &aMem[pC->pseudoTableReg];
assert( pReg->flags & MEM_Blob );
assert( memIsValid(pReg) );
payloadSize = pReg->n;
zRec = pReg->z;
pC->cacheStatus = (pOp->p5&OPFLAG_CLEARCACHE) ? CACHE_STALE : p->cacheCtr;
assert( payloadSize==0 || zRec!=0 );
|
Changes to src/vdbeaux.c.
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case P4_INTARRAY: {
sqlite3_snprintf(nTemp, zTemp, "intarray");
break;
}
case P4_SUBPROGRAM: {
sqlite3_snprintf(nTemp, zTemp, "program");
break;
}
default: {
zP4 = pOp->p4.z;
if( zP4==0 ){
zP4 = zTemp;
zTemp[0] = 0;
}
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> > > > |
940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 |
case P4_INTARRAY: {
sqlite3_snprintf(nTemp, zTemp, "intarray");
break;
}
case P4_SUBPROGRAM: {
sqlite3_snprintf(nTemp, zTemp, "program");
break;
}
case P4_ADVANCE: {
zTemp[0] = 0;
break;
}
default: {
zP4 = pOp->p4.z;
if( zP4==0 ){
zP4 = zTemp;
zTemp[0] = 0;
}
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