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Enhance the sqlite3_stmt_scanstatus() API and add sqlite3_stmt_scanstatus_v2(). For creation of easier to read query performance reports.

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FossilOrigin-Name: 55800833645739efeddcacef464c623931cb6aeb43f4219b4e4faf473c25c8bb
This commit is contained in:
dan
2022-12-02 20:32:22 +00:00
parent bb4e4a4840
commit 231ff4b027
17 changed files with 546 additions and 137 deletions
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7
src/select.c
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@@ -7277,6 +7277,9 @@ int sqlite3Select(
** the same view can reuse the materialization. */
int topAddr;
int onceAddr = 0;
#ifdef SQLITE_ENABLE_STMT_SCANSTATUS
int addrExplain;
#endif
pItem->regReturn = ++pParse->nMem;
topAddr = sqlite3VdbeAddOp0(v, OP_Goto);
@@ -7292,7 +7295,8 @@ int sqlite3Select(
VdbeNoopComment((v, "materialize %!S", pItem));
}
sqlite3SelectDestInit(&dest, SRT_EphemTab, pItem->iCursor);
ExplainQueryPlan((pParse, 1, "MATERIALIZE %!S", pItem));
ExplainQueryPlan2(addrExplain, (pParse, 1, "MATERIALIZE %!S", pItem));
dest.zAffSdst = sqlite3TableAffinityStr(db, pItem->pTab);
sqlite3Select(pParse, pSub, &dest);
sqlite3DbFree(db, dest.zAffSdst);
@@ -7301,6 +7305,7 @@ int sqlite3Select(
if( onceAddr ) sqlite3VdbeJumpHere(v, onceAddr);
sqlite3VdbeAddOp2(v, OP_Return, pItem->regReturn, topAddr+1);
VdbeComment((v, "end %!S", pItem));
sqlite3VdbeScanStatusEnd(v, addrExplain);
sqlite3VdbeJumpHere(v, topAddr);
sqlite3ClearTempRegCache(pParse);
if( pItem->fg.isCte && pItem->fg.isCorrelated==0 ){