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Use separate opcodes, OP_AggValue and OP_AggInverse, for the new callbacks

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associated with Window Functions, for improved readability of EXPLAIN
output.

FossilOrigin-Name: fa6538050938ffeb042fbee31512514d6d3ace514b2a3dfd8365bbeb13f35a78
This commit is contained in:
drh
2018-07-05 21:22:57 +00:00
parent 6ea9a7282a
commit 8f26da6c5b
6 changed files with 69 additions and 40 deletions
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src/select.c
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@@ -5187,7 +5187,7 @@ static void updateAccumulator(Parse *pParse, int regAcc, AggInfo *pAggInfo){
if( regHit==0 && pAggInfo->nAccumulator ) regHit = ++pParse->nMem;
sqlite3VdbeAddOp4(v, OP_CollSeq, regHit, 0, 0, (char *)pColl, P4_COLLSEQ);
}
sqlite3VdbeAddOp3(v, OP_AggStep0, 0, regAgg, pF->iMem);
sqlite3VdbeAddOp3(v, OP_AggStep, 0, regAgg, pF->iMem);
sqlite3VdbeAppendP4(v, pF->pFunc, P4_FUNCDEF);
sqlite3VdbeChangeP5(v, (u8)nArg);
sqlite3ExprCacheAffinityChange(pParse, regAgg, nArg);