void CollectionInfoCache::computeIndexKeys() {
DEV Lock::assertWriteLocked( _collection->ns().ns() );
_indexedPaths.clear();
IndexCatalog::IndexIterator i = _collection->getIndexCatalog()->getIndexIterator(true);
while (i.more()) {
IndexDescriptor* descriptor = i.next();
if (descriptor->getAccessMethodName() != IndexNames::TEXT) {
BSONObj key = descriptor->keyPattern();
BSONObjIterator j(key);
while (j.more()) {
BSONElement e = j.next();
_indexedPaths.addPath(e.fieldName());
}
}
else {
fts::FTSSpec ftsSpec(descriptor->infoObj());
if (ftsSpec.wildcard()) {
_indexedPaths.allPathsIndexed();
}
else {
for (size_t i = 0; i < ftsSpec.numExtraBefore(); ++i) {
_indexedPaths.addPath(ftsSpec.extraBefore(i));
}
for (fts::Weights::const_iterator it = ftsSpec.weights().begin();
it != ftsSpec.weights().end();
++it) {
_indexedPaths.addPath(it->first);
}
for (size_t i = 0; i < ftsSpec.numExtraAfter(); ++i) {
_indexedPaths.addPath(ftsSpec.extraAfter(i));
}
// Any update to a path containing "language" as a component could change the
// language of a subdocument. Add the override field as a path component.
_indexedPaths.addPathComponent(ftsSpec.languageOverrideField());
}
}
}
_keysComputed = true;
}
void CollectionInfoCacheImpl::computeIndexKeys(OperationContext* opCtx) {
_indexedPaths.clear();
bool hadTTLIndex = _hasTTLIndex;
_hasTTLIndex = false;
std::unique_ptr<IndexCatalog::IndexIterator> it =
_collection->getIndexCatalog()->getIndexIterator(opCtx, true);
while (it->more()) {
const IndexCatalogEntry* entry = it->next();
const IndexDescriptor* descriptor = entry->descriptor();
const IndexAccessMethod* iam = entry->accessMethod();
if (descriptor->getAccessMethodName() == IndexNames::WILDCARD) {
// Obtain the projection used by the $** index's key generator.
const auto* pathProj =
static_cast<const WildcardAccessMethod*>(iam)->getProjectionExec();
// If the projection is an exclusion, then we must check the new document's keys on all
// updates, since we do not exhaustively know the set of paths to be indexed.
if (pathProj->getType() == ProjectionExecAgg::ProjectionType::kExclusionProjection) {
_indexedPaths.allPathsIndexed();
} else {
// If a subtree was specified in the keyPattern, or if an inclusion projection is
// present, then we need only index the path(s) preserved by the projection.
for (const auto& path : pathProj->getExhaustivePaths()) {
_indexedPaths.addPath(path);
}
}
} else if (descriptor->getAccessMethodName() == IndexNames::TEXT) {
fts::FTSSpec ftsSpec(descriptor->infoObj());
if (ftsSpec.wildcard()) {
_indexedPaths.allPathsIndexed();
} else {
for (size_t i = 0; i < ftsSpec.numExtraBefore(); ++i) {
_indexedPaths.addPath(FieldRef(ftsSpec.extraBefore(i)));
}
for (fts::Weights::const_iterator it = ftsSpec.weights().begin();
it != ftsSpec.weights().end();
++it) {
_indexedPaths.addPath(FieldRef(it->first));
}
for (size_t i = 0; i < ftsSpec.numExtraAfter(); ++i) {
_indexedPaths.addPath(FieldRef(ftsSpec.extraAfter(i)));
}
// Any update to a path containing "language" as a component could change the
// language of a subdocument. Add the override field as a path component.
_indexedPaths.addPathComponent(ftsSpec.languageOverrideField());
}
} else {
BSONObj key = descriptor->keyPattern();
const BSONObj& infoObj = descriptor->infoObj();
if (infoObj.hasField("expireAfterSeconds")) {
_hasTTLIndex = true;
}
BSONObjIterator j(key);
while (j.more()) {
BSONElement e = j.next();
_indexedPaths.addPath(FieldRef(e.fieldName()));
}
}
// handle partial indexes
const MatchExpression* filter = entry->getFilterExpression();
if (filter) {
stdx::unordered_set<std::string> paths;
QueryPlannerIXSelect::getFields(filter, &paths);
for (auto it = paths.begin(); it != paths.end(); ++it) {
_indexedPaths.addPath(FieldRef(*it));
}
}
}
TTLCollectionCache& ttlCollectionCache = TTLCollectionCache::get(getGlobalServiceContext());
if (_hasTTLIndex != hadTTLIndex) {
if (_hasTTLIndex) {
ttlCollectionCache.registerCollection(_collection->ns());
} else {
ttlCollectionCache.unregisterCollection(_collection->ns());
}
}
_keysComputed = true;
}
void CollectionInfoCache::computeIndexKeys(OperationContext* opCtx) {
_indexedPaths.clear();
bool hadTTLIndex = _hasTTLIndex;
_hasTTLIndex = false;
IndexCatalog::IndexIterator i = _collection->getIndexCatalog()->getIndexIterator(opCtx, true);
while (i.more()) {
IndexDescriptor* descriptor = i.next();
if (descriptor->getAccessMethodName() != IndexNames::TEXT) {
BSONObj key = descriptor->keyPattern();
const BSONObj& infoObj = descriptor->infoObj();
if (infoObj.hasField("expireAfterSeconds")) {
_hasTTLIndex = true;
}
BSONObjIterator j(key);
while (j.more()) {
BSONElement e = j.next();
_indexedPaths.addPath(e.fieldName());
}
} else {
fts::FTSSpec ftsSpec(descriptor->infoObj());
if (ftsSpec.wildcard()) {
_indexedPaths.allPathsIndexed();
} else {
for (size_t i = 0; i < ftsSpec.numExtraBefore(); ++i) {
_indexedPaths.addPath(ftsSpec.extraBefore(i));
}
for (fts::Weights::const_iterator it = ftsSpec.weights().begin();
it != ftsSpec.weights().end();
++it) {
_indexedPaths.addPath(it->first);
}
for (size_t i = 0; i < ftsSpec.numExtraAfter(); ++i) {
_indexedPaths.addPath(ftsSpec.extraAfter(i));
}
// Any update to a path containing "language" as a component could change the
// language of a subdocument. Add the override field as a path component.
_indexedPaths.addPathComponent(ftsSpec.languageOverrideField());
}
}
// handle partial indexes
const IndexCatalogEntry* entry = i.catalogEntry(descriptor);
const MatchExpression* filter = entry->getFilterExpression();
if (filter) {
unordered_set<std::string> paths;
QueryPlannerIXSelect::getFields(filter, "", &paths);
for (auto it = paths.begin(); it != paths.end(); ++it) {
_indexedPaths.addPath(*it);
}
}
}
TTLCollectionCache& ttlCollectionCache = TTLCollectionCache::get(getGlobalServiceContext());
if (_hasTTLIndex != hadTTLIndex) {
if (_hasTTLIndex) {
ttlCollectionCache.registerCollection(_collection->ns());
} else {
ttlCollectionCache.unregisterCollection(_collection->ns());
}
}
_keysComputed = true;
}
