Fix variable types collected and graph crash

src/graph/planner/match/MatchPlanner.cpp

@@ -78,17 +78,19 @@ Status MatchPlanner::connectMatchPlan(SubPlan& queryPlan, MatchClauseContext* ma
     if (matchCtx->isOptional) {
       // connect LeftJoin match filter
       auto& whereCtx = matchCtx->where;
-      if (whereCtx.get() != nullptr) {
-        auto exprs =
-            ExpressionUtils::collectAll(whereCtx->filter, {Expression::Kind::kLabelTagProperty});
+      if (whereCtx.get() != nullptr && whereCtx->filter != nullptr) {
+        auto exprs = ExpressionUtils::collectAll(
+            whereCtx->filter, {Expression::Kind::kVarProperty, Expression::Kind::kLabel});
 
         // Check if all aliases in where clause are generated by the current match statement pattern
         std::vector<std::string> aliases;
         for (const auto* expr : exprs) {
-          DCHECK_EQ(expr->kind(), Expression::Kind::kLabelTagProperty);
-          auto* labelExpr = static_cast<const LabelTagPropertyExpression*>(expr)->label();
-          DCHECK_EQ(labelExpr->kind(), Expression::Kind::kVarProperty);
-          aliases.emplace_back(static_cast<const PropertyExpression*>(labelExpr)->prop());
+          if (expr->kind() == Expression::Kind::kVarProperty) {
+            aliases.emplace_back(static_cast<const PropertyExpression*>(expr)->prop());
+          } else {
+            DCHECK_EQ(expr->kind(), Expression::Kind::kLabel);
+            aliases.emplace_back(static_cast<const LabelExpression*>(expr)->name());
+          }
         }
         auto aliasesGenerated = matchCtx->aliasesGenerated;
         if (!std::all_of(aliases.begin(), aliases.end(), [&aliasesGenerated](std::string& alias) {

tests/tck/features/match/MultiLineMultiQueryParts.feature

@@ -172,6 +172,37 @@ Feature: Multi Line Multi Query Parts
       | "Tim Duncan" | "Manu Ginobili"     | NULL |
       | "Tim Duncan" | "Manu Ginobili"     | NULL |
       | "Tim Duncan" | "Manu Ginobili"     | NULL |
+    When executing query:
+      """
+      MATCH (m)-[]->(n) WHERE id(m)=="Tim Duncan"
+      OPTIONAL MATCH (n)-[]->(l) WHERE id(n)=="Tony Parker"
+      RETURN id(m) AS m, id(n) AS n, id(l) AS l;
+      """
+    Then the result should be, in any order:
+      | m            | n                   | l                   |
+      | "Tim Duncan" | "Spurs"             | NULL                |
+      | "Tim Duncan" | "LaMarcus Aldridge" | NULL                |
+      | "Tim Duncan" | "Tony Parker"       | "Spurs"             |
+      | "Tim Duncan" | "Tony Parker"       | "LaMarcus Aldridge" |
+      | "Tim Duncan" | "Tony Parker"       | "LaMarcus Aldridge" |
+      | "Tim Duncan" | "Tony Parker"       | "Kyle Anderson"     |
+      | "Tim Duncan" | "Tony Parker"       | "Tim Duncan"        |
+      | "Tim Duncan" | "Tony Parker"       | "Tim Duncan"        |
+      | "Tim Duncan" | "Tony Parker"       | "Manu Ginobili"     |
+      | "Tim Duncan" | "Tony Parker"       | "Manu Ginobili"     |
+      | "Tim Duncan" | "Tony Parker"       | "Hornets"           |
+      | "Tim Duncan" | "Tony Parker"       | "Spurs"             |
+      | "Tim Duncan" | "Tony Parker"       | "LaMarcus Aldridge" |
+      | "Tim Duncan" | "Tony Parker"       | "LaMarcus Aldridge" |
+      | "Tim Duncan" | "Tony Parker"       | "Kyle Anderson"     |
+      | "Tim Duncan" | "Tony Parker"       | "Tim Duncan"        |
+      | "Tim Duncan" | "Tony Parker"       | "Tim Duncan"        |
+      | "Tim Duncan" | "Tony Parker"       | "Manu Ginobili"     |
+      | "Tim Duncan" | "Tony Parker"       | "Manu Ginobili"     |
+      | "Tim Duncan" | "Tony Parker"       | "Hornets"           |
+      | "Tim Duncan" | "Danny Green"       | NULL                |
+      | "Tim Duncan" | "Manu Ginobili"     | NULL                |
+      | "Tim Duncan" | "Manu Ginobili"     | NULL                |
     When executing query:
       """
       OPTIONAL match (v:player) WHERE v.player.age > 41
@@ -245,7 +276,6 @@ Feature: Multi Line Multi Query Parts
       | count |
       | 4     |
 
-  @skip
   Scenario: Multi Line Multi Query Parts
     When executing query:
       """
@@ -288,15 +318,6 @@ Feature: Multi Line Multi Query Parts
     Then the result should be, in order:
       | scount |
       | 270    |
-    When executing query:
-      """
-      MATCH (m)-[]-(n) WHERE id(m)=="Tim Duncan"
-      OPTIONAL MATCH (n)-->(v) WHERE v.player.age < m.player.age
-      RETURN count(*) AS count
-      """
-    Then the result should be, in order:
-      | count |
-      | 45    |
     When executing query:
       """
       MATCH (a:player{age:42}) WITH a
@@ -361,3 +382,9 @@ Feature: Multi Line Multi Query Parts
       RETURN n,v
       """
     Then a SemanticError should be raised at runtime: The where clause of optional match statement that reference variables defined by other statements is not supported yet.
+    When executing query:
+      """
+      MATCH (m)-[]-(n) WHERE id(m)=="Tim Duncan"
+      OPTIONAL MATCH (n)-->(v) WHERE id(v) < id(m) RETURN count(*) AS count
+      """
+    Then a SemanticError should be raised at runtime: The where clause of optional match statement that reference variables defined by other statements is not supported yet.

tests/tck/ldbc/business_intelligence_workload/Read.feature

@@ -156,6 +156,7 @@ Feature: LDBC Business Intelligence Workload - Read
         (forum)-[:HAS_MEMBER]->(person:Person)
       OPTIONAL MATCH
         (person)<-[:HAS_CREATOR]-(post:Post)<-[:CONTAINER_OF]-(popularForum:Forum)
+      WITH popularForums, popularForum, person, post
       WHERE popularForum IN popularForums
       RETURN
         person.Person.id AS personId,