[BUG] Insight failed on ldbc query is4

**Describe the bug**
A clear and concise description of what the bug is.

The query is as follows:

```
MATCH (m:POST|COMMENT {id: 1030792332314L})
RETURN
CASE WHEN m.content = "" THEN m.imageFile
ELSE m.content END as messageContent,
m.creationDate as messageCreationDate
```

However, Insight outputs unexpected results. Fix it.

Similar bug occurs in ic7.