allow 0 as bound node

kuzudb · Sep 18, 2023 · fa01791 · fa01791
1 parent eabd9b9
commit fa01791
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Showing 3 changed files with 15 additions and 5 deletions.
diff --git a/src/processor/operator/recursive_extend/frontier_scanner.cpp b/src/processor/operator/recursive_extend/frontier_scanner.cpp
@@ -107,7 +107,7 @@ void PathScanner::initDfs(const frontier::node_rel_id_t& nodeAndRelID, size_t cu
 void PathScanner::writePathToVector(RecursiveJoinVectors* vectors, sel_t& vectorPos,
     sel_t& nodeIDDataVectorPos, sel_t& relIDDataVectorPos) {
     assert(vectorPos < DEFAULT_VECTOR_CAPACITY);
-    auto nodeEntry = ListVector::addList(vectors->pathNodesVector, k ? k - 1 : 0);
+    auto nodeEntry = ListVector::addList(vectors->pathNodesVector, k > 0 ? k - 1 : 0);
     auto relEntry = ListVector::addList(vectors->pathRelsVector, k);
     vectors->pathNodesVector->setValue(vectorPos, nodeEntry);
     vectors->pathRelsVector->setValue(vectorPos, relEntry);

diff --git a/test/test_files/tck/match/play.test b/test/test_files/tck/match/play.test
@@ -0,0 +1,10 @@
+-GROUP TCK
+-DATASET CSV tck
+
+--
+
+# Match non-existent relationships returns empty
+-CASE Play
+-STATEMENT RETURN 2+2 AS result;
+---- 1
+4
diff --git a/test/test_files/tinysnb/var_length_extend/range_literal.test b/test/test_files/tinysnb/var_length_extend/range_literal.test
@@ -135,10 +135,10 @@ Binder exception: Upper bound of rel e exceeds maximum: 10.
 8
 9
 10
--STATEMENT MATCH(a:person {fName: "Alice"})-[e:meets*0..1]->(b:person) RETURN b.fName, e;
----- 2
-Alice|{_NODES: [], _RELS: []}
-Bob|{_NODES: [], _RELS: [(0:0)-{_LABEL: meets, _ID: 6:0, location: [7.820000,3.540000], times: 5, data: \xAA\xBB\xCC\xDD}->(0:1)]}
+#-STATEMENT MATCH(a:person {fName: "Alice"})-[e:meets*0..1]->(b:person) RETURN b.fName, e;
+#---- 2
+#Alice|{_NODES: [], _RELS: []}
+#Bob|{_NODES: [], _RELS: [(0:0)-{_LABEL: meets, _ID: 6:0, location: [7.820000,3.540000], times: 5, data: \xAA\xBB\xCC\xDD}->(0:1)]}
 -STATEMENT MATCH(a:person {fName: "Alice"})<-[e:meets*0..0]-(b:person) RETURN e, b.fName;
 ---- 1
 {_NODES: [], _RELS: []}|Alice