From 69131a2fd3dbbad6a0b71d608ee856cfa905eb41 Mon Sep 17 00:00:00 2001
From: Kaveh Vahedipour <kaveh@arangodb.com>
Date: Mon, 31 Oct 2016 14:35:15 +0100
Subject: [PATCH] well tested auto adaptation

---
 arangod/Agency/Inception.cpp |   2 +-
 arangod/Aql/grammar.cpp      | 870 +++++++++++++++++------------------
 arangod/Aql/grammar.h        |   4 +-
 3 files changed, 438 insertions(+), 438 deletions(-)

diff --git a/arangod/Agency/Inception.cpp b/arangod/Agency/Inception.cpp
index f3f0d961cd..7d6ccc1aa6 100644
--- a/arangod/Agency/Inception.cpp
+++ b/arangod/Agency/Inception.cpp
@@ -439,7 +439,7 @@ bool Inception::estimateRAFTInterval() {
       }
     }
     
-    maxmean = 1.0e-2*std::ceil(100*(.15 + 1.0e-3*maxmean));
+    maxmean = 1.e-3*std::ceil(1.e3*(.1 + 1.0e-3*(maxmean+maxstdev)));
     
     LOG_TOPIC(INFO, Logger::AGENCY)
       << "Auto-adapting RAFT timing to: {" << maxmean
diff --git a/arangod/Aql/grammar.cpp b/arangod/Aql/grammar.cpp
index d938080cb6..c2f89f3e3e 100644
--- a/arangod/Aql/grammar.cpp
+++ b/arangod/Aql/grammar.cpp
@@ -2090,15 +2090,15 @@ yyreduce:
   switch (yyn)
     {
         case 2:
-#line 368 "Aql/grammar.y" /* yacc.c:1646  */
+#line 368 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeValueString((yyvsp[0].strval).value, (yyvsp[0].strval).length);
     }
-#line 2098 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2098 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 3:
-#line 371 "Aql/grammar.y" /* yacc.c:1646  */
+#line 371 "Aql/grammar.y" /* yacc.c:1661  */
     {
       char const* p = (yyvsp[0].node)->getStringValue();
       size_t const len = (yyvsp[0].node)->getStringLength();
@@ -2107,271 +2107,271 @@ yyreduce:
       }
       (yyval.node) = (yyvsp[0].node);
     }
-#line 2111 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2111 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 4:
-#line 382 "Aql/grammar.y" /* yacc.c:1646  */
+#line 382 "Aql/grammar.y" /* yacc.c:1661  */
     {
        auto node = static_cast<AstNode*>(parser->peekStack());
        node->addMember((yyvsp[0].node));
      }
-#line 2120 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2120 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 5:
-#line 386 "Aql/grammar.y" /* yacc.c:1646  */
+#line 386 "Aql/grammar.y" /* yacc.c:1661  */
     {
        auto node = static_cast<AstNode*>(parser->peekStack());
        node->addMember((yyvsp[0].node));
      }
-#line 2129 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2129 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 6:
-#line 390 "Aql/grammar.y" /* yacc.c:1646  */
+#line 390 "Aql/grammar.y" /* yacc.c:1661  */
     {
        auto node = static_cast<AstNode*>(parser->peekStack());
        node->addMember((yyvsp[0].node));
      }
-#line 2138 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2138 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 7:
-#line 397 "Aql/grammar.y" /* yacc.c:1646  */
+#line 397 "Aql/grammar.y" /* yacc.c:1661  */
     {
      }
-#line 2145 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2145 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 8:
-#line 399 "Aql/grammar.y" /* yacc.c:1646  */
+#line 399 "Aql/grammar.y" /* yacc.c:1661  */
     {
       auto node = parser->ast()->createNodeArray();
       parser->pushStack(node);
      }
-#line 2154 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2154 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 9:
-#line 402 "Aql/grammar.y" /* yacc.c:1646  */
+#line 402 "Aql/grammar.y" /* yacc.c:1661  */
     {
       auto node = static_cast<AstNode*>(parser->popStack());
       auto withNode = parser->ast()->createNodeWithCollections(node);
       parser->ast()->addOperation(withNode);
      }
-#line 2164 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2164 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 10:
-#line 410 "Aql/grammar.y" /* yacc.c:1646  */
+#line 410 "Aql/grammar.y" /* yacc.c:1661  */
     {
     }
-#line 2171 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2171 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 11:
-#line 415 "Aql/grammar.y" /* yacc.c:1646  */
+#line 415 "Aql/grammar.y" /* yacc.c:1661  */
     {
     }
-#line 2178 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2178 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 12:
-#line 420 "Aql/grammar.y" /* yacc.c:1646  */
+#line 420 "Aql/grammar.y" /* yacc.c:1661  */
     {
     }
-#line 2185 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2185 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 13:
-#line 422 "Aql/grammar.y" /* yacc.c:1646  */
+#line 422 "Aql/grammar.y" /* yacc.c:1661  */
     {
       parser->ast()->scopes()->endNested();
     }
-#line 2193 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2193 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 14:
-#line 425 "Aql/grammar.y" /* yacc.c:1646  */
+#line 425 "Aql/grammar.y" /* yacc.c:1661  */
     {
       parser->ast()->scopes()->endNested();
     }
-#line 2201 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2201 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 15:
-#line 428 "Aql/grammar.y" /* yacc.c:1646  */
+#line 428 "Aql/grammar.y" /* yacc.c:1661  */
     {
       parser->ast()->scopes()->endNested();
     }
-#line 2209 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2209 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 16:
-#line 431 "Aql/grammar.y" /* yacc.c:1646  */
+#line 431 "Aql/grammar.y" /* yacc.c:1661  */
     {
       parser->ast()->scopes()->endNested();
     }
-#line 2217 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2217 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 17:
-#line 434 "Aql/grammar.y" /* yacc.c:1646  */
+#line 434 "Aql/grammar.y" /* yacc.c:1661  */
     {
       parser->ast()->scopes()->endNested();
     }
-#line 2225 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2225 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 18:
-#line 440 "Aql/grammar.y" /* yacc.c:1646  */
+#line 440 "Aql/grammar.y" /* yacc.c:1661  */
     {
     }
-#line 2232 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2232 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 19:
-#line 442 "Aql/grammar.y" /* yacc.c:1646  */
+#line 442 "Aql/grammar.y" /* yacc.c:1661  */
     {
     }
-#line 2239 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2239 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 20:
-#line 447 "Aql/grammar.y" /* yacc.c:1646  */
+#line 447 "Aql/grammar.y" /* yacc.c:1661  */
     {
     }
-#line 2246 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2246 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 21:
-#line 449 "Aql/grammar.y" /* yacc.c:1646  */
+#line 449 "Aql/grammar.y" /* yacc.c:1661  */
     {
     }
-#line 2253 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2253 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 22:
-#line 451 "Aql/grammar.y" /* yacc.c:1646  */
+#line 451 "Aql/grammar.y" /* yacc.c:1661  */
     {
     }
-#line 2260 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2260 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 23:
-#line 453 "Aql/grammar.y" /* yacc.c:1646  */
+#line 453 "Aql/grammar.y" /* yacc.c:1661  */
     {
     }
-#line 2267 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2267 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 24:
-#line 455 "Aql/grammar.y" /* yacc.c:1646  */
+#line 455 "Aql/grammar.y" /* yacc.c:1661  */
     {
     }
-#line 2274 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2274 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 25:
-#line 457 "Aql/grammar.y" /* yacc.c:1646  */
+#line 457 "Aql/grammar.y" /* yacc.c:1661  */
     {
     }
-#line 2281 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2281 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 26:
-#line 459 "Aql/grammar.y" /* yacc.c:1646  */
+#line 459 "Aql/grammar.y" /* yacc.c:1661  */
     {
     }
-#line 2288 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2288 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 27:
-#line 461 "Aql/grammar.y" /* yacc.c:1646  */
+#line 461 "Aql/grammar.y" /* yacc.c:1661  */
     {
     }
-#line 2295 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2295 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 28:
-#line 463 "Aql/grammar.y" /* yacc.c:1646  */
+#line 463 "Aql/grammar.y" /* yacc.c:1661  */
     {
     }
-#line 2302 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2302 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 29:
-#line 465 "Aql/grammar.y" /* yacc.c:1646  */
+#line 465 "Aql/grammar.y" /* yacc.c:1661  */
     {
     }
-#line 2309 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2309 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 30:
-#line 467 "Aql/grammar.y" /* yacc.c:1646  */
+#line 467 "Aql/grammar.y" /* yacc.c:1661  */
     {
     }
-#line 2316 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2316 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 31:
-#line 472 "Aql/grammar.y" /* yacc.c:1646  */
+#line 472 "Aql/grammar.y" /* yacc.c:1661  */
     {
       parser->ast()->scopes()->start(arangodb::aql::AQL_SCOPE_FOR);
      
       auto node = parser->ast()->createNodeFor((yyvsp[-2].strval).value, (yyvsp[-2].strval).length, (yyvsp[0].node), true);
       parser->ast()->addOperation(node);
     }
-#line 2327 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2327 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 32:
-#line 478 "Aql/grammar.y" /* yacc.c:1646  */
+#line 478 "Aql/grammar.y" /* yacc.c:1661  */
     {
     }
-#line 2334 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2334 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 33:
-#line 480 "Aql/grammar.y" /* yacc.c:1646  */
+#line 480 "Aql/grammar.y" /* yacc.c:1661  */
     {
     }
-#line 2341 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2341 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 34:
-#line 485 "Aql/grammar.y" /* yacc.c:1646  */
+#line 485 "Aql/grammar.y" /* yacc.c:1661  */
     {
       parser->ast()->scopes()->start(arangodb::aql::AQL_SCOPE_FOR);
       auto node = parser->ast()->createNodeTraversal((yyvsp[-5].strval).value, (yyvsp[-5].strval).length, (yyvsp[-3].node), (yyvsp[-2].node), (yyvsp[-1].node), (yyvsp[0].node));
       parser->ast()->addOperation(node);
     }
-#line 2351 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2351 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 35:
-#line 490 "Aql/grammar.y" /* yacc.c:1646  */
+#line 490 "Aql/grammar.y" /* yacc.c:1661  */
     {
       parser->ast()->scopes()->start(arangodb::aql::AQL_SCOPE_FOR);
       auto node = parser->ast()->createNodeTraversal((yyvsp[-7].strval).value, (yyvsp[-7].strval).length, (yyvsp[-5].strval).value, (yyvsp[-5].strval).length, (yyvsp[-3].node), (yyvsp[-2].node), (yyvsp[-1].node), (yyvsp[0].node));
       parser->ast()->addOperation(node);
     }
-#line 2361 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2361 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 36:
-#line 495 "Aql/grammar.y" /* yacc.c:1646  */
+#line 495 "Aql/grammar.y" /* yacc.c:1661  */
     {
       parser->ast()->scopes()->start(arangodb::aql::AQL_SCOPE_FOR);
       auto node = parser->ast()->createNodeTraversal((yyvsp[-9].strval).value, (yyvsp[-9].strval).length, (yyvsp[-7].strval).value, (yyvsp[-7].strval).length, (yyvsp[-5].strval).value, (yyvsp[-5].strval).length, (yyvsp[-3].node), (yyvsp[-2].node), (yyvsp[-1].node), (yyvsp[0].node));
       parser->ast()->addOperation(node);
     }
-#line 2371 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2371 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 37:
-#line 503 "Aql/grammar.y" /* yacc.c:1646  */
+#line 503 "Aql/grammar.y" /* yacc.c:1661  */
     {
       if (!TRI_CaseEqualString((yyvsp[-3].strval).value, "TO")) {
         parser->registerParseError(TRI_ERROR_QUERY_PARSE, "unexpected qualifier '%s', expecting 'TO'", (yyvsp[-3].strval).value, yylloc.first_line, yylloc.first_column);
@@ -2380,11 +2380,11 @@ yyreduce:
       auto node = parser->ast()->createNodeShortestPath((yyvsp[-8].strval).value, (yyvsp[-8].strval).length, (yyvsp[-6].intval), (yyvsp[-4].node), (yyvsp[-2].node), (yyvsp[-1].node), (yyvsp[0].node));
       parser->ast()->addOperation(node);
     }
-#line 2384 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2384 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 38:
-#line 511 "Aql/grammar.y" /* yacc.c:1646  */
+#line 511 "Aql/grammar.y" /* yacc.c:1661  */
     {
       if (!TRI_CaseEqualString((yyvsp[-3].strval).value, "TO")) {
         parser->registerParseError(TRI_ERROR_QUERY_PARSE, "unexpected qualifier '%s', expecting 'TO'", (yyvsp[-3].strval).value, yylloc.first_line, yylloc.first_column);
@@ -2393,51 +2393,51 @@ yyreduce:
       auto node = parser->ast()->createNodeShortestPath((yyvsp[-10].strval).value, (yyvsp[-10].strval).length, (yyvsp[-8].strval).value, (yyvsp[-8].strval).length, (yyvsp[-6].intval), (yyvsp[-4].node), (yyvsp[-2].node), (yyvsp[-1].node), (yyvsp[0].node));
       parser->ast()->addOperation(node);
     }
-#line 2397 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2397 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 39:
-#line 522 "Aql/grammar.y" /* yacc.c:1646  */
+#line 522 "Aql/grammar.y" /* yacc.c:1661  */
     {
       // operand is a reference. can use it directly
       auto node = parser->ast()->createNodeFilter((yyvsp[0].node));
       parser->ast()->addOperation(node);
     }
-#line 2407 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2407 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 40:
-#line 530 "Aql/grammar.y" /* yacc.c:1646  */
+#line 530 "Aql/grammar.y" /* yacc.c:1661  */
     {
     }
-#line 2414 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2414 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 41:
-#line 535 "Aql/grammar.y" /* yacc.c:1646  */
+#line 535 "Aql/grammar.y" /* yacc.c:1661  */
     {
     }
-#line 2421 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2421 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 42:
-#line 537 "Aql/grammar.y" /* yacc.c:1646  */
+#line 537 "Aql/grammar.y" /* yacc.c:1661  */
     {
     }
-#line 2428 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2428 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 43:
-#line 542 "Aql/grammar.y" /* yacc.c:1646  */
+#line 542 "Aql/grammar.y" /* yacc.c:1661  */
     {
       auto node = parser->ast()->createNodeLet((yyvsp[-2].strval).value, (yyvsp[-2].strval).length, (yyvsp[0].node), true);
       parser->ast()->addOperation(node);
     }
-#line 2437 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2437 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 44:
-#line 549 "Aql/grammar.y" /* yacc.c:1646  */
+#line 549 "Aql/grammar.y" /* yacc.c:1661  */
     {
       if (! TRI_CaseEqualString((yyvsp[-2].strval).value, "COUNT")) {
         parser->registerParseError(TRI_ERROR_QUERY_PARSE, "unexpected qualifier '%s', expecting 'COUNT'", (yyvsp[-2].strval).value, yylloc.first_line, yylloc.first_column);
@@ -2445,20 +2445,20 @@ yyreduce:
 
       (yyval.strval) = (yyvsp[0].strval);
     }
-#line 2449 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2449 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 45:
-#line 559 "Aql/grammar.y" /* yacc.c:1646  */
+#line 559 "Aql/grammar.y" /* yacc.c:1661  */
     {
       auto node = parser->ast()->createNodeArray();
       parser->pushStack(node);
     }
-#line 2458 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2458 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 46:
-#line 562 "Aql/grammar.y" /* yacc.c:1646  */
+#line 562 "Aql/grammar.y" /* yacc.c:1661  */
     { 
       auto list = static_cast<AstNode*>(parser->popStack());
 
@@ -2467,11 +2467,11 @@ yyreduce:
       }
       (yyval.node) = list;
     }
-#line 2471 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2471 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 47:
-#line 573 "Aql/grammar.y" /* yacc.c:1646  */
+#line 573 "Aql/grammar.y" /* yacc.c:1661  */
     {
       /* COLLECT WITH COUNT INTO var OPTIONS ... */
       auto scopes = parser->ast()->scopes();
@@ -2481,11 +2481,11 @@ yyreduce:
       auto node = parser->ast()->createNodeCollectCount(parser->ast()->createNodeArray(), (yyvsp[-1].strval).value, (yyvsp[-1].strval).length, (yyvsp[0].node));
       parser->ast()->addOperation(node);
     }
-#line 2485 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2485 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 48:
-#line 582 "Aql/grammar.y" /* yacc.c:1646  */
+#line 582 "Aql/grammar.y" /* yacc.c:1661  */
     {
       /* COLLECT var = expr WITH COUNT INTO var OPTIONS ... */
       auto scopes = parser->ast()->scopes();
@@ -2497,11 +2497,11 @@ yyreduce:
       auto node = parser->ast()->createNodeCollectCount((yyvsp[-2].node), (yyvsp[-1].strval).value, (yyvsp[-1].strval).length, (yyvsp[0].node));
       parser->ast()->addOperation(node);
     }
-#line 2501 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2501 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 49:
-#line 593 "Aql/grammar.y" /* yacc.c:1646  */
+#line 593 "Aql/grammar.y" /* yacc.c:1661  */
     {
       /* AGGREGATE var = expr OPTIONS ... */
       auto scopes = parser->ast()->scopes();
@@ -2532,11 +2532,11 @@ yyreduce:
       auto node = parser->ast()->createNodeCollect(parser->ast()->createNodeArray(), (yyvsp[-2].node), into, intoExpression, nullptr, (yyvsp[-1].node));
       parser->ast()->addOperation(node);
     }
-#line 2536 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2536 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 50:
-#line 623 "Aql/grammar.y" /* yacc.c:1646  */
+#line 623 "Aql/grammar.y" /* yacc.c:1661  */
     {
       /* COLLECT var = expr AGGREGATE var = expr OPTIONS ... */
       auto scopes = parser->ast()->scopes();
@@ -2604,11 +2604,11 @@ yyreduce:
       auto node = parser->ast()->createNodeCollect((yyvsp[-3].node), (yyvsp[-2].node), into, intoExpression, nullptr, (yyvsp[0].node));
       parser->ast()->addOperation(node);
     }
-#line 2608 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2608 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 51:
-#line 690 "Aql/grammar.y" /* yacc.c:1646  */
+#line 690 "Aql/grammar.y" /* yacc.c:1661  */
     {
       /* COLLECT var = expr INTO var OPTIONS ... */
       auto scopes = parser->ast()->scopes();
@@ -2634,11 +2634,11 @@ yyreduce:
       auto node = parser->ast()->createNodeCollect((yyvsp[-2].node), parser->ast()->createNodeArray(), into, intoExpression, nullptr, (yyvsp[0].node));
       parser->ast()->addOperation(node);
     }
-#line 2638 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2638 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 52:
-#line 715 "Aql/grammar.y" /* yacc.c:1646  */
+#line 715 "Aql/grammar.y" /* yacc.c:1661  */
     {
       /* COLLECT var = expr INTO var KEEP ... OPTIONS ... */
       auto scopes = parser->ast()->scopes();
@@ -2669,61 +2669,61 @@ yyreduce:
       auto node = parser->ast()->createNodeCollect((yyvsp[-3].node), parser->ast()->createNodeArray(), into, intoExpression, (yyvsp[-1].node), (yyvsp[0].node));
       parser->ast()->addOperation(node);
     }
-#line 2673 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2673 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 53:
-#line 748 "Aql/grammar.y" /* yacc.c:1646  */
+#line 748 "Aql/grammar.y" /* yacc.c:1661  */
     {
     }
-#line 2680 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2680 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 54:
-#line 750 "Aql/grammar.y" /* yacc.c:1646  */
+#line 750 "Aql/grammar.y" /* yacc.c:1661  */
     {
     }
-#line 2687 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2687 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 55:
-#line 755 "Aql/grammar.y" /* yacc.c:1646  */
+#line 755 "Aql/grammar.y" /* yacc.c:1661  */
     {
       auto node = parser->ast()->createNodeAssign((yyvsp[-2].strval).value, (yyvsp[-2].strval).length, (yyvsp[0].node));
       parser->pushArrayElement(node);
     }
-#line 2696 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2696 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 56:
-#line 762 "Aql/grammar.y" /* yacc.c:1646  */
+#line 762 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = nullptr;
     }
-#line 2704 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2704 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 57:
-#line 765 "Aql/grammar.y" /* yacc.c:1646  */
+#line 765 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeValueString((yyvsp[0].strval).value, (yyvsp[0].strval).length);
     }
-#line 2712 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2712 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 58:
-#line 768 "Aql/grammar.y" /* yacc.c:1646  */
+#line 768 "Aql/grammar.y" /* yacc.c:1661  */
     {
       auto node = parser->ast()->createNodeArray();
       node->addMember(parser->ast()->createNodeValueString((yyvsp[-2].strval).value, (yyvsp[-2].strval).length));
       node->addMember((yyvsp[0].node));
       (yyval.node) = node;
     }
-#line 2723 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2723 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 59:
-#line 777 "Aql/grammar.y" /* yacc.c:1646  */
+#line 777 "Aql/grammar.y" /* yacc.c:1661  */
     {
       if (! parser->ast()->scopes()->existsVariable((yyvsp[0].strval).value, (yyvsp[0].strval).length)) {
         parser->registerParseError(TRI_ERROR_QUERY_PARSE, "use of unknown variable '%s' for KEEP", (yyvsp[0].strval).value, yylloc.first_line, yylloc.first_column);
@@ -2738,11 +2738,11 @@ yyreduce:
       node->setFlag(FLAG_KEEP_VARIABLENAME);
       parser->pushArrayElement(node);
     }
-#line 2742 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2742 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 60:
-#line 791 "Aql/grammar.y" /* yacc.c:1646  */
+#line 791 "Aql/grammar.y" /* yacc.c:1661  */
     {
       if (! parser->ast()->scopes()->existsVariable((yyvsp[0].strval).value, (yyvsp[0].strval).length)) {
         parser->registerParseError(TRI_ERROR_QUERY_PARSE, "use of unknown variable '%s' for KEEP", (yyvsp[0].strval).value, yylloc.first_line, yylloc.first_column);
@@ -2757,11 +2757,11 @@ yyreduce:
       node->setFlag(FLAG_KEEP_VARIABLENAME);
       parser->pushArrayElement(node);
     }
-#line 2761 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2761 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 61:
-#line 808 "Aql/grammar.y" /* yacc.c:1646  */
+#line 808 "Aql/grammar.y" /* yacc.c:1661  */
     {
       if (! TRI_CaseEqualString((yyvsp[0].strval).value, "KEEP")) {
         parser->registerParseError(TRI_ERROR_QUERY_PARSE, "unexpected qualifier '%s', expecting 'KEEP'", (yyvsp[0].strval).value, yylloc.first_line, yylloc.first_column);
@@ -2770,158 +2770,158 @@ yyreduce:
       auto node = parser->ast()->createNodeArray();
       parser->pushStack(node);
     }
-#line 2774 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2774 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 62:
-#line 815 "Aql/grammar.y" /* yacc.c:1646  */
+#line 815 "Aql/grammar.y" /* yacc.c:1661  */
     {
       auto list = static_cast<AstNode*>(parser->popStack());
       (yyval.node) = list;
     }
-#line 2783 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2783 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 63:
-#line 822 "Aql/grammar.y" /* yacc.c:1646  */
+#line 822 "Aql/grammar.y" /* yacc.c:1661  */
     {
       auto node = parser->ast()->createNodeArray();
       parser->pushStack(node);
     }
-#line 2792 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2792 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 64:
-#line 825 "Aql/grammar.y" /* yacc.c:1646  */
+#line 825 "Aql/grammar.y" /* yacc.c:1661  */
     {
       auto list = static_cast<AstNode*>(parser->popStack());
       (yyval.node) = list;
     }
-#line 2801 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2801 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 65:
-#line 832 "Aql/grammar.y" /* yacc.c:1646  */
+#line 832 "Aql/grammar.y" /* yacc.c:1661  */
     {
       auto node = parser->ast()->createNodeArray();
       parser->pushStack(node);
     }
-#line 2810 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2810 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 66:
-#line 835 "Aql/grammar.y" /* yacc.c:1646  */
+#line 835 "Aql/grammar.y" /* yacc.c:1661  */
     {
       auto list = static_cast<AstNode const*>(parser->popStack());
       auto node = parser->ast()->createNodeSort(list);
       parser->ast()->addOperation(node);
     }
-#line 2820 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2820 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 67:
-#line 843 "Aql/grammar.y" /* yacc.c:1646  */
+#line 843 "Aql/grammar.y" /* yacc.c:1661  */
     {
       parser->pushArrayElement((yyvsp[0].node));
     }
-#line 2828 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2828 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 68:
-#line 846 "Aql/grammar.y" /* yacc.c:1646  */
+#line 846 "Aql/grammar.y" /* yacc.c:1661  */
     {
       parser->pushArrayElement((yyvsp[0].node));
     }
-#line 2836 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2836 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 69:
-#line 852 "Aql/grammar.y" /* yacc.c:1646  */
+#line 852 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeSortElement((yyvsp[-1].node), (yyvsp[0].node));
     }
-#line 2844 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2844 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 70:
-#line 858 "Aql/grammar.y" /* yacc.c:1646  */
+#line 858 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeValueBool(true);
     }
-#line 2852 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2852 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 71:
-#line 861 "Aql/grammar.y" /* yacc.c:1646  */
+#line 861 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeValueBool(true);
     }
-#line 2860 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2860 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 72:
-#line 864 "Aql/grammar.y" /* yacc.c:1646  */
+#line 864 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeValueBool(false);
     }
-#line 2868 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2868 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 73:
-#line 867 "Aql/grammar.y" /* yacc.c:1646  */
+#line 867 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = (yyvsp[0].node);
     }
-#line 2876 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2876 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 74:
-#line 873 "Aql/grammar.y" /* yacc.c:1646  */
+#line 873 "Aql/grammar.y" /* yacc.c:1661  */
     {
       auto offset = parser->ast()->createNodeValueInt(0);
       auto node = parser->ast()->createNodeLimit(offset, (yyvsp[0].node));
       parser->ast()->addOperation(node);
     }
-#line 2886 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2886 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 75:
-#line 878 "Aql/grammar.y" /* yacc.c:1646  */
+#line 878 "Aql/grammar.y" /* yacc.c:1661  */
     {
       auto node = parser->ast()->createNodeLimit((yyvsp[-2].node), (yyvsp[0].node));
       parser->ast()->addOperation(node);
     }
-#line 2895 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2895 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 76:
-#line 885 "Aql/grammar.y" /* yacc.c:1646  */
+#line 885 "Aql/grammar.y" /* yacc.c:1661  */
     {
       auto node = parser->ast()->createNodeReturn((yyvsp[0].node));
       parser->ast()->addOperation(node);
       parser->ast()->scopes()->endNested();
     }
-#line 2905 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2905 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 77:
-#line 893 "Aql/grammar.y" /* yacc.c:1646  */
+#line 893 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = (yyvsp[0].node);
     }
-#line 2913 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2913 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 78:
-#line 896 "Aql/grammar.y" /* yacc.c:1646  */
+#line 896 "Aql/grammar.y" /* yacc.c:1661  */
     {
        (yyval.node) = (yyvsp[0].node);
      }
-#line 2921 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2921 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 79:
-#line 902 "Aql/grammar.y" /* yacc.c:1646  */
+#line 902 "Aql/grammar.y" /* yacc.c:1661  */
     {
       if (! parser->configureWriteQuery((yyvsp[-1].node), (yyvsp[0].node))) {
         YYABORT;
@@ -2929,11 +2929,11 @@ yyreduce:
       auto node = parser->ast()->createNodeRemove((yyvsp[-2].node), (yyvsp[-1].node), (yyvsp[0].node));
       parser->ast()->addOperation(node);
     }
-#line 2933 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2933 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 80:
-#line 912 "Aql/grammar.y" /* yacc.c:1646  */
+#line 912 "Aql/grammar.y" /* yacc.c:1661  */
     {
       if (! parser->configureWriteQuery((yyvsp[-1].node), (yyvsp[0].node))) {
         YYABORT;
@@ -2941,11 +2941,11 @@ yyreduce:
       auto node = parser->ast()->createNodeInsert((yyvsp[-2].node), (yyvsp[-1].node), (yyvsp[0].node));
       parser->ast()->addOperation(node);
     }
-#line 2945 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2945 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 81:
-#line 922 "Aql/grammar.y" /* yacc.c:1646  */
+#line 922 "Aql/grammar.y" /* yacc.c:1661  */
     {
       if (! parser->configureWriteQuery((yyvsp[-1].node), (yyvsp[0].node))) {
         YYABORT;
@@ -2954,11 +2954,11 @@ yyreduce:
       AstNode* node = parser->ast()->createNodeUpdate(nullptr, (yyvsp[-2].node), (yyvsp[-1].node), (yyvsp[0].node));
       parser->ast()->addOperation(node);
     }
-#line 2958 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2958 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 82:
-#line 930 "Aql/grammar.y" /* yacc.c:1646  */
+#line 930 "Aql/grammar.y" /* yacc.c:1661  */
     {
       if (! parser->configureWriteQuery((yyvsp[-1].node), (yyvsp[0].node))) {
         YYABORT;
@@ -2967,18 +2967,18 @@ yyreduce:
       AstNode* node = parser->ast()->createNodeUpdate((yyvsp[-4].node), (yyvsp[-2].node), (yyvsp[-1].node), (yyvsp[0].node));
       parser->ast()->addOperation(node);
     }
-#line 2971 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2971 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 83:
-#line 941 "Aql/grammar.y" /* yacc.c:1646  */
+#line 941 "Aql/grammar.y" /* yacc.c:1661  */
     {
     }
-#line 2978 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2978 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 84:
-#line 946 "Aql/grammar.y" /* yacc.c:1646  */
+#line 946 "Aql/grammar.y" /* yacc.c:1661  */
     {
       if (! parser->configureWriteQuery((yyvsp[-1].node), (yyvsp[0].node))) {
         YYABORT;
@@ -2987,11 +2987,11 @@ yyreduce:
       AstNode* node = parser->ast()->createNodeReplace(nullptr, (yyvsp[-2].node), (yyvsp[-1].node), (yyvsp[0].node));
       parser->ast()->addOperation(node);
     }
-#line 2991 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 2991 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 85:
-#line 954 "Aql/grammar.y" /* yacc.c:1646  */
+#line 954 "Aql/grammar.y" /* yacc.c:1661  */
     {
       if (! parser->configureWriteQuery((yyvsp[-1].node), (yyvsp[0].node))) {
         YYABORT;
@@ -3000,44 +3000,44 @@ yyreduce:
       AstNode* node = parser->ast()->createNodeReplace((yyvsp[-4].node), (yyvsp[-2].node), (yyvsp[-1].node), (yyvsp[0].node));
       parser->ast()->addOperation(node);
     }
-#line 3004 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3004 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 86:
-#line 965 "Aql/grammar.y" /* yacc.c:1646  */
+#line 965 "Aql/grammar.y" /* yacc.c:1661  */
     {
     }
-#line 3011 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3011 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 87:
-#line 970 "Aql/grammar.y" /* yacc.c:1646  */
+#line 970 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.intval) = static_cast<int64_t>(NODE_TYPE_UPDATE);
     }
-#line 3019 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3019 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 88:
-#line 973 "Aql/grammar.y" /* yacc.c:1646  */
+#line 973 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.intval) = static_cast<int64_t>(NODE_TYPE_REPLACE);
     }
-#line 3027 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3027 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 89:
-#line 979 "Aql/grammar.y" /* yacc.c:1646  */
+#line 979 "Aql/grammar.y" /* yacc.c:1661  */
     { 
       // reserve a variable named "$OLD", we might need it in the update expression
       // and in a later return thing
       parser->pushStack(parser->ast()->createNodeVariable(TRI_CHAR_LENGTH_PAIR(Variable::NAME_OLD), true));
     }
-#line 3037 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3037 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 90:
-#line 983 "Aql/grammar.y" /* yacc.c:1646  */
+#line 983 "Aql/grammar.y" /* yacc.c:1661  */
     {
       if (! parser->configureWriteQuery((yyvsp[-1].node), (yyvsp[0].node))) {
         YYABORT;
@@ -3082,35 +3082,35 @@ yyreduce:
       auto node = parser->ast()->createNodeUpsert(static_cast<AstNodeType>((yyvsp[-3].intval)), parser->ast()->createNodeReference(TRI_CHAR_LENGTH_PAIR(Variable::NAME_OLD)), (yyvsp[-4].node), (yyvsp[-2].node), (yyvsp[-1].node), (yyvsp[0].node));
       parser->ast()->addOperation(node);
     }
-#line 3086 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3086 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 91:
-#line 1030 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1030 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeQuantifier(Quantifier::ALL);
     }
-#line 3094 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3094 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 92:
-#line 1033 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1033 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeQuantifier(Quantifier::ANY);
     }
-#line 3102 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3102 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 93:
-#line 1036 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1036 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeQuantifier(Quantifier::NONE);
     }
-#line 3110 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3110 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 94:
-#line 1042 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1042 "Aql/grammar.y" /* yacc.c:1661  */
     {
       auto const scopeType = parser->ast()->scopes()->type();
 
@@ -3119,83 +3119,83 @@ yyreduce:
         parser->registerParseError(TRI_ERROR_QUERY_PARSE, "cannot use DISTINCT modifier on top-level query element", yylloc.first_line, yylloc.first_column);
       }
     }
-#line 3123 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3123 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 95:
-#line 1049 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1049 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeDistinct((yyvsp[0].node));
     }
-#line 3131 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3131 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 96:
-#line 1052 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1052 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = (yyvsp[0].node);
     }
-#line 3139 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3139 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 97:
-#line 1058 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1058 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = (yyvsp[0].node);
     }
-#line 3147 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3147 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 98:
-#line 1061 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1061 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = (yyvsp[0].node);
     }
-#line 3155 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3155 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 99:
-#line 1064 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1064 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = (yyvsp[0].node);
     }
-#line 3163 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3163 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 100:
-#line 1067 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1067 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = (yyvsp[0].node);
     }
-#line 3171 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3171 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 101:
-#line 1070 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1070 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = (yyvsp[0].node);
     }
-#line 3179 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3179 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 102:
-#line 1073 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1073 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeRange((yyvsp[-2].node), (yyvsp[0].node));
     }
-#line 3187 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3187 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 103:
-#line 1079 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1079 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.strval) = (yyvsp[0].strval);
     }
-#line 3195 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3195 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 104:
-#line 1082 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1082 "Aql/grammar.y" /* yacc.c:1661  */
     {
       std::string temp((yyvsp[-2].strval).value, (yyvsp[-2].strval).length);
       temp.append("::");
@@ -3209,215 +3209,215 @@ yyreduce:
       (yyval.strval).value = p;
       (yyval.strval).length = temp.size();
     }
-#line 3213 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3213 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 105:
-#line 1098 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1098 "Aql/grammar.y" /* yacc.c:1661  */
     {
       parser->pushStack((yyvsp[-1].strval).value);
 
       auto node = parser->ast()->createNodeArray();
       parser->pushStack(node);
     }
-#line 3224 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3224 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 106:
-#line 1103 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1103 "Aql/grammar.y" /* yacc.c:1661  */
     {
       auto list = static_cast<AstNode const*>(parser->popStack());
       (yyval.node) = parser->ast()->createNodeFunctionCall(static_cast<char const*>(parser->popStack()), list);
     }
-#line 3233 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3233 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 107:
-#line 1107 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1107 "Aql/grammar.y" /* yacc.c:1661  */
     {
       auto node = parser->ast()->createNodeArray();
       parser->pushStack(node);
     }
-#line 3242 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3242 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 108:
-#line 1110 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1110 "Aql/grammar.y" /* yacc.c:1661  */
     {
       auto list = static_cast<AstNode const*>(parser->popStack());
       (yyval.node) = parser->ast()->createNodeFunctionCall("LIKE", list);
     }
-#line 3251 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3251 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 109:
-#line 1117 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1117 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeUnaryOperator(NODE_TYPE_OPERATOR_UNARY_PLUS, (yyvsp[0].node));
     }
-#line 3259 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3259 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 110:
-#line 1120 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1120 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeUnaryOperator(NODE_TYPE_OPERATOR_UNARY_MINUS, (yyvsp[0].node));
     }
-#line 3267 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3267 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 111:
-#line 1123 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1123 "Aql/grammar.y" /* yacc.c:1661  */
     { 
       (yyval.node) = parser->ast()->createNodeUnaryOperator(NODE_TYPE_OPERATOR_UNARY_NOT, (yyvsp[0].node));
     }
-#line 3275 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3275 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 112:
-#line 1129 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1129 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeBinaryOperator(NODE_TYPE_OPERATOR_BINARY_OR, (yyvsp[-2].node), (yyvsp[0].node));
     }
-#line 3283 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3283 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 113:
-#line 1132 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1132 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeBinaryOperator(NODE_TYPE_OPERATOR_BINARY_AND, (yyvsp[-2].node), (yyvsp[0].node));
     }
-#line 3291 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3291 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 114:
-#line 1135 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1135 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeBinaryOperator(NODE_TYPE_OPERATOR_BINARY_PLUS, (yyvsp[-2].node), (yyvsp[0].node));
     }
-#line 3299 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3299 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 115:
-#line 1138 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1138 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeBinaryOperator(NODE_TYPE_OPERATOR_BINARY_MINUS, (yyvsp[-2].node), (yyvsp[0].node));
     }
-#line 3307 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3307 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 116:
-#line 1141 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1141 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeBinaryOperator(NODE_TYPE_OPERATOR_BINARY_TIMES, (yyvsp[-2].node), (yyvsp[0].node));
     }
-#line 3315 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3315 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 117:
-#line 1144 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1144 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeBinaryOperator(NODE_TYPE_OPERATOR_BINARY_DIV, (yyvsp[-2].node), (yyvsp[0].node));
     }
-#line 3323 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3323 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 118:
-#line 1147 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1147 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeBinaryOperator(NODE_TYPE_OPERATOR_BINARY_MOD, (yyvsp[-2].node), (yyvsp[0].node));
     }
-#line 3331 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3331 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 119:
-#line 1150 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1150 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeBinaryOperator(NODE_TYPE_OPERATOR_BINARY_EQ, (yyvsp[-2].node), (yyvsp[0].node));
     }
-#line 3339 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3339 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 120:
-#line 1153 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1153 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeBinaryOperator(NODE_TYPE_OPERATOR_BINARY_NE, (yyvsp[-2].node), (yyvsp[0].node));
     }
-#line 3347 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3347 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 121:
-#line 1156 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1156 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeBinaryOperator(NODE_TYPE_OPERATOR_BINARY_LT, (yyvsp[-2].node), (yyvsp[0].node));
     }
-#line 3355 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3355 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 122:
-#line 1159 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1159 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeBinaryOperator(NODE_TYPE_OPERATOR_BINARY_GT, (yyvsp[-2].node), (yyvsp[0].node));
     }
-#line 3363 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3363 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 123:
-#line 1162 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1162 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeBinaryOperator(NODE_TYPE_OPERATOR_BINARY_LE, (yyvsp[-2].node), (yyvsp[0].node));
     }
-#line 3371 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3371 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 124:
-#line 1165 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1165 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeBinaryOperator(NODE_TYPE_OPERATOR_BINARY_GE, (yyvsp[-2].node), (yyvsp[0].node));
     }
-#line 3379 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3379 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 125:
-#line 1168 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1168 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeBinaryOperator(NODE_TYPE_OPERATOR_BINARY_IN, (yyvsp[-2].node), (yyvsp[0].node));
     }
-#line 3387 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3387 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 126:
-#line 1171 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1171 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeBinaryOperator(NODE_TYPE_OPERATOR_BINARY_NIN, (yyvsp[-2].node), (yyvsp[0].node));
     }
-#line 3395 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3395 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 127:
-#line 1174 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1174 "Aql/grammar.y" /* yacc.c:1661  */
     {
       AstNode* arguments = parser->ast()->createNodeArray(2);
       arguments->addMember((yyvsp[-2].node));
       arguments->addMember((yyvsp[0].node));
       (yyval.node) = parser->ast()->createNodeFunctionCall("LIKE", arguments);
     }
-#line 3406 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3406 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 128:
-#line 1180 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1180 "Aql/grammar.y" /* yacc.c:1661  */
     {
       AstNode* arguments = parser->ast()->createNodeArray(2);
       arguments->addMember((yyvsp[-2].node));
       arguments->addMember((yyvsp[0].node));
       (yyval.node) = parser->ast()->createNodeFunctionCall("REGEX_TEST", arguments);
     }
-#line 3417 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3417 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 129:
-#line 1186 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1186 "Aql/grammar.y" /* yacc.c:1661  */
     {
       AstNode* arguments = parser->ast()->createNodeArray(2);
       arguments->addMember((yyvsp[-2].node));
@@ -3425,114 +3425,114 @@ yyreduce:
       AstNode* node = parser->ast()->createNodeFunctionCall("REGEX_TEST", arguments);
       (yyval.node) = parser->ast()->createNodeUnaryOperator(NODE_TYPE_OPERATOR_UNARY_NOT, node);
     }
-#line 3429 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3429 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 130:
-#line 1193 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1193 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeBinaryArrayOperator(NODE_TYPE_OPERATOR_BINARY_ARRAY_EQ, (yyvsp[-3].node), (yyvsp[0].node), (yyvsp[-2].node));
     }
-#line 3437 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3437 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 131:
-#line 1196 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1196 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeBinaryArrayOperator(NODE_TYPE_OPERATOR_BINARY_ARRAY_NE, (yyvsp[-3].node), (yyvsp[0].node), (yyvsp[-2].node));
     }
-#line 3445 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3445 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 132:
-#line 1199 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1199 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeBinaryArrayOperator(NODE_TYPE_OPERATOR_BINARY_ARRAY_LT, (yyvsp[-3].node), (yyvsp[0].node), (yyvsp[-2].node));
     }
-#line 3453 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3453 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 133:
-#line 1202 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1202 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeBinaryArrayOperator(NODE_TYPE_OPERATOR_BINARY_ARRAY_GT, (yyvsp[-3].node), (yyvsp[0].node), (yyvsp[-2].node));
     }
-#line 3461 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3461 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 134:
-#line 1205 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1205 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeBinaryArrayOperator(NODE_TYPE_OPERATOR_BINARY_ARRAY_LE, (yyvsp[-3].node), (yyvsp[0].node), (yyvsp[-2].node));
     }
-#line 3469 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3469 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 135:
-#line 1208 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1208 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeBinaryArrayOperator(NODE_TYPE_OPERATOR_BINARY_ARRAY_GE, (yyvsp[-3].node), (yyvsp[0].node), (yyvsp[-2].node));
     }
-#line 3477 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3477 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 136:
-#line 1211 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1211 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeBinaryArrayOperator(NODE_TYPE_OPERATOR_BINARY_ARRAY_IN, (yyvsp[-3].node), (yyvsp[0].node), (yyvsp[-2].node));
     }
-#line 3485 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3485 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 137:
-#line 1214 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1214 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeBinaryArrayOperator(NODE_TYPE_OPERATOR_BINARY_ARRAY_NIN, (yyvsp[-3].node), (yyvsp[0].node), (yyvsp[-2].node));
     }
-#line 3493 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3493 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 138:
-#line 1220 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1220 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeTernaryOperator((yyvsp[-4].node), (yyvsp[-2].node), (yyvsp[0].node));
     }
-#line 3501 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3501 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 139:
-#line 1226 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1226 "Aql/grammar.y" /* yacc.c:1661  */
     {
     }
-#line 3508 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3508 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 140:
-#line 1228 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1228 "Aql/grammar.y" /* yacc.c:1661  */
     {
     }
-#line 3515 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3515 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 141:
-#line 1233 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1233 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = (yyvsp[0].node);
     }
-#line 3523 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3523 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 142:
-#line 1236 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1236 "Aql/grammar.y" /* yacc.c:1661  */
     {
       parser->ast()->scopes()->start(arangodb::aql::AQL_SCOPE_SUBQUERY);
       parser->ast()->startSubQuery();
     }
-#line 3532 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3532 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 143:
-#line 1239 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1239 "Aql/grammar.y" /* yacc.c:1661  */
     {
       AstNode* node = parser->ast()->endSubQuery();
       parser->ast()->scopes()->endCurrent();
@@ -3543,98 +3543,98 @@ yyreduce:
 
       (yyval.node) = parser->ast()->createNodeReference(variableName);
     }
-#line 3547 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3547 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 144:
-#line 1252 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1252 "Aql/grammar.y" /* yacc.c:1661  */
     {
       parser->pushArrayElement((yyvsp[0].node));
     }
-#line 3555 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3555 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 145:
-#line 1255 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1255 "Aql/grammar.y" /* yacc.c:1661  */
     {
       parser->pushArrayElement((yyvsp[0].node));
     }
-#line 3563 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3563 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 146:
-#line 1261 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1261 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = (yyvsp[0].node);
     }
-#line 3571 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3571 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 147:
-#line 1264 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1264 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = (yyvsp[0].node);
     }
-#line 3579 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3579 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 148:
-#line 1270 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1270 "Aql/grammar.y" /* yacc.c:1661  */
     {
       auto node = parser->ast()->createNodeArray();
       parser->pushStack(node);
     }
-#line 3588 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3588 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 149:
-#line 1273 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1273 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = static_cast<AstNode*>(parser->popStack());
     }
-#line 3596 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3596 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 150:
-#line 1279 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1279 "Aql/grammar.y" /* yacc.c:1661  */
     {
     }
-#line 3603 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3603 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 151:
-#line 1281 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1281 "Aql/grammar.y" /* yacc.c:1661  */
     {
     }
-#line 3610 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3610 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 152:
-#line 1286 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1286 "Aql/grammar.y" /* yacc.c:1661  */
     {
       parser->pushArrayElement((yyvsp[0].node));
     }
-#line 3618 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3618 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 153:
-#line 1289 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1289 "Aql/grammar.y" /* yacc.c:1661  */
     {
       parser->pushArrayElement((yyvsp[0].node));
     }
-#line 3626 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3626 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 154:
-#line 1295 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1295 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = nullptr;
     }
-#line 3634 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3634 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 155:
-#line 1298 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1298 "Aql/grammar.y" /* yacc.c:1661  */
     {
       if ((yyvsp[0].node) == nullptr) {
         ABORT_OOM
@@ -3646,56 +3646,56 @@ yyreduce:
 
       (yyval.node) = (yyvsp[0].node);
     }
-#line 3650 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3650 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 156:
-#line 1312 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1312 "Aql/grammar.y" /* yacc.c:1661  */
     {
       auto node = parser->ast()->createNodeObject();
       parser->pushStack(node);
     }
-#line 3659 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3659 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 157:
-#line 1315 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1315 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = static_cast<AstNode*>(parser->popStack());
     }
-#line 3667 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3667 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 158:
-#line 1321 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1321 "Aql/grammar.y" /* yacc.c:1661  */
     {
     }
-#line 3674 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3674 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 159:
-#line 1323 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1323 "Aql/grammar.y" /* yacc.c:1661  */
     {
     }
-#line 3681 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3681 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 160:
-#line 1328 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1328 "Aql/grammar.y" /* yacc.c:1661  */
     {
     }
-#line 3688 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3688 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 161:
-#line 1330 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1330 "Aql/grammar.y" /* yacc.c:1661  */
     {
     }
-#line 3695 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3695 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 162:
-#line 1335 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1335 "Aql/grammar.y" /* yacc.c:1661  */
     {
       // attribute-name-only (comparable to JS enhanced object literals, e.g. { foo, bar })
       auto ast = parser->ast();
@@ -3710,20 +3710,20 @@ yyreduce:
       auto node = ast->createNodeReference(variable);
       parser->pushObjectElement((yyvsp[0].strval).value, (yyvsp[0].strval).length, node);
     }
-#line 3714 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3714 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 163:
-#line 1349 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1349 "Aql/grammar.y" /* yacc.c:1661  */
     {
       // attribute-name : attribute-value
       parser->pushObjectElement((yyvsp[-2].strval).value, (yyvsp[-2].strval).length, (yyvsp[0].node));
     }
-#line 3723 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3723 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 164:
-#line 1353 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1353 "Aql/grammar.y" /* yacc.c:1661  */
     {
       // bind-parameter : attribute-value
       if ((yyvsp[-2].strval).length < 1 || (yyvsp[-2].strval).value[0] == '@') {
@@ -3733,100 +3733,100 @@ yyreduce:
       auto param = parser->ast()->createNodeParameter((yyvsp[-2].strval).value, (yyvsp[-2].strval).length);
       parser->pushObjectElement(param, (yyvsp[0].node));
     }
-#line 3737 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3737 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 165:
-#line 1362 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1362 "Aql/grammar.y" /* yacc.c:1661  */
     {
       // [ attribute-name-expression ] : attribute-value
       parser->pushObjectElement((yyvsp[-3].node), (yyvsp[0].node));
     }
-#line 3746 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3746 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 166:
-#line 1369 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1369 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.intval) = 1;
     }
-#line 3754 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3754 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 167:
-#line 1372 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1372 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.intval) = (yyvsp[-1].intval) + 1;
     }
-#line 3762 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3762 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 168:
-#line 1378 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1378 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = nullptr;
     }
-#line 3770 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3770 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 169:
-#line 1381 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1381 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = (yyvsp[0].node);
     }
-#line 3778 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3778 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 170:
-#line 1387 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1387 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = nullptr;
     }
-#line 3786 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3786 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 171:
-#line 1390 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1390 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeArrayLimit(nullptr, (yyvsp[0].node));
     }
-#line 3794 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3794 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 172:
-#line 1393 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1393 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeArrayLimit((yyvsp[-2].node), (yyvsp[0].node));
     }
-#line 3802 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3802 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 173:
-#line 1399 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1399 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = nullptr;
     }
-#line 3810 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3810 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 174:
-#line 1402 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1402 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = (yyvsp[0].node);
     }
-#line 3818 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3818 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 175:
-#line 1408 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1408 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeValueString((yyvsp[0].strval).value, (yyvsp[0].strval).length);
     }
-#line 3826 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3826 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 176:
-#line 1411 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1411 "Aql/grammar.y" /* yacc.c:1661  */
     {
       char const* p = (yyvsp[0].node)->getStringValue();
       size_t const len = (yyvsp[0].node)->getStringLength();
@@ -3835,20 +3835,20 @@ yyreduce:
       }
       (yyval.node) = (yyvsp[0].node);
     }
-#line 3839 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3839 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 177:
-#line 1419 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1419 "Aql/grammar.y" /* yacc.c:1661  */
     {
       auto tmp = parser->ast()->createNodeValueString((yyvsp[0].strval).value, (yyvsp[0].strval).length);
       (yyval.node) = parser->ast()->createNodeCollectionDirection((yyvsp[-1].intval), tmp);
     }
-#line 3848 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3848 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 178:
-#line 1423 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1423 "Aql/grammar.y" /* yacc.c:1661  */
     {
       char const* p = (yyvsp[0].node)->getStringValue();
       size_t const len = (yyvsp[0].node)->getStringLength();
@@ -3857,58 +3857,58 @@ yyreduce:
       }
       (yyval.node) = parser->ast()->createNodeCollectionDirection((yyvsp[-1].intval), (yyvsp[0].node));
     }
-#line 3861 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3861 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 179:
-#line 1434 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1434 "Aql/grammar.y" /* yacc.c:1661  */
     {
        auto node = static_cast<AstNode*>(parser->peekStack());
        node->addMember((yyvsp[0].node));
      }
-#line 3870 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3870 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 180:
-#line 1438 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1438 "Aql/grammar.y" /* yacc.c:1661  */
     {
        auto node = static_cast<AstNode*>(parser->peekStack());
        node->addMember((yyvsp[0].node));
      }
-#line 3879 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3879 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 181:
-#line 1445 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1445 "Aql/grammar.y" /* yacc.c:1661  */
     {
       auto node = parser->ast()->createNodeArray();
       node->addMember((yyvsp[0].node));
       (yyval.node) = parser->ast()->createNodeCollectionList(node);
     }
-#line 3889 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3889 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 182:
-#line 1450 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1450 "Aql/grammar.y" /* yacc.c:1661  */
     { 
       auto node = parser->ast()->createNodeArray();
       parser->pushStack(node);
       node->addMember((yyvsp[-1].node));
     }
-#line 3899 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3899 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 183:
-#line 1454 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1454 "Aql/grammar.y" /* yacc.c:1661  */
     {
       auto node = static_cast<AstNode*>(parser->popStack());
       (yyval.node) = parser->ast()->createNodeCollectionList(node);
     }
-#line 3908 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3908 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 184:
-#line 1458 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1458 "Aql/grammar.y" /* yacc.c:1661  */
     {
       // graph name
       char const* p = (yyvsp[0].node)->getStringValue();
@@ -3918,60 +3918,60 @@ yyreduce:
       }
       (yyval.node) = (yyvsp[0].node);
     }
-#line 3922 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3922 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 185:
-#line 1467 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1467 "Aql/grammar.y" /* yacc.c:1661  */
     {
       // graph name
       (yyval.node) = parser->ast()->createNodeValueString((yyvsp[0].strval).value, (yyvsp[0].strval).length);
     }
-#line 3931 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3931 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 186:
-#line 1476 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1476 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.intval) = 2;
     }
-#line 3939 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3939 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 187:
-#line 1479 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1479 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.intval) = 1;
     }
-#line 3947 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3947 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 188:
-#line 1482 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1482 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.intval) = 0; 
     }
-#line 3955 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3955 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 189:
-#line 1488 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1488 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeDirection((yyvsp[0].intval), 1);
     }
-#line 3963 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3963 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 190:
-#line 1491 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1491 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeDirection((yyvsp[0].intval), (yyvsp[-1].node));
     }
-#line 3971 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 3971 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 191:
-#line 1497 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1497 "Aql/grammar.y" /* yacc.c:1661  */
     {
       // variable or collection
       auto ast = parser->ast();
@@ -4004,27 +4004,27 @@ yyreduce:
 
       (yyval.node) = node;
     }
-#line 4008 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 4008 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 192:
-#line 1529 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1529 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = (yyvsp[0].node);
     }
-#line 4016 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 4016 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 193:
-#line 1532 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1532 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = (yyvsp[0].node);
     }
-#line 4024 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 4024 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 194:
-#line 1535 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1535 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = (yyvsp[0].node);
       
@@ -4032,11 +4032,11 @@ yyreduce:
         ABORT_OOM
       }
     }
-#line 4036 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 4036 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 195:
-#line 1542 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1542 "Aql/grammar.y" /* yacc.c:1661  */
     {
       if ((yyvsp[-1].node)->type == NODE_TYPE_EXPANSION) {
         // create a dummy passthru node that reduces and evaluates the expansion first
@@ -4047,20 +4047,20 @@ yyreduce:
         (yyval.node) = (yyvsp[-1].node);
       }
     }
-#line 4051 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 4051 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 196:
-#line 1552 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1552 "Aql/grammar.y" /* yacc.c:1661  */
     {
       parser->ast()->scopes()->start(arangodb::aql::AQL_SCOPE_SUBQUERY);
       parser->ast()->startSubQuery();
     }
-#line 4060 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 4060 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 197:
-#line 1555 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1555 "Aql/grammar.y" /* yacc.c:1661  */
     {
       AstNode* node = parser->ast()->endSubQuery();
       parser->ast()->scopes()->endCurrent();
@@ -4071,11 +4071,11 @@ yyreduce:
 
       (yyval.node) = parser->ast()->createNodeReference(variableName);
     }
-#line 4075 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 4075 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 198:
-#line 1565 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1565 "Aql/grammar.y" /* yacc.c:1661  */
     {
       // named variable access, e.g. variable.reference
       if ((yyvsp[-2].node)->type == NODE_TYPE_EXPANSION) {
@@ -4091,11 +4091,11 @@ yyreduce:
         (yyval.node) = parser->ast()->createNodeAttributeAccess((yyvsp[-2].node), (yyvsp[0].strval).value, (yyvsp[0].strval).length);
       }
     }
-#line 4095 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 4095 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 199:
-#line 1580 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1580 "Aql/grammar.y" /* yacc.c:1661  */
     {
       // named variable access, e.g. variable.@reference
       if ((yyvsp[-2].node)->type == NODE_TYPE_EXPANSION) {
@@ -4110,11 +4110,11 @@ yyreduce:
         (yyval.node) = parser->ast()->createNodeBoundAttributeAccess((yyvsp[-2].node), (yyvsp[0].node));
       }
     }
-#line 4114 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 4114 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 200:
-#line 1594 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1594 "Aql/grammar.y" /* yacc.c:1661  */
     {
       // indexed variable access, e.g. variable[index]
       if ((yyvsp[-3].node)->type == NODE_TYPE_EXPANSION) {
@@ -4129,11 +4129,11 @@ yyreduce:
         (yyval.node) = parser->ast()->createNodeIndexedAccess((yyvsp[-3].node), (yyvsp[-1].node));
       }
     }
-#line 4133 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 4133 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 201:
-#line 1608 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1608 "Aql/grammar.y" /* yacc.c:1661  */
     {
       // variable expansion, e.g. variable[*], with optional FILTER, LIMIT and RETURN clauses
       if ((yyvsp[0].intval) > 1 && (yyvsp[-2].node)->type == NODE_TYPE_EXPANSION) {
@@ -4157,11 +4157,11 @@ yyreduce:
       auto scopes = parser->ast()->scopes();
       scopes->stackCurrentVariable(scopes->getVariable(nextName));
     }
-#line 4161 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 4161 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 202:
-#line 1630 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1630 "Aql/grammar.y" /* yacc.c:1661  */
     {
       auto scopes = parser->ast()->scopes();
       scopes->unstackCurrentVariable();
@@ -4180,27 +4180,27 @@ yyreduce:
         (yyval.node) = parser->ast()->createNodeExpansion((yyvsp[-5].intval), iterator, parser->ast()->createNodeReference(variable->name), (yyvsp[-3].node), (yyvsp[-2].node), (yyvsp[-1].node));
       }
     }
-#line 4184 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 4184 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 203:
-#line 1651 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1651 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = (yyvsp[0].node);
     }
-#line 4192 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 4192 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 204:
-#line 1654 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1654 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = (yyvsp[0].node);
     }
-#line 4200 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 4200 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 205:
-#line 1660 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1660 "Aql/grammar.y" /* yacc.c:1661  */
     {
       if ((yyvsp[0].node) == nullptr) {
         ABORT_OOM
@@ -4208,11 +4208,11 @@ yyreduce:
       
       (yyval.node) = (yyvsp[0].node);
     }
-#line 4212 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 4212 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 206:
-#line 1667 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1667 "Aql/grammar.y" /* yacc.c:1661  */
     {
       if ((yyvsp[0].node) == nullptr) {
         ABORT_OOM
@@ -4220,67 +4220,67 @@ yyreduce:
 
       (yyval.node) = (yyvsp[0].node);
     }
-#line 4224 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 4224 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 207:
-#line 1677 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1677 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeValueString((yyvsp[0].strval).value, (yyvsp[0].strval).length);
     }
-#line 4232 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 4232 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 208:
-#line 1680 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1680 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = (yyvsp[0].node);
     }
-#line 4240 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 4240 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 209:
-#line 1683 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1683 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeValueNull();
     }
-#line 4248 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 4248 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 210:
-#line 1686 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1686 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeValueBool(true);
     }
-#line 4256 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 4256 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 211:
-#line 1689 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1689 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeValueBool(false);
     }
-#line 4264 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 4264 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 212:
-#line 1695 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1695 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeCollection((yyvsp[0].strval).value, TRI_TRANSACTION_WRITE);
     }
-#line 4272 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 4272 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 213:
-#line 1698 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1698 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeCollection((yyvsp[0].strval).value, TRI_TRANSACTION_WRITE);
     }
-#line 4280 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 4280 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 214:
-#line 1701 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1701 "Aql/grammar.y" /* yacc.c:1661  */
     {
       if ((yyvsp[0].strval).length < 2 || (yyvsp[0].strval).value[0] != '@') {
         parser->registerParseError(TRI_ERROR_QUERY_BIND_PARAMETER_TYPE, TRI_errno_string(TRI_ERROR_QUERY_BIND_PARAMETER_TYPE), (yyvsp[0].strval).value, yylloc.first_line, yylloc.first_column);
@@ -4288,43 +4288,43 @@ yyreduce:
 
       (yyval.node) = parser->ast()->createNodeParameter((yyvsp[0].strval).value, (yyvsp[0].strval).length);
     }
-#line 4292 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 4292 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 215:
-#line 1711 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1711 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.node) = parser->ast()->createNodeParameter((yyvsp[0].strval).value, (yyvsp[0].strval).length);
     }
-#line 4300 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 4300 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 216:
-#line 1717 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1717 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.strval) = (yyvsp[0].strval);
     }
-#line 4308 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 4308 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 217:
-#line 1720 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1720 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.strval) = (yyvsp[0].strval);
     }
-#line 4316 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 4316 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
   case 218:
-#line 1725 "Aql/grammar.y" /* yacc.c:1646  */
+#line 1725 "Aql/grammar.y" /* yacc.c:1661  */
     {
       (yyval.strval) = (yyvsp[0].strval);
     }
-#line 4324 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 4324 "Aql/grammar.cpp" /* yacc.c:1661  */
     break;
 
 
-#line 4328 "Aql/grammar.cpp" /* yacc.c:1646  */
+#line 4328 "Aql/grammar.cpp" /* yacc.c:1661  */
       default: break;
     }
   /* User semantic actions sometimes alter yychar, and that requires
diff --git a/arangod/Aql/grammar.h b/arangod/Aql/grammar.h
index 463db4cb8c..e4db7dca08 100644
--- a/arangod/Aql/grammar.h
+++ b/arangod/Aql/grammar.h
@@ -124,7 +124,7 @@ extern int Aqldebug;
 
 union YYSTYPE
 {
-#line 19 "Aql/grammar.y" /* yacc.c:1909  */
+#line 19 "Aql/grammar.y" /* yacc.c:1915  */
 
   arangodb::aql::AstNode*  node;
   struct {
@@ -134,7 +134,7 @@ union YYSTYPE
   bool                     boolval;
   int64_t                  intval;
 
-#line 138 "Aql/grammar.hpp" /* yacc.c:1909  */
+#line 138 "Aql/grammar.hpp" /* yacc.c:1915  */
 };
 
 typedef union YYSTYPE YYSTYPE;