From c11d391e622cab7c4c19165a8c68eb79252f0c40 Mon Sep 17 00:00:00 2001
From: Teon Banek <teon.banek@memgraph.io>
Date: Wed, 22 Jan 2020 13:30:11 +0100
Subject: [PATCH] Print the type of ExpandVariable in EXPLAIN

Reviewers: mferencevic, ipaljak

Reviewed By: mferencevic, ipaljak

Subscribers: pullbot

Differential Revision: https://phabricator.memgraph.io/D2631
---
 src/query/plan/pretty_print.cpp | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/src/query/plan/pretty_print.cpp b/src/query/plan/pretty_print.cpp
index 4577be61d..49ee80de6 100644
--- a/src/query/plan/pretty_print.cpp
+++ b/src/query/plan/pretty_print.cpp
@@ -97,8 +97,23 @@ bool PlanPrinter::PreVisit(query::plan::Expand &op) {
 }
 
 bool PlanPrinter::PreVisit(query::plan::ExpandVariable &op) {
+  using Type = query::EdgeAtom::Type;
   WithPrintLn([&](auto &out) {
-    *out_ << "* ExpandVariable (" << op.input_symbol_.name() << ")"
+    *out_ << "* ";
+    switch (op.type_) {
+      case Type::DEPTH_FIRST:
+        *out_ << "ExpandVariable";
+        break;
+      case Type::BREADTH_FIRST:
+        *out_ << (op.common_.existing_node ? "STShortestPath" : "BFSExpand");
+        break;
+      case Type::WEIGHTED_SHORTEST_PATH:
+        *out_ << "WeightedShortestPath";
+        break;
+      case Type::SINGLE:
+        LOG(FATAL) << "Unexpected ExpandVariable::type_";
+    }
+    *out_ << " (" << op.input_symbol_.name() << ")"
           << (op.common_.direction == query::EdgeAtom::Direction::IN ? "<-"
                                                                      : "-")
           << "[" << op.common_.edge_symbol.name();