void IndexCatalogEntry::setMultikey() {
if ( isMultikey() )
return;
NamespaceDetails* nsd = _collection->detailsWritable();
int idxNo = _indexNo();
if ( nsd->setIndexIsMultikey( idxNo, true ) ) {
LOG(1) << _collection->ns().ns() << ": clearing plan cache - index "
<< _descriptor->keyPattern() << " set to multi key.";
_collection->infoCache()->clearQueryCache();
}
_isMultikey = true;
}
void run() {
create();
NamespaceDetails *nsd = collection()->detailsWritable();
DurTransaction txn;
// Set 2 & 54 as multikey
nsd->setIndexIsMultikey(&txn, 2, true);
nsd->setIndexIsMultikey(&txn, 54, true);
ASSERT(nsd->isMultikey(2));
ASSERT(nsd->isMultikey(54));
// Flip 2 & 47
nsd->setIndexIsMultikey(&txn, 2, false);
nsd->setIndexIsMultikey(&txn, 47, true);
ASSERT(!nsd->isMultikey(2));
ASSERT(nsd->isMultikey(47));
// Reset entries that are already true
nsd->setIndexIsMultikey(&txn, 54, true);
nsd->setIndexIsMultikey(&txn, 47, true);
ASSERT(nsd->isMultikey(54));
ASSERT(nsd->isMultikey(47));
// Two non-multi-key
nsd->setIndexIsMultikey(&txn, 2, false);
nsd->setIndexIsMultikey(&txn, 43, false);
ASSERT(!nsd->isMultikey(2));
ASSERT(nsd->isMultikey(54));
ASSERT(nsd->isMultikey(47));
ASSERT(!nsd->isMultikey(43));
}
void getIndexChanges(vector<IndexChanges>& v, NamespaceDetails& d, BSONObj newObj, BSONObj oldObj, bool &changedId) {
int z = d.nIndexesBeingBuilt();
v.resize(z);
for( int i = 0; i < z; i++ ) {
IndexDetails& idx = d.idx(i);
BSONObj idxKey = idx.info.obj().getObjectField("key"); // eg { ts : 1 }
IndexChanges& ch = v[i];
idx.getKeysFromObject(oldObj, ch.oldkeys);
idx.getKeysFromObject(newObj, ch.newkeys);
if( ch.newkeys.size() > 1 )
d.setIndexIsMultikey(i);
setDifference(ch.oldkeys, ch.newkeys, ch.removed);
setDifference(ch.newkeys, ch.oldkeys, ch.added);
if ( ch.removed.size() > 0 && ch.added.size() > 0 && idx.isIdIndex() ) {
changedId = true;
}
}
}