Fix the == operator of Path (vesoft-inc#2524)

* fix path equal

* minor

Co-authored-by: Cheng Xuntao <7731943+xtcyclist@users.noreply.github.com>

src/common/datatypes/Path.h

@@ -79,16 +79,16 @@ struct Step {
   }
 
   bool operator==(const Step& rhs) const {
-    return dst == rhs.dst && type == rhs.type && name == rhs.name && ranking == rhs.ranking &&
-           props == rhs.props;
+    return dst == rhs.dst && (type == rhs.type || type == -rhs.type) && name == rhs.name &&
+           ranking == rhs.ranking && props == rhs.props;
   }
 
   bool operator<(const Step& rhs) const {
     if (dst != rhs.dst) {
       return dst < rhs.dst;
     }
-    if (type != rhs.type) {
-      return type < rhs.type;
+    if (type != rhs.type && type != -rhs.type) {
+      return abs(type) < abs(rhs.type);
     }
     if (ranking != rhs.ranking) {
       return ranking < rhs.ranking;

tests/tck/features/match/Path.feature

@@ -37,6 +37,20 @@ Feature: Matching paths
     Then the result should be, in any order:
       | count(p) | count(p2) |
       | 966      | 966       |
+    When executing query:
+      """
+      match p = (v:Label_5)-[e:Rel_0]->(v1:Label_1),
+      p2 = (v)<-[e1:Rel_0]-(v1)
+      where id(v) == 47
+      and (p!=p2 or p<p2 or p>p2)
+      and e == e1
+      and v == v
+      and v1 == v1
+      return count(*)
+      """
+    Then the result should be, in any order:
+      | count(*) |
+      | 0        |
 
   # The correctness of the following test cases needs to be verified, mark it @skip for now
   @skip