fix error

nebula/queries/interactive-complex-1.ngql

@@ -1,7 +1,7 @@
 MATCH p=(person:Person)-[:KNOWS*1..3]-(friend:Person {firstName: $firstName})
 WHERE id(person) == $personId AND id(friend) != $personId
-WITH friend,toInteger(substr(id(friend), 2)) as friendId, min(length(p)) AS distance
-ORDER BY distance ASC, friend.Person.lastName ASC, friendId ASC
+WITH friend,toInteger(substr(id(friend), 2)) as friendId, min(length(p)) AS distance, friend.Person.lastName AS lastName
+ORDER BY distance ASC, lastName ASC, friendId ASC
 LIMIT 20
 MATCH (friend)-[:IS_LOCATED_IN]->(friendCity:Place)
 OPTIONAL MATCH (friend)-[studyAt:STUDY_AT]->(uni:Organisation)-[:IS_LOCATED_IN]->(uniCity:Place)

nebula/queries/interactive-complex-10.ngql

@@ -4,7 +4,7 @@ WITH person, city, friend, datetime({epochMillis: friend.Person.birthday}) as bi
 WHERE  (birthday.month==$month AND birthday.day>=21) OR
         (birthday.month==($month%12)+1 AND birthday.day<22)
 WITH DISTINCT friend, city, person
-OPTIONAL MATCH (friend)<-[:HAS_CREATOR]-(post:Post)
+OPTIONAL MATCH (friend)<-[:POST_HAS_CREATOR]-(post:Post)
 WITH friend, city, collect(post) AS posts, person
 WITH friend,
      city,

nebula/queries/interactive-complex-12.ngql

@@ -1,10 +1,15 @@
-MATCH (n:Person)-[:KNOWS]-(friend:Person)<-[:COMMENT_HAS_CREATOR]-(`comment`:`Comment`)-[:REPLY_OF_POST]->(:Post)-[:HAS_TAG]->(`tag`:`Tag`)-[:HAS_TYPE]->(tagClass:Tagclass)-[:IS_SUBCLASS_OF*0..100]->(baseTagClass:Tagclass)
-  WHERE id(n) == $personId AND (tagClass.Tagclass.name == $tagClassName OR baseTagClass.Tagclass.name == $tagClassName)
-  RETURN
+MATCH (tag1:`Tag`)-[:HAS_TYPE|IS_SUBCLASS_OF*0..6]->(baseTagClass:Tagclass)
+WHERE tag1.`Tag`.name == $tagClassName OR baseTagClass.Tagclass.name == $tagClassName
+WITH collect(id(tag1)) as T
+MATCH (p:Person)-[:KNOWS]-(friend:Person)<-[:COMMENT_HAS_CREATOR]-(comment1:`Comment`)-[:REPLY_OF_POST]->(:Post)-[:HAS_TAG]->(tag2:`Tag`)
+WHERE id(p) == $personId AND id(tag2) in T
+RETURN
     toInteger(substr(id(friend),2)) AS personId,
     friend.Person.firstName AS personFirstName,
     friend.Person.lastName AS personLastName,
-    collect(DISTINCT `tag`.`Tag`.name) AS tagNames,
-    count(DISTINCT id(`comment`)) AS replyCount
-    ORDER BY replyCount DESC, personId ASC
-    LIMIT 20
+    collect(DISTINCT tag2.`Tag`.name) AS tagNames,
+    count(DISTINCT id(comment1)) AS replyCount
+ORDER BY
+    replyCount DESC,
+    personId ASC
+LIMIT 20

nebula/queries/interactive-complex-5.ngql

@@ -1 +1,11 @@
-GO 1 TO 2 STEPS FROM $personId OVER KNOWS WHERE KNOWS._dst != $personId YIELD distinct KNOWS._dst AS friendId | GO FROM $-.friendId OVER HAS_MEMBER REVERSELY WHERE HAS_MEMBER.joinDate > $minDate YIELD distinct HAS_MEMBER._dst AS forumId, $-.friendId as friendId| GO FROM $-.forumId OVER CONTAINER_OF YIELD $-.friendId AS friendId, $^.Forum.title AS title, $-.forumId AS forumId, CONTAINER_OF._dst AS postId | GO FROM $-.postId OVER POST_HAS_CREATOR WHERE POST_HAS_CREATOR._dst == $-.friendId YIELD $-.forumId AS forumId, $-.title AS forumTitle, $-.postId AS postId | group by $-.forumId, $-.forumTitle YIELD toInteger(substr($-.forumId, 2)) AS forumId, $-.forumTitle AS forumTitle, count($-.postId) AS postCount | ORDER BY $-.postCount DESC, $-.forumId ASC | LIMIT 20
+MATCH (person:Person)-[:KNOWS*1..2]-(friend:Person)<-[membership:HAS_MEMBER]-(forum:Forum)
+  WHERE id(person) == $personId AND id(friend) != $personId AND membership.joinDate > $minDate
+  WITH DISTINCT friend, forum
+  OPTIONAL MATCH (friend)<-[:POST_HAS_CREATOR]-(post:Post)<-[:CONTAINER_OF]-(forum)
+  WITH forum, count(post) AS postCount
+  RETURN
+    toInteger(substr(id(forum),2)) AS forumId,
+    forum.Forum.title AS forumTitle,
+    postCount
+    ORDER BY postCount DESC, forumId ASC
+    LIMIT 20

nebula/queries/interactive-complex-7.ngql

@@ -20,8 +20,12 @@ RETURN
     liker.Person.lastName AS personLastName,
     latestLike.likeTime AS likeCreationDate,
     id(latestLike.msg) AS messageId,
-    CASE WHEN tags(latestLike.msg) == ["Post"] THEN latestLike.msg.imageFile
-      ELSE latestLike.msg.content END AS messageContent,
+    CASE WHEN tags(latestLike.msg) == ["Post"] THEN
+          CASE WHEN size(latestLike.msg.imageFile) == 0 THEN latestLike.msg.content
+          ELSE latestLike.msg.imageFile
+          END
+    ELSE latestLike.msg.content
+    END AS messageContent,
     latestLike.msg.creationDate AS messageCreationDate,
     p IS NULL AS isNew
 ORDER BY

nebula/src/main/java/org/ldbcouncil/snb/impls/workloads/nebula/NebulaDb.java

@@ -18,6 +18,7 @@
 import java.net.UnknownHostException;
 import java.text.ParseException;
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.List;
 import java.util.Map;
 
@@ -89,16 +90,11 @@ public LdbcQuery1Result convertSingleResult(ResultSet.Record record) throws Unsu
 
             List<String> emails = new ArrayList<>();
             if (!record.get(8).isNull()) {
-                for (ValueWrapper email : record.get(8).asList()) {
-                    emails.add(email.asString());
-                }
+                Collections.addAll(emails, record.get(8).asString().split(","));
             }
-
             List<String> languages = new ArrayList<>();
             if (!record.get(9).isNull()) {
-                for (ValueWrapper lang : record.get(9).asList()) {
-                    languages.add(lang.asString());
-                }
+                Collections.addAll(languages, record.get(9).asString().split(","));
             }
 
             List<LdbcQuery1Result.Organization> universities = new ArrayList<>();