Add doc examples

src/planner/plan/plan_subquery.cpp

@@ -150,6 +150,9 @@ void QueryPlanner::planSubqueryIfNecessary(
     if (ExpressionVisitor::hasSubquery(*expression)) {
         auto expressionCollector = std::make_unique<ExpressionCollector>();
         for (auto& expr : expressionCollector->collectTopLevelSubqueryExpressions(expression)) {
+            if (plan.getSchema()->isExpressionInScope(*expr)) {
+                continue;
+            }
             planSubquery(expr, plan);
         }
     }

test/test_files/demo_db/demo_db.test

@@ -5,6 +5,14 @@
 
 -CASE DemoDBTest
 
+-LOG CountSubquery
+-STATEMENT MATCH (a:User) RETURN a.name, COUNT { MATCH (a)<-[:Follows]-(b:User) } AS num_follower ORDER BY num_follower;
+---- 4
+Adam|0
+Karissa|1
+Noura|1
+Zhang|2
+
 -LOG Limit1
 -STATEMENT MATCH (u:User) RETURN u.name ORDER BY u.age DESC LIMIT 3;
 ---- 3
@@ -119,13 +127,14 @@ Noura|{_NODES: [{_ID: 0:2, _LABEL: User, name: Zhang, age: 50}], _RELS: [(0:0)-{
 Zhang|{_NODES: [], _RELS: [(0:0)-{_LABEL: Follows, _ID: 2:1, since: 2020}->(0:2)]}
 Zhang|{_NODES: [{_ID: 0:1, _LABEL: User, name: Karissa, age: 40}], _RELS: [(0:0)-{_LABEL: Follows, _ID: 2:0, since: 2020}->(0:1),(0:1)-{_LABEL: Follows, _ID: 2:2, since: 2021}->(0:2)]}
 
--LOG VarLengthFilter
--STATEMENT MATCH p = (a:User)-[:Follows*1..2 (r, _ | WHERE r.since < 2022) ]->(b:User) WHERE a.name = 'Adam' RETURN DISTINCT b.name;
+-LOG RecursiveJoinFilter
+-STATEMENT MATCH p = (a:User)-[:Follows*1..2 (r, n | WHERE r.since < 2022 AND n.age > 45) ]->(b:User)
+        WHERE a.name = 'Adam' RETURN DISTINCT b.name, COUNT(*);
 ---- 2
-Karissa
-Zhang
+Karissa|1
+Zhang|1
 
--LOG VarLengthFilter2
+-LOG RecursiveJoinFilter2
 -STATEMENT MATCH (a:User)-[e:Follows*1..2 (r, n | WHERE r.since > 2020 | {r.since}, {n.name})]->(b:User)
            WHERE a.age > 0
            RETURN nodes(e), rels(e);

test/test_files/demo_db/demo_db_delete.test

@@ -9,15 +9,39 @@
 -STATEMENT MATCH (u:User) RETURN COUNT(*)
 ---- 1
 5
--STATEMENT MATCH (u:User) WHERE u.name = 'Alice' DELETE u
----- ok
+-STATEMENT MATCH (u:User) WHERE u.name = 'Alice' DELETE u RETURN u.*;
+---- 1
+Alice|35
 -STATEMENT MATCH (u:User) RETURN COUNT(*)
 ---- 1
 4
 
 -CASE DeleteRelTest
--STATEMENT MATCH (u:User)-[f:Follows]->(u1:User) WHERE u.name = 'Adam' AND u1.name = 'Karissa' DELETE f
----- ok
+-STATEMENT MATCH (u:User)-[f:Follows]->(u1:User) WHERE u.name = 'Adam' AND u1.name = 'Karissa' DELETE f RETURN f.*;
+---- 1
+2020
 -STATEMENT MATCH (u:User)-[f:Follows]->(u1:User) WHERE u.name='Adam' RETURN u1.name
 ---- 1
 Zhang
+
+-CASE DetachDelete
+-STATEMENT MATCH ()-[]->() RETURN COUNT(*)
+---- 1
+8
+-STATEMENT MATCH (u:User) WHERE u.name = 'Adam' DETACH DELETE u RETURN u;
+---- 1
+{_ID: 0:0, _LABEL: User, name: Adam, age: 30}
+-STATEMENT MATCH ()-[]->() RETURN COUNT(*)
+---- 1
+5
+
+-CASE DeleteAllTest
+-STATEMENT MATCH (u:User) DETACH DELETE u RETURN u.*;
+---- 4
+Adam|30
+Karissa|40
+Noura|25
+Zhang|50
+-STATEMENT MATCH ()-[]->() RETURN COUNT(*)
+---- 1
+0

test/test_files/exceptions/binder/binder_error.test

@@ -554,12 +554,12 @@ Binder exception: Invalid number of arguments for macro ADD5.
 ---- error
 Binder exception: Invalid number of arguments for macro ADD4.
 
--CASE CopyToNPYFormat
+-LOG CopyToNPYFormat
 -STATEMENT COPY (MATCH (a:person) RETURN a) TO 'person.npy';
 ---- error
 Binder exception: COPY TO currently only supports csv and parquet files.
 
--CASE InvalidArgCast
+-LOG InvalidArgCast
 -STATEMENT RETURN cast("[sdf, fsd, fad]", "STRING[]", "3rd arg");
 ---- error
 Binder exception: Invalid number of arguments for given function CAST. Expected: 2, Actual: 3.