diff --git a/arangod/RocksDBEngine/RocksDBCollection.cpp b/arangod/RocksDBEngine/RocksDBCollection.cpp
index 2ff81b43a8..cd56069e0d 100644
--- a/arangod/RocksDBEngine/RocksDBCollection.cpp
+++ b/arangod/RocksDBEngine/RocksDBCollection.cpp
@@ -634,10 +634,11 @@ void RocksDBCollection::truncate(transaction::Methods* trx,
   RocksDBTransactionState* state = rocksutils::toRocksTransactionState(trx);
 
   // delete documents
+  RocksDBMethods* mthd = state->rocksdbMethods();
   RocksDBKeyBounds documentBounds =
       RocksDBKeyBounds::CollectionDocuments(this->objectId());
   
-  RocksDBMethods* mthd = state->rocksdbMethods();
+  rocksdb::Comparator const * cmp = RocksDBColumnFamily::none()->GetComparator();
   rocksdb::ReadOptions ro = mthd->readOptions();
   rocksdb::Slice const end = documentBounds.end();
   ro.iterate_upper_bound = &end;
@@ -645,7 +646,9 @@ void RocksDBCollection::truncate(transaction::Methods* trx,
   std::unique_ptr<rocksdb::Iterator> iter = mthd->NewIterator(ro, RocksDBColumnFamily::none());
   iter->Seek(documentBounds.start());
 
-  while (iter->Valid()) {
+  while (iter->Valid() && cmp->Compare(iter->key(), end) < 0) {
+    TRI_ASSERT(_objectId == RocksDBKey::objectId(iter->key()));
+    
     TRI_voc_rid_t revisionId = RocksDBKey::revisionId(iter->key());
     VPackSlice key =
         VPackSlice(iter->value().data()).get(StaticStrings::KeyString);
@@ -682,106 +685,6 @@ void RocksDBCollection::truncate(transaction::Methods* trx,
   _needToPersistIndexEstimates = true;
 }
 
-/*
-void RocksDBCollection::truncateNoTrx(transaction::Methods* trx) {
-  TRI_ASSERT(_objectId != 0);
-
-  TRI_voc_cid_t cid = _logicalCollection->cid();
-
-  rocksdb::TransactionDB *db = rocksutils::globalRocksDB();
-  rocksdb::WriteBatch batch(32 * 1024 * 1024);
-  // delete documents
-  RocksDBKeyBounds documentBounds =
-  RocksDBKeyBounds::CollectionDocuments(this->objectId());
-  RocksDBTransactionState* state = rocksutils::toRocksTransactionState(trx);
-
-  // isolate against newer writes
-  rocksdb::ReadOptions readOptions;
-  rocksdb::Slice end = documentBounds.end();
-   readOptions.upper_bound = &end;
-  readOptions.snapshot = state->rocksTransaction()->GetSnapshot();
-
-  std::unique_ptr<rocksdb::Iterator> iter(db->NewIterator(RocksDBFamily::none(), readOptions));
-  iter->Seek(documentBounds.start());
-
-  while (iter->Valid()) < 0) {
-    TRI_voc_rid_t revisionId = RocksDBKey::revisionId(iter->key());
-    VPackSlice key =
-    VPackSlice(iter->value().data()).get(StaticStrings::KeyString);
-    TRI_ASSERT(key.isString());
-
-    // add possible log statement
-    state->prepareOperation(cid, revisionId, StringRef(key),
-                            TRI_VOC_DOCUMENT_OPERATION_REMOVE);
-    rocksdb::Status s = rtrx->Delete(iter->key());
-    if (!s.ok()) {
-      auto converted = convertStatus(s);
-      THROW_ARANGO_EXCEPTION(converted);
-    }
-    // report size of key
-    RocksDBOperationResult result =
-    state->addOperation(cid, revisionId, TRI_VOC_DOCUMENT_OPERATION_REMOVE,
-                        0, iter->key().size());
-
-    // transaction size limit reached -- fail
-    if (result.fail()) {
-      THROW_ARANGO_EXCEPTION(result);
-    }
-
-    // force intermediate commit
-    if (result.commitRequired()) {
-      // force commit
-    }
-
-    iter->Next();
-  }
-
-  // delete index items
-
-  // TODO maybe we could also reuse Index::drop, if we ensure the
-  // implementations
-  // don't do anything beyond deleting their contents
-  READ_LOCKER(guard, _indexesLock);
-  for (std::shared_ptr<Index> const& index : _indexes) {
-    RocksDBIndex* rindex = static_cast<RocksDBIndex*>(index.get());
-
-    RocksDBKeyBounds indexBounds = RocksDBKeyBounds::Empty();
-    switch (rindex->type()) {
-      case RocksDBIndex::TRI_IDX_TYPE_PRIMARY_INDEX:
-        indexBounds = RocksDBKeyBounds::PrimaryIndex(rindex->objectId());
-        break;
-      case RocksDBIndex::TRI_IDX_TYPE_EDGE_INDEX:
-        indexBounds = RocksDBKeyBounds::EdgeIndex(rindex->objectId());
-        break;
-
-      case RocksDBIndex::TRI_IDX_TYPE_HASH_INDEX:
-      case RocksDBIndex::TRI_IDX_TYPE_SKIPLIST_INDEX:
-      case RocksDBIndex::TRI_IDX_TYPE_PERSISTENT_INDEX:
-        if (rindex->unique()) {
-          indexBounds = RocksDBKeyBounds::UniqueIndex(rindex->objectId());
-        } else {
-          indexBounds = RocksDBKeyBounds::IndexEntries(rindex->objectId());
-        }
-        break;
-        // TODO add options for geoindex, fulltext etc
-
-      default:
-        THROW_ARANGO_EXCEPTION(TRI_ERROR_NOT_IMPLEMENTED);
-    }
-
-    iter->Seek(indexBounds.start());
-    while (iter->Valid() && cmp->Compare(iter->key(), indexBounds.end()) < 0) {
-      rocksdb::Status s = rtrx->Delete(iter->key());
-      if (!s.ok()) {
-        auto converted = convertStatus(s);
-        THROW_ARANGO_EXCEPTION(converted);
-      }
-
-      iter->Next();
-    }
-  }
-}*/
-
 DocumentIdentifierToken RocksDBCollection::lookupKey(transaction::Methods* trx,
                                                      VPackSlice const& key) {
   TRI_ASSERT(key.isString());
@@ -810,10 +713,13 @@ bool RocksDBCollection::readDocument(transaction::Methods* trx,
                                      DocumentIdentifierToken const& token,
                                      ManagedDocumentResult& result) {
   // TODO: why do we have read(), readDocument() and lookupKey()?
-  auto tkn = static_cast<RocksDBToken const*>(&token);
+  RocksDBToken const* tkn = static_cast<RocksDBToken const*>(&token);
   TRI_voc_rid_t revisionId = tkn->revisionId();
-  auto res = lookupRevisionVPack(revisionId, trx, result, true);
-  return res.ok();
+  if (revisionId != 0) {
+    auto res = lookupRevisionVPack(revisionId, trx, result, true);
+    return res.ok();
+  }
+  return false;
 }
 
 // read using a token, bypassing the cache
@@ -1415,8 +1321,7 @@ RocksDBOperationResult RocksDBCollection::insertDocument(
     res.keySize(key.string().size());
     return res;
   }
-  LOG_TOPIC(ERR, Logger::FIXME) << "PUT " << revisionId << " " << mthd->readOptions().snapshot->GetSequenceNumber();
-  
+
   RocksDBOperationResult innerRes;
   READ_LOCKER(guard, _indexesLock);
   for (std::shared_ptr<Index> const& idx : _indexes) {
@@ -1467,7 +1372,6 @@ RocksDBOperationResult RocksDBCollection::removeDocument(
   // document store, if the doc is overwritten with PUT
   // Simon: actually we do, because otherwise the counter recovery is broken
   // if (!isUpdate) {
-  LOG_TOPIC(ERR, Logger::FIXME) << "DELETE " << revisionId;
   RocksDBMethods* mthd = rocksutils::toRocksMethods(trx);
   RocksDBOperationResult res = mthd->Delete(RocksDBColumnFamily::none(), key);
   if (!res.ok()) {
@@ -1601,7 +1505,10 @@ arangodb::Result RocksDBCollection::lookupRevisionVPack(
 
     mdr.setManaged(std::move(value), revisionId);
   } else {
-    LOG_TOPIC(ERR, Logger::FIXME) << "NOT FOUND " << revisionId << " " << mthd->readOptions().snapshot->GetSequenceNumber();
+    LOG_TOPIC(ERR, Logger::FIXME) << "NOT FOUND rev: " << revisionId << " trx: " << trx->state()->id()
+                                  << " seq: " <<  mthd->readOptions().snapshot->GetSequenceNumber()
+                                  << " objectID " << _objectId
+    << " name: " << _logicalCollection->name();
     mdr.reset();
   }
   return res;
diff --git a/arangod/RocksDBEngine/RocksDBCommon.h b/arangod/RocksDBEngine/RocksDBCommon.h
index 6a2f4229f6..faa6cc520e 100644
--- a/arangod/RocksDBEngine/RocksDBCommon.h
+++ b/arangod/RocksDBEngine/RocksDBCommon.h
@@ -126,7 +126,7 @@ void iterateBounds(
     RocksDBKeyBounds const& bounds, T callback,
     rocksdb::ReadOptions options = rocksdb::ReadOptions()) {
   rocksdb::Slice const end = bounds.end();
-  options.iterate_upper_bound = &end;
+  options.iterate_upper_bound = &end;// save to use on rocksb::DB directly
   std::unique_ptr<rocksdb::Iterator> it(globalRocksDB()->NewIterator(options));
   for (it->Seek(bounds.start()); it->Valid(); it->Next()) {
     callback(it.get());
diff --git a/arangod/RocksDBEngine/RocksDBEngine.cpp b/arangod/RocksDBEngine/RocksDBEngine.cpp
index 2fa6d12d71..1ac3052712 100644
--- a/arangod/RocksDBEngine/RocksDBEngine.cpp
+++ b/arangod/RocksDBEngine/RocksDBEngine.cpp
@@ -264,8 +264,8 @@ void RocksDBEngine::start() {
 
   // create column families
   std::vector<rocksdb::ColumnFamilyDescriptor> columFamilies;
-  columFamilies.emplace_back(rocksdb::kDefaultColumnFamilyName,
-                             rocksdb::ColumnFamilyOptions(_options));
+  rocksdb::ColumnFamilyOptions cfOptions1(_options);
+  columFamilies.emplace_back(rocksdb::kDefaultColumnFamilyName, cfOptions1);
   rocksdb::ColumnFamilyOptions cfOptions2(_options);
   cfOptions2.comparator = _cmp.get();  // only
   columFamilies.emplace_back("IndexValue", cfOptions2);
diff --git a/arangod/RocksDBEngine/RocksDBFulltextIndex.cpp b/arangod/RocksDBEngine/RocksDBFulltextIndex.cpp
index 310985b639..709163b631 100644
--- a/arangod/RocksDBEngine/RocksDBFulltextIndex.cpp
+++ b/arangod/RocksDBEngine/RocksDBFulltextIndex.cpp
@@ -509,17 +509,20 @@ Result RocksDBFulltextIndex::applyQueryToken(transaction::Methods* trx,
   RocksDBMethods* mthds = rocksutils::toRocksMethods(trx);
   // why can't I have an assignment operator when I want one
   RocksDBKeyBounds bounds = MakeBounds(_objectId, token);
-  rocksdb::Slice upper = bounds.end();
+  rocksdb::Slice end = bounds.end();
+  rocksdb::Comparator const* cmp = this->comparator();
 
   rocksdb::ReadOptions ro = mthds->readOptions();
-  ro.iterate_upper_bound = &upper;
+  ro.iterate_upper_bound = &end;
   std::unique_ptr<rocksdb::Iterator> iter = mthds->NewIterator(ro, _cf);
   iter->Seek(bounds.start());
 
   // set is used to perform an intersection with the result set
   std::set<std::string> intersect;
   // apply left to right logic, merging all current results with ALL previous
-  while (iter->Valid()) {
+  while (iter->Valid() && cmp->Compare(iter->key(), end) < 0) {
+    TRI_ASSERT(_objectId == RocksDBKey::objectId(iter->key()));
+    
     rocksdb::Status s = iter->status();
     if (!s.ok()) {
       return rocksutils::convertStatus(s);
diff --git a/arangod/RocksDBEngine/RocksDBIndex.cpp b/arangod/RocksDBEngine/RocksDBIndex.cpp
index 03b82dc6fc..2bd8328d3c 100644
--- a/arangod/RocksDBEngine/RocksDBIndex.cpp
+++ b/arangod/RocksDBEngine/RocksDBIndex.cpp
@@ -195,13 +195,16 @@ void RocksDBIndex::truncate(transaction::Methods* trx) {
   RocksDBKeyBounds indexBounds = getBounds();
 
   rocksdb::ReadOptions options = mthds->readOptions();
-  rocksdb::Slice upperBound = indexBounds.end();
-  options.iterate_upper_bound = &upperBound;
+  rocksdb::Slice end = indexBounds.end();
+  rocksdb::Comparator const* cmp = this->comparator();
+  options.iterate_upper_bound = &end;
 
   std::unique_ptr<rocksdb::Iterator> iter = mthds->NewIterator(options, _cf);
   iter->Seek(indexBounds.start());
 
-  while (iter->Valid()) {
+  while (iter->Valid() && cmp->Compare(iter->key(), end) < 0) {
+    TRI_ASSERT(_objectId == RocksDBKey::objectId(iter->key()));
+    
     Result r = mthds->Delete(_cf, iter->key());
     if (!r.ok()) {
       THROW_ARANGO_EXCEPTION(r);
diff --git a/arangod/RocksDBEngine/RocksDBKey.cpp b/arangod/RocksDBEngine/RocksDBKey.cpp
index d9c71b270f..f41f2578d2 100644
--- a/arangod/RocksDBEngine/RocksDBKey.cpp
+++ b/arangod/RocksDBEngine/RocksDBKey.cpp
@@ -393,9 +393,10 @@ TRI_voc_cid_t RocksDBKey::objectId(char const* data, size_t size) {
     case RocksDBEntryType::EdgeIndexValue:
     case RocksDBEntryType::IndexValue:
     case RocksDBEntryType::UniqueIndexValue:
+    case RocksDBEntryType::FulltextIndexValue:
     case RocksDBEntryType::GeoIndexValue:
     {
-      TRI_ASSERT(size >= (sizeof(char) + (2 * sizeof(uint64_t))));
+      TRI_ASSERT(size >= (sizeof(char) + sizeof(uint64_t)));
       return uint64FromPersistent(data + sizeof(char));
     }
 
diff --git a/arangod/RocksDBEngine/RocksDBMethods.cpp b/arangod/RocksDBEngine/RocksDBMethods.cpp
index 0be59e80d5..38c68fd999 100644
--- a/arangod/RocksDBEngine/RocksDBMethods.cpp
+++ b/arangod/RocksDBEngine/RocksDBMethods.cpp
@@ -23,6 +23,7 @@
 #include "RocksDBMethods.h"
 #include "RocksDBEngine/RocksDBCommon.h"
 #include "RocksDBEngine/RocksDBTransactionState.h"
+#include "Logger/Logger.h"
 
 #include <rocksdb/db.h>
 #include <rocksdb/options.h>
diff --git a/arangod/RocksDBEngine/RocksDBPrimaryIndex.cpp b/arangod/RocksDBEngine/RocksDBPrimaryIndex.cpp
index dac734dac5..726cce48a2 100644
--- a/arangod/RocksDBEngine/RocksDBPrimaryIndex.cpp
+++ b/arangod/RocksDBEngine/RocksDBPrimaryIndex.cpp
@@ -48,6 +48,8 @@
 #include "Transaction/Methods.h"
 #include "VocBase/LogicalCollection.h"
 
+#include "RocksDBEngine/RocksDBPrefixExtractor.h"
+
 #include <rocksdb/iterator.h>
 #include <rocksdb/utilities/transaction.h>
 
@@ -118,8 +120,13 @@ RocksDBAllIndexIterator::RocksDBAllIndexIterator(
     ManagedDocumentResult* mmdr, RocksDBPrimaryIndex const* index, bool reverse)
     : IndexIterator(collection, trx, mmdr, index),
       _reverse(reverse),
+      _bounds(RocksDBKeyBounds::PrimaryIndex(index->objectId())),
       _iterator(),
-      _bounds(RocksDBKeyBounds::PrimaryIndex(index->objectId())) {
+      _cmp(index->comparator())
+#ifdef ARANGODB_ENABLE_MAINTAINER_MODE
+      , _index(index)
+#endif
+{
   // acquire rocksdb transaction
   RocksDBMethods* mthds = rocksutils::toRocksMethods(trx);
   TRI_ASSERT(index->columnFamily()->GetID() == 0);
@@ -130,7 +137,12 @@ RocksDBAllIndexIterator::RocksDBAllIndexIterator(
   TRI_ASSERT(options.prefix_same_as_start);
   options.fill_cache = true;
   _iterator = mthds->NewIterator(options, index->columnFamily());
-
+#ifdef ARANGODB_ENABLE_MAINTAINER_MODE
+  rocksdb::ColumnFamilyDescriptor desc;
+  index->columnFamily()->GetDescriptor(&desc);
+  TRI_ASSERT(desc.options.prefix_extractor);
+#endif
+  
   if (reverse) {
     _iterator->SeekForPrev(_bounds.end());
   } else {
@@ -138,10 +150,19 @@ RocksDBAllIndexIterator::RocksDBAllIndexIterator(
   }
 }
 
+bool RocksDBAllIndexIterator::outOfRange() const {
+  TRI_ASSERT(_trx->state()->isRunning());
+  if (_reverse) {
+    return _cmp->Compare(_iterator->key(), _bounds.start()) < 0;
+  } else {
+    return _cmp->Compare(_iterator->key(), _bounds.end()) > 0;
+  }
+}
+
 bool RocksDBAllIndexIterator::next(TokenCallback const& cb, size_t limit) {
   TRI_ASSERT(_trx->state()->isRunning());
 
-  if (limit == 0 || !_iterator->Valid()) {
+  if (limit == 0 || !_iterator->Valid() || outOfRange()) {
     // No limit no data, or we are actually done. The last call should have
     // returned false
     TRI_ASSERT(limit > 0);  // Someone called with limit == 0. Api broken
@@ -149,6 +170,9 @@ bool RocksDBAllIndexIterator::next(TokenCallback const& cb, size_t limit) {
   }
 
   while (limit > 0) {
+#ifdef ARANGODB_ENABLE_MAINTAINER_MODE
+    TRI_ASSERT(_index->objectId() == RocksDBKey::objectId(_iterator->key()));
+#endif
     RocksDBToken token(RocksDBValue::revisionId(_iterator->value()));
     cb(token);
 
@@ -160,7 +184,7 @@ bool RocksDBAllIndexIterator::next(TokenCallback const& cb, size_t limit) {
       _iterator->Next();
     }
 
-    if (!_iterator->Valid()) {
+    if (!_iterator->Valid() || outOfRange()) {
       return false;
     }
   }
@@ -191,7 +215,7 @@ bool RocksDBAllIndexIterator::nextWithKey(TokenKeyCallback const& cb,
     } else {
       _iterator->Next();
     }
-    if (!_iterator->Valid()) {
+    if (!_iterator->Valid() || outOfRange()) {
       return false;
     }
   }
@@ -239,6 +263,7 @@ RocksDBAnyIndexIterator::RocksDBAnyIndexIterator(
   RocksDBMethods* mthds = rocksutils::toRocksMethods(trx);
   auto options = mthds->readOptions();
   TRI_ASSERT(options.snapshot != nullptr);
+  TRI_ASSERT(options.prefix_same_as_start);
   options.fill_cache = false;
   _iterator = mthds->NewIterator(options, index->columnFamily());
   
@@ -266,7 +291,7 @@ RocksDBAnyIndexIterator::RocksDBAnyIndexIterator(
 bool RocksDBAnyIndexIterator::next(TokenCallback const& cb, size_t limit) {
   TRI_ASSERT(_trx->state()->isRunning());
 
-  if (limit == 0 || !_iterator->Valid()) {
+  if (limit == 0 || !_iterator->Valid() || outOfRange()) {
     // No limit no data, or we are actually done. The last call should have
     // returned false
     TRI_ASSERT(limit > 0);  // Someone called with limit == 0. Api broken
@@ -280,7 +305,7 @@ bool RocksDBAnyIndexIterator::next(TokenCallback const& cb, size_t limit) {
     --limit;
     _returned++;
     _iterator->Next();
-    if (!_iterator->Valid()) {
+    if (!_iterator->Valid() || outOfRange()) {
       if (_returned < _total) {
         _iterator->Seek(_bounds.start());
         continue;
@@ -293,6 +318,10 @@ bool RocksDBAnyIndexIterator::next(TokenCallback const& cb, size_t limit) {
 
 void RocksDBAnyIndexIterator::reset() { _iterator->Seek(_bounds.start()); }
 
+bool RocksDBAnyIndexIterator::outOfRange() const {
+  return _cmp->Compare(_iterator->key(), _bounds.end()) > 0;
+}
+
 // ================ PrimaryIndex ================
 
 RocksDBPrimaryIndex::RocksDBPrimaryIndex(
diff --git a/arangod/RocksDBEngine/RocksDBPrimaryIndex.h b/arangod/RocksDBEngine/RocksDBPrimaryIndex.h
index 053bde8f01..5b74b84da8 100644
--- a/arangod/RocksDBEngine/RocksDBPrimaryIndex.h
+++ b/arangod/RocksDBEngine/RocksDBPrimaryIndex.h
@@ -93,9 +93,15 @@ class RocksDBAllIndexIterator final : public IndexIterator {
   void seek(StringRef const& key);
 
  private:
+  bool outOfRange() const;
+  
   bool const _reverse;
-  std::unique_ptr<rocksdb::Iterator> _iterator;
   RocksDBKeyBounds const _bounds;
+  std::unique_ptr<rocksdb::Iterator> _iterator;
+  rocksdb::Comparator const* _cmp;
+#ifdef ARANGODB_ENABLE_MAINTAINER_MODE
+  RocksDBPrimaryIndex const* _index;
+#endif
 };
 
 class RocksDBAnyIndexIterator final : public IndexIterator {
diff --git a/arangod/RocksDBEngine/RocksDBTransactionState.cpp b/arangod/RocksDBEngine/RocksDBTransactionState.cpp
index 3e6f0c75d7..cfc637b1af 100644
--- a/arangod/RocksDBEngine/RocksDBTransactionState.cpp
+++ b/arangod/RocksDBEngine/RocksDBTransactionState.cpp
@@ -146,9 +146,8 @@ Result RocksDBTransactionState::beginTransaction(transaction::Hints hints) {
       _rocksMethods.reset(new RocksDBReadOnlyMethods(this));
     } else {
       createTransaction();
-      bool intermediate = hasHint(transaction::Hints::Hint::INTERMEDIATE_COMMIT);
       bool readWrites = hasHint(transaction::Hints::Hint::READ_WRITES);
-      if (intermediate && !readWrites) {
+      if (_intermediateTransactionEnabled && !readWrites) {
         _snapshot = db->GetSnapshot(); // we must call ReleaseSnapshot at some point
         _rocksReadOptions.snapshot = _snapshot;
         TRI_ASSERT(_snapshot != nullptr);
@@ -448,16 +447,14 @@ RocksDBOperationResult RocksDBTransactionState::addOperation(
       (_intermediateTransactionNumber <= numOperations ||
        _intermediateTransactionSize <= newSize)) {
     //res.commitRequired(true);
-      if (hasHint(transaction::Hints::Hint::INTERMEDIATE_COMMIT)) {
-        internalCommit();
-        _numInserts = 0;
-        _numUpdates = 0;
-        _numRemoves = 0;
+      internalCommit();
+      _numInserts = 0;
+      _numUpdates = 0;
+      _numRemoves = 0;
 #ifdef ARANGODB_ENABLE_MAINTAINER_MODE
-        _numLogdata = 0;
+      _numLogdata = 0;
 #endif
-        createTransaction();
-      } // TODO what else?
+      createTransaction();
     }
 
   return res;
diff --git a/arangod/RocksDBEngine/RocksDBVPackIndex.cpp b/arangod/RocksDBEngine/RocksDBVPackIndex.cpp
index 983d03c818..7af14ef07f 100644
--- a/arangod/RocksDBEngine/RocksDBVPackIndex.cpp
+++ b/arangod/RocksDBEngine/RocksDBVPackIndex.cpp
@@ -120,15 +120,17 @@ void RocksDBVPackIndexIterator::reset() {
 
 bool RocksDBVPackIndexIterator::outOfRange() const {
   TRI_ASSERT(_trx->state()->isRunning());
-  TRI_ASSERT(_reverse);
-
-  return (_cmp->Compare(_iterator->key(), _bounds.start()) < 0);
+  if (_reverse) {
+    return (_cmp->Compare(_iterator->key(), _bounds.start()) < 0);
+  } else {
+    return (_cmp->Compare(_iterator->key(), _bounds.end()) > 0);
+  }
 }
 
 bool RocksDBVPackIndexIterator::next(TokenCallback const& cb, size_t limit) {
   TRI_ASSERT(_trx->state()->isRunning());
 
-  if (limit == 0 || !_iterator->Valid() || (_reverse && outOfRange())) {
+  if (limit == 0 || !_iterator->Valid() || outOfRange()) {
     // No limit no data, or we are actually done. The last call should have
     // returned false
     TRI_ASSERT(limit > 0);  // Someone called with limit == 0. Api broken
@@ -136,6 +138,8 @@ bool RocksDBVPackIndexIterator::next(TokenCallback const& cb, size_t limit) {
   }
 
   while (limit > 0) {
+    TRI_ASSERT(_index->objectId() == RocksDBKey::objectId(_iterator->key()));
+    
     StringRef primaryKey = _index->_unique
                                ? RocksDBValue::primaryKey(_iterator->value())
                                : RocksDBKey::primaryKey(_iterator->key());
@@ -150,7 +154,7 @@ bool RocksDBVPackIndexIterator::next(TokenCallback const& cb, size_t limit) {
       _iterator->Next();
     }
 
-    if (!_iterator->Valid() || (_reverse && outOfRange())) {
+    if (!_iterator->Valid() || outOfRange()) {
       return false;
     }
   }
diff --git a/arangod/Transaction/Hints.h b/arangod/Transaction/Hints.h
index cad3911ade..825f112c11 100644
--- a/arangod/Transaction/Hints.h
+++ b/arangod/Transaction/Hints.h
@@ -47,8 +47,7 @@ class Hints {
     NO_USAGE_LOCK = 256,
     RECOVERY = 512,
     NO_DLD = 1024, // disable deadlock detection
-    INTERMEDIATE_COMMIT = 2048, // allow intermediate commits
-    READ_WRITES = 4096 // do not use snapshot
+    READ_WRITES = 2048 // do not use snapshot
   };
 
   Hints() : _value(0) {}