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Overview
| Comment: | Minor optimization to the OP_Halt opcode. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | omit-rowid |
| Files: | files | file ages | folders |
| SHA1: |
d70c78814ba565a44628eab61a3a0a5d |
| User & Date: | drh 2013-11-06 14:05:21 |
Context
|
2013-11-06
| ||
| 14:36 | Allocate extra stack space for UnpackedRecord objects, reducing the need to malloc for them as often, and thereby get a performance improvement. check-in: a725a75f user: drh tags: omit-rowid | |
| 14:05 | Minor optimization to the OP_Halt opcode. check-in: d70c7881 user: drh tags: omit-rowid | |
| 12:56 | Improved ORDER BY optimization for WITHOUT ROWID tables. check-in: 8f1709ff user: drh tags: omit-rowid | |
Changes
Changes to src/vdbe.c.
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** as the p2 of the calling OP_Program. */
pc = p->aOp[pc].p2-1;
}
aOp = p->aOp;
aMem = p->aMem;
break;
}
if( pOp->p5 ){
static const char * const azType[] = { "NOT NULL", "UNIQUE", "CHECK",
"FOREIGN KEY" };
assert( pOp->p5>=1 && pOp->p5<=4 );
testcase( pOp->p5==1 );
testcase( pOp->p5==2 );
testcase( pOp->p5==3 );
testcase( pOp->p5==4 );
zType = azType[pOp->p5-1];
}else{
zType = 0;
}
p->rc = pOp->p1;
p->errorAction = (u8)pOp->p2;
p->pc = pc;
if( p->rc ){
zLogFmt = "abort at %d in [%s]: %s";
if( zType && pOp->p4.z ){
sqlite3SetString(&p->zErrMsg, db, "%s constraint failed: %s",
zType, pOp->p4.z);
}else if( pOp->p4.z ){
sqlite3SetString(&p->zErrMsg, db, "%s", pOp->p4.z);
}else if( zType ){
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** as the p2 of the calling OP_Program. */
pc = p->aOp[pc].p2-1;
}
aOp = p->aOp;
aMem = p->aMem;
break;
}
p->rc = pOp->p1;
p->errorAction = (u8)pOp->p2;
p->pc = pc;
if( p->rc ){
if( pOp->p5 ){
static const char * const azType[] = { "NOT NULL", "UNIQUE", "CHECK",
"FOREIGN KEY" };
assert( pOp->p5>=1 && pOp->p5<=4 );
testcase( pOp->p5==1 );
testcase( pOp->p5==2 );
testcase( pOp->p5==3 );
testcase( pOp->p5==4 );
zType = azType[pOp->p5-1];
}else{
zType = 0;
}
zLogFmt = "abort at %d in [%s]: %s";
if( zType && pOp->p4.z ){
sqlite3SetString(&p->zErrMsg, db, "%s constraint failed: %s",
zType, pOp->p4.z);
}else if( pOp->p4.z ){
sqlite3SetString(&p->zErrMsg, db, "%s", pOp->p4.z);
}else if( zType ){
|