Wrong query results?

Users Dgraph
1

In my below query, I expected 3 nodes it showed only 2.
Does anyone know the issue here?
Thanks in advance

  • I expected 3 connected nodes
CourseTcode(201)-->Course("2021-08-01T00:00:02.298240")
CourseTcode(201)-->Course("2022-01-01T00:00:02.298240")

  • Actually seen are 2 nodes

    CourseTcode(201)-->Course("2021-08-01T00:00:02.298240")

  • My query

    {
 test(func: has(CourseTcode.courses), first:5) {
 CourseTcode .codeConceptId
 CourseTcode.courses{
   Course .timestamp
  }
 }
}

  • Data Ingestion

    <_:my.org/Student/10101/Course/201/Event/1> <Course.eventId> "1" .
<_:my.org/Student/10101/Course/201/Event/1> <Course.timestamp> "2021-08-01T00:00:02.298240" 
<_:my.org/Student/10101/Course/201/Event/1> <Course.student> <_:my.org/Student/10101> .
<_:my.org/Student/10101> <Student.courses> <_:my.org/Student/10101/Course/201/Event/1> .
<_:my.org/Student/10101/Course/201/Event/1> <Course.codeId> <_:my.org/CourseTcode/201> .
<_:my.org/CourseTcode/201> <CourseTcode.courses> 
<_:my.org/Student/10101/Course/201/Event/1>
<_:my.org/Student/10101/Course/201/Event/2> <Course.eventId> "2" .
<_:my.org/Student/10101/Course/201/Event/2> <Course.timestamp> "2022-01-01T00:00:02.298240" 
<_:my.org/Student/10101/Course/201/Event/2> <Course.student> <_:my.org/Student/10101> .
<_:my.org/Student/10101> <Student.courses> <_:my.org/Student/10101/Course/201/Event/2> .
<_:my.org/Student/10101/Course/201/Event/2> <Course.codeId> <_:my.org/CourseTcode/201> .
<_:my.org/CourseTcode/201> <CourseTcode.courses> 
<_:my.org/Student/10101/Course/201/Event/2>

  • My Scheme

    type Student {
  studentId: String! @id
  courses: [Course] @hasInverse(field: student)
  xid: String!  @search(by: [hash])
}

type Course {
  codeId: CourseTcode!
  eventId: Int!
  timestamp: DateTime! @search
  student: Student
  xid: String! @search(by: [hash])
}

type CourseTcode {
  codeConceptId: Int! @id
  courses: [Course] @hasInverse(field: codeId)
  xid: String! @search(by: [hash])
}
2

Sorry for the post, it works now.