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Make a separate limb in the EXPLAIN QUERY PLAN output for the various lines

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associated with the OR-optimization.

FossilOrigin-Name: 75ac7b4e4fd0811ca80c719badacff207e0bbd00ac64dde3b3d4ec676fad472d
This commit is contained in:
drh
2018-05-04 00:39:43 +00:00
parent 4388522561
commit 5d72d9245d
11 changed files with 66 additions and 49 deletions
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2
src/wherecode.c
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@@ -1934,6 +1934,7 @@ Bitmask sqlite3WhereCodeOneLoopStart(
** sub-WHERE clause is to to invoke the main loop body as a subroutine.
*/
wctrlFlags = WHERE_OR_SUBCLAUSE | (pWInfo->wctrlFlags & WHERE_SEEK_TABLE);
ExplainQueryPlan((pParse, 1, "MULTI-INDEX OR"));
for(ii=0; ii<pOrWc->nTerm; ii++){
WhereTerm *pOrTerm = &pOrWc->a[ii];
if( pOrTerm->leftCursor==iCur || (pOrTerm->eOperator & WO_AND)!=0 ){
@@ -2054,6 +2055,7 @@ Bitmask sqlite3WhereCodeOneLoopStart(
}
}
}
ExplainQueryPlanPop(pParse);
pLevel->u.pCovidx = pCov;
if( pCov ) pLevel->iIdxCur = iCovCur;
if( pAndExpr ){