diff options
Diffstat (limited to 'src/mongo/db')
| -rw-r--r-- | src/mongo/db/query/plan_ranker.cpp | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/src/mongo/db/query/plan_ranker.cpp b/src/mongo/db/query/plan_ranker.cpp index 4d3069fb47a..ff2e636a28a 100644 --- a/src/mongo/db/query/plan_ranker.cpp +++ b/src/mongo/db/query/plan_ranker.cpp @@ -242,14 +242,16 @@ double PlanRanker::scoreTree(const PlanStageStats* stats) { double tieBreakers = noFetchBonus + noSortBonus + noIxisectBonus; double score = baseScore + productivity + tieBreakers; - str::stream ss; - ss << "score(" << score << ") = baseScore(" << baseScore << ")" + StringBuilder sb; + sb << "score(" << str::convertDoubleToString(score) << ") = baseScore(" + << str::convertDoubleToString(baseScore) << ")" << " + productivity((" << stats->common.advanced << " advanced)/(" << stats->common.works - << " works) = " << productivity << ")" - << " + tieBreakers(" << noFetchBonus << " noFetchBonus + " << noSortBonus - << " noSortBonus + " << noIxisectBonus << " noIxisectBonus = " << tieBreakers << ")"; - std::string scoreStr = ss; - LOG(2) << scoreStr; + << " works) = " << str::convertDoubleToString(productivity) << ")" + << " + tieBreakers(" << str::convertDoubleToString(noFetchBonus) << " noFetchBonus + " + << str::convertDoubleToString(noSortBonus) << " noSortBonus + " + << str::convertDoubleToString(noIxisectBonus) + << " noIxisectBonus = " << str::convertDoubleToString(tieBreakers) << ")"; + LOG(2) << sb.str(); if (internalQueryForceIntersectionPlans.load()) { if (hasStage(STAGE_AND_HASH, stats) || hasStage(STAGE_AND_SORTED, stats)) { |