From fe845d4b7a2015ea698b5754c903fd0cdc2c10cb Mon Sep 17 00:00:00 2001
From: Jan Steemann <jan@arangodb.com>
Date: Mon, 11 Jul 2016 13:42:14 +0200
Subject: [PATCH] respond with better error message

---
 arangod/VocBase/document-collection.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arangod/VocBase/document-collection.cpp b/arangod/VocBase/document-collection.cpp
index 66cde165ae..86df815cee 100644
--- a/arangod/VocBase/document-collection.cpp
+++ b/arangod/VocBase/document-collection.cpp
@@ -3365,7 +3365,7 @@ int TRI_document_collection_t::update(Transaction* trx,
   if (!newSlice.isObject()) {
     return TRI_ERROR_ARANGO_DOCUMENT_TYPE_INVALID;
   }
-  
+ 
   // initialize the result
   TRI_ASSERT(mptr != nullptr);
   mptr->setVPack(nullptr);
@@ -3832,7 +3832,7 @@ int TRI_document_collection_t::lookupDocument(
     TRI_doc_mptr_t*& header) {
   
   if (!key.isString()) {
-    return TRI_ERROR_INTERNAL;
+    return TRI_ERROR_ARANGO_DOCUMENT_KEY_BAD;
   }
 
   header = primaryIndex()->lookupKey(trx, key);