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Further improvements to .wheretrace during loop code generation.

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FossilOrigin-Name: c4d5b75c9381255ec8d9a284eedb6b27be46ca868cae5985cf8a5769b15290c3
This commit is contained in:
drh
2019-12-28 14:33:26 +00:00
parent 118efd1626
commit f1bb31e219
3 changed files with 17 additions and 12 deletions
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15
src/wherecode.c
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@@ -1286,12 +1286,16 @@ Bitmask sqlite3WhereCodeOneLoopStart(
VdbeModuleComment((v, "Begin WHERE-loop%d: %s",iLevel,pTabItem->pTab->zName));
#if WHERETRACE_ENABLED /* 0x20800 */
if( sqlite3WhereTrace & 0x800 ){
sqlite3DebugPrintf("Coding level %d: notReady=%llx\n",
iLevel, (u64)notReady);
sqlite3DebugPrintf("Coding level %d of %d: notReady=%llx\n",
iLevel, pWInfo->nLevel, (u64)notReady);
sqlite3WhereLoopPrint(pLoop, pWC);
}
if( sqlite3WhereTrace & 0x20000 ){
sqlite3DebugPrintf("Complete WHERE clause before coding:\n");
if( iLevel==0 ){
sqlite3DebugPrintf("WHERE clause being coded:\n");
sqlite3TreeViewExpr(0, pWInfo->pWhere, 0);
}
sqlite3DebugPrintf("All WHERE-clause terms before coding:\n");
sqlite3WhereClausePrint(pWC);
}
#endif
@@ -2379,13 +2383,13 @@ Bitmask sqlite3WhereCodeOneLoopStart(
if( pTerm->leftCursor!=iCur ) continue;
if( pLevel->iLeftJoin ) continue;
pE = pTerm->pExpr;
assert( !ExprHasProperty(pE, EP_FromJoin) );
#ifdef WHERETRACE_ENABLED /* 0x800 */
if( sqlite3WhereTrace & 0x800 ){
sqlite3DebugPrintf("Coding transitive constraint:\n");
sqlite3WhereTermPrint(pTerm, pWC->nTerm-j);
}
#endif
assert( !ExprHasProperty(pE, EP_FromJoin) );
assert( (pTerm->prereqRight & pLevel->notReady)!=0 );
pAlt = sqlite3WhereFindTerm(pWC, iCur, pTerm->u.leftColumn, notReady,
WO_EQ|WO_IN|WO_IS, 0);
@@ -2429,7 +2433,8 @@ Bitmask sqlite3WhereCodeOneLoopStart(
#if WHERETRACE_ENABLED /* 0x20800 */
if( sqlite3WhereTrace & 0x20000 ){
sqlite3DebugPrintf("Complete WHERE clause after coding level %d:\n",iLevel);
sqlite3DebugPrintf("All WHERE-clause terms after coding level %d:\n",
iLevel);
sqlite3WhereClausePrint(pWC);
}
if( sqlite3WhereTrace & 0x800 ){