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Use the VList object to replace Parse.azVar for tracking the mapping between

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SQL parameter names and parameter numbers.  There is a performance
improvement, though there are still a few hiccups in the current code.

FossilOrigin-Name: 68ecafa1425a41358c88f41efea3262f1b4490f2
This commit is contained in:
drh
2016-12-23 03:59:31 +00:00
parent 344a1bf133
commit 9bf755cc44
10 changed files with 139 additions and 71 deletions
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src/vdbe.c
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@@ -1190,7 +1190,7 @@ case OP_Variable: { /* out2 */
Mem *pVar; /* Value being transferred */
assert( pOp->p1>0 && pOp->p1<=p->nVar );
assert( pOp->p4.z==0 || pOp->p4.z==p->azVar[pOp->p1-1] );
assert( pOp->p4.z==0 || pOp->p4.z==sqlite3VListNumToName(p->pVList,pOp->p1) );
pVar = &p->aVar[pOp->p1 - 1];
if( sqlite3VdbeMemTooBig(pVar) ){
goto too_big;