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Enhance SQLITE_SCANSTAT_NCYCLE so that it reports on virtual tables.

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FossilOrigin-Name: 622d8eb3724bee617b55d6fb71f1a2d683db6858065adced6bf3ce9525bcd6b5
This commit is contained in:
dan
2022-12-03 21:24:26 +00:00
parent f6f01f15dd
commit ad23a47acd
6 changed files with 53 additions and 17 deletions
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28
src/vdbeapi.c
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@@ -2206,17 +2206,33 @@ int sqlite3_stmt_scanstatus_v2(
break;
}
case SQLITE_SCANSTAT_NCYCLE: {
i64 res = -1;
if( pScan->aAddrRange[0] ){
i64 res = 0;
if( pScan->aAddrRange[0]==0 ){
res = -1;
}else{
int ii;
res = 0;
for(ii=0; ii<ArraySize(pScan->aAddrRange); ii+=2){
int iIns = pScan->aAddrRange[ii];
int iEnd = pScan->aAddrRange[ii+1];
if( iIns==0 ) break;
while( iIns<=iEnd ){
res += p->anCycle[iIns];
iIns++;
if( iIns>0 ){
while( iIns<=iEnd ){
res += p->anCycle[iIns];
iIns++;
}
}else{
int iOp;
for(iOp=0; iOp<p->nOp; iOp++){
Op *pOp = &p->aOp[iOp];
if( pOp->p1!=iEnd ) continue;
if( pOp->opcode!=OP_VFilter && pOp->opcode!=OP_VColumn
&& pOp->opcode!=OP_Rowid && pOp->opcode!=OP_VOpen
&& pOp->opcode!=OP_VNext
){
continue;
}
res += p->anCycle[iOp];
}
}
}
}