Пример #1
0
    // static
    Status PlanCacheListQueryShapes::list(const PlanCache& planCache, BSONObjBuilder* bob) {
        invariant(bob);

        // Fetch all cached solutions from plan cache.
        vector<PlanCacheEntry*> solutions = planCache.getAllEntries();

        BSONArrayBuilder arrayBuilder(bob->subarrayStart("shapes"));
        for (vector<PlanCacheEntry*>::const_iterator i = solutions.begin(); i != solutions.end(); i++) {
            PlanCacheEntry* entry = *i;
            invariant(entry);

            BSONObjBuilder shapeBuilder(arrayBuilder.subobjStart());
            shapeBuilder.append("query", entry->query);
            shapeBuilder.append("sort", entry->sort);
            shapeBuilder.append("projection", entry->projection);
            shapeBuilder.doneFast();

            // Release resources for cached solution after extracting query shape.
            delete entry;
        }
        arrayBuilder.doneFast();

        return Status::OK();
    }
// static
Status PlanCacheListQueryShapes::list(const PlanCache& planCache, BSONObjBuilder* bob) {
    invariant(bob);

    // Fetch all cached solutions from plan cache.
    auto entries = planCache.getAllEntries();

    BSONArrayBuilder arrayBuilder(bob->subarrayStart("shapes"));
    for (auto&& entry : entries) {
        invariant(entry);

        BSONObjBuilder shapeBuilder(arrayBuilder.subobjStart());
        shapeBuilder.append("query", entry->query);
        shapeBuilder.append("sort", entry->sort);
        shapeBuilder.append("projection", entry->projection);
        if (!entry->collation.isEmpty()) {
            shapeBuilder.append("collation", entry->collation);
        }
        shapeBuilder.append("queryHash", unsignedIntToFixedLengthHex(entry->queryHash));
        shapeBuilder.doneFast();
    }
    arrayBuilder.doneFast();

    return Status::OK();
}